feat(simulation): add ROS 2 swarm controller package

ROS 2 package for coordinating PX4 SIH multi-drone swarm missions via
XRCE-DDS. Includes:

- swarm_controller.py: orchestrates N drones through 6 phases
  (EV lock, arm/takeoff, grid hold, circle transition, circle hold,
  kamikaze dive) with DDS cross-talk filtering for multi-instance
  XRCE-DDS setups
- vision_provider.py: publishes noisy VehicleOdometry from ground
  truth for EKF2 external vision fusion (placeholder for non-GPS)
- swarm_launch.py: ROS 2 launch file for N vision providers + controller
- run_swarm.sh: Docker entrypoint that launches PX4 instances,
  XRCE-DDS agent, and ROS 2 nodes
- Dockerfile + build_docker.sh: containerized build with ROS 2 Jazzy,
  px4_msgs from PX4 source, and the swarm package

Validated with 4 drones: all phases complete, 4/4 impacts, ULogs
generated per instance (~16 MB each).

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

.clang-tidy

@@ -105,6 +105,81 @@ Checks:          '*,
                   -readability-redundant-declaration,
                   -readability-static-accessed-through-instance,
                   -readability-static-definition-in-anonymous-namespace,
+                  -altera-struct-pack-align,
+                  -bugprone-easily-swappable-parameters,
+                  -concurrency-mt-unsafe,
+                  -cppcoreguidelines-avoid-const-or-ref-data-members,
+                  -cppcoreguidelines-macro-usage,
+                  -cppcoreguidelines-non-private-member-variables-in-classes,
+                  -hicpp-uppercase-literal-suffix,
+                  -llvm-qualified-auto,
+                  -misc-non-private-member-variables-in-classes,
+                  -misc-use-anonymous-namespace,
+                  -modernize-concat-nested-namespaces,
+                  -readability-const-return-type,
+                  -readability-identifier-length,
+                  -readability-isolate-declaration,
+                  -readability-qualified-auto,
+                  -readability-redundant-access-specifiers,
+                  -cppcoreguidelines-avoid-do-while,
+                  -misc-include-cleaner,
+                  -misc-const-correctness,
+                  -llvm-else-after-return,
+                  -readability-function-cognitive-complexity,
+                  -cppcoreguidelines-init-variables,
+                  -bugprone-reserved-identifier,
+                  -cert-dcl37-c,
+                  -cert-dcl51-cpp,
+                  -modernize-use-nodiscard,
+                  -misc-confusable-identifiers,
+                  -cert-err33-c,
+                  -readability-redundant-inline-specifier,
+                  -readability-uppercase-literal-suffix,
+                  -bugprone-narrowing-conversions,
+                  -cppcoreguidelines-narrowing-conversions,
+                  -bugprone-switch-missing-default-case,
+                  -cppcoreguidelines-avoid-goto,
+                  -hicpp-avoid-goto,
+                  -bugprone-branch-clone,
+                  -bugprone-unhandled-self-assignment,
+                  -cert-oop54-cpp,
+                  -performance-enum-size,
+                  -readability-avoid-nested-conditional-operator,
+                  -cppcoreguidelines-prefer-member-initializer,
+                  -cppcoreguidelines-explicit-virtual-functions,
+                  -readability-convert-member-functions-to-static,
+                  -readability-make-member-function-const,
+                  -bugprone-implicit-widening-of-multiplication-result,
+                  -bugprone-multi-level-implicit-pointer-conversion,
+                  -bugprone-signed-char-misuse,
+                  -cppcoreguidelines-avoid-non-const-global-variables,
+                  -cppcoreguidelines-use-default-member-init,
+                  -hicpp-multiway-paths-covered,
+                  -hicpp-named-parameter,
+                  -misc-header-include-cycle,
+                  -misc-no-recursion,
+                  -performance-no-int-to-ptr,
+                  -readability-avoid-return-with-void-value,
+                  -readability-avoid-unconditional-preprocessor-if,
+                  -readability-delete-null-pointer,
+                  -readability-redundant-casting,
+                  -readability-redundant-member-init,
+                  -readability-reference-to-constructed-temporary,
+                  -readability-simplify-boolean-expr,
+                  -cert-msc32-c,
+                  -cert-msc33-c,
+                  -cert-msc51-cpp,
+                  -cert-str34-c,
+                  -cppcoreguidelines-macro-to-enum,
+                  -modernize-macro-to-enum,
+                  -abseil-string-find-str-contains,
+                  -bugprone-suspicious-include,
+                  -clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,
+                  -clang-analyzer-optin.core.EnumCastOutOfRange,
+                  -modernize-type-traits,
+                  -misc-definitions-in-headers,
+                  -bugprone-casting-through-void,
+                  -readability-redundant-string-init,
                  '
 WarningsAsErrors: '*'
 CheckOptions:

.github/instructions/docs.en.instructions.md

@@ -21,8 +21,10 @@ applyTo: "docs/en/**"
   - Do not apply bold or italic styling inside a heading.
 - **Formatting:** 
   - **Bold:** Only for UI elements (buttons, menu items).
-  - **Italics (Emphasis):** For tool names (e.g., *QGroundControl*).
   - **Inline Code:** Use backticks for file paths, parameters, and CLI commands (e.g., `prettier`).
+    Backticks are optional for hyperlinked CLI commands and tool names.
+  - **Italics (Emphasis):** Use for application names (e.g., *QGroundControl*).
+    Emphasis is optional for hyperlinked applications.
 - **Structure:** End every line at the end of a sentence (Semantic Line Breaks).
 
 ## Linking & Navigation

.github/instructions/src.drivers.instructions.md

@@ -1,212 +0,0 @@
----
-applyTo: "src/drivers/**"
----
-
-# PX4 Driver Review Instructions
-
-This file provides guidelines for reviewing driver files in the `src/drivers/` directory.
-
-## Copyright Statements
-
-### Required Files
-
-All source files (`.cpp`, `.c`, `.hpp`, `.h`, `CMakeLists.txt`) MUST include a copyright statement at the top.
-
-**Exceptions:** 
-- `Kconfig` files
-- `module.yaml` files
-
-### Copyright Format
-
-**For new files (created in 2026):**
-```cpp
-/****************************************************************************
- *
- *   Copyright (c) 2026 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name PX4 nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-```
-
-**For updated files (originally created in 2015, updated in 2026):**
-```cpp
-/****************************************************************************
- *
- *   Copyright (c) 2015-2026 PX4 Development Team. All rights reserved.
- *
- * [... rest of copyright text ...]
- *
- ****************************************************************************/
-```
-
-### Key Points
-- First year should be the original creation year
-- When updating an existing file, update the year range: `YYYY-2026`
-- Use the current year (2026 in this case) for new files
-- Maintain consistent formatting with other PX4 driver files
-
----
-
-## Driver Self-Documentation
-
-All drivers MUST be self-documenting through the `print_usage()` method.
-
-### Required Implementation
-
-Every driver `.cpp` file must implement a `print_usage()` method that includes:
-
-1. **PRINT_MODULE_DESCRIPTION macro** - Contains markdown documentation
-2. **Module identification** - Using PRINT_MODULE_USAGE_NAME and optionally PRINT_MODULE_USAGE_SUBCATEGORY
-3. **Parameter documentation** - Relevant parameters, especially enablement parameters
-
-### PRINT_MODULE_DESCRIPTION Structure
-
-The description should follow this markdown format:
-
-```cpp
-PRINT_MODULE_DESCRIPTION(
-    R"DESCR_STR(
-### Description
-[Clear description of what the driver does and its primary functionality]
-
-### Implementation
-[Optional: High-level overview of how the driver works]
-
-### Examples
-[Optional: CLI usage examples if non-trivial]
-$ module_name start -d /dev/ttyS1
-$ module_name stop
-
-)DESCR_STR");
-```
-
-### Required Sections
-
-#### 1. Description Section
-- Brief explanation of the driver's purpose
-- Key features/capabilities
-- Important parameters (especially enable parameters like `SENS_XX_CFG`)
-
-#### 2. Documentation Links
-When applicable, include links to user documentation:
-```cpp
-Setup/usage information: https://docs.px4.io/main/en/sensor/[sensor-name].html
-```
-
-#### 3. Examples Section (when relevant)
-Provide CLI usage examples for non-trivial commands:
-```cpp
-### Examples
-Attempt to start driver on a specified serial device.
-$ vectornav start -d /dev/ttyS1
-Stop driver
-$ vectornav stop
-```
-
-### Complete Example
-
-```cpp
-int MyDriver::print_usage(const char *reason)
-{
-    if (reason) {
-        PX4_WARN("%s\n", reason);
-    }
-
-    PRINT_MODULE_DESCRIPTION(
-        R"DESCR_STR(
-### Description
-This driver interfaces with the XYZ sensor via I2C/SPI. It provides
-distance measurements and is automatically started when SENS_XYZ_CFG
-is set to the appropriate value.
-
-Key features:
-- Distance range: 0.2m to 50m
-- Update rate: up to 100Hz
-- I2C and SPI support
-
-Setup/usage information: https://docs.px4.io/main/en/sensor/xyz_sensor.html
-
-### Examples
-Start driver on I2C bus 1 with address 0x29:
-$ xyz_sensor start -X -b 1 -a 0x29
-)DESCR_STR");
-
-    PRINT_MODULE_USAGE_NAME("xyz_sensor", "driver");
-    PRINT_MODULE_USAGE_SUBCATEGORY("distance_sensor");
-    PRINT_MODULE_USAGE_COMMAND("start");
-    PRINT_MODULE_USAGE_PARAMS_I2C_SPI_DRIVER(true, true);
-    PRINT_MODULE_USAGE_PARAMS_I2C_ADDRESS(0x29);
-    PRINT_MODULE_USAGE_DEFAULT_COMMANDS();
-
-    return 0;
-}
-```
-
-### Common Patterns by Driver Type
-
-**For UART/Serial Drivers:**
-```cpp
-PRINT_MODULE_USAGE_PARAM_STRING('d', "/dev/ttyS3", "<file:dev>", "Serial device", true);
-```
-
-**For I2C/SPI Drivers:**
-```cpp
-PRINT_MODULE_USAGE_PARAMS_I2C_SPI_DRIVER(true, true);
-PRINT_MODULE_USAGE_PARAMS_I2C_ADDRESS(0x76);
-```
-
-**For Sensor Drivers:**
-```cpp
-PRINT_MODULE_USAGE_SUBCATEGORY("distance_sensor");  // or imu, magnetometer, etc.
-```
-
----
-
-## Review Checklist
-
-When reviewing driver files, verify:
-
-- [ ] Copyright header is present (except Kconfig and module.yaml)
-- [ ] Copyright year is correct (current year for new files, year range for updates)
-- [ ] `print_usage()` method exists
-- [ ] `PRINT_MODULE_DESCRIPTION` macro is present with markdown content
-- [ ] Description section explains driver purpose clearly
-- [ ] Relevant parameters are documented (especially enable parameters)
-- [ ] Documentation links are included when available
-- [ ] Examples are provided for complex CLI usage
-- [ ] Module name and category are correctly specified
-- [ ] Standard commands (start, stop, status) are documented
-
----
-
-## Additional Resources
-
-- Driver template examples: `src/drivers/*/` (various sensor types)
-- Module macros: `platforms/common/include/px4_platform_common/module.h`
-- Similar drivers for reference patterns (DShot, VectorNav, CrsfRc, etc.)

.github/workflows/build_all_targets.yml

@@ -2,6 +2,37 @@
 # - If you want to keep the tests running in GitHub Actions you need to uncomment the "runs-on: ubuntu-latest" lines
 #   and comment the "runs-on: [runs-on,runner=..." lines.
 # - If you would like to duplicate this setup try setting up "RunsOn" on your own AWS account try https://runs-on.com
+#
+# ===================================================================================
+# RELEASE UPLOAD LOGIC
+# ===================================================================================
+# This workflow handles building firmware and uploading to S3 + GitHub Releases.
+#
+# S3 Bucket Structure (s3://px4-travis/Firmware/):
+#   - master/          <- Latest main branch build (for QGC compatibility)
+#   - stable/          <- Latest stable release, controlled by 'stable' branch
+#   - beta/            <- Latest pre-release, controlled by 'beta' branch
+#   - vX.Y.Z/          <- Archived stable release
+#   - vX.Y.Z-beta1/    <- Archived pre-release
+#
+# Trigger Behavior:
+#   - Tag v1.16.1        -> Upload to: v1.16.1/ only (versioned archive)
+#   - Tag v1.17.0-beta1  -> Upload to: v1.17.0-beta1/ only (versioned archive)
+#   - Branch main        -> Upload to: master/ (for QGC compatibility)
+#   - Branch stable      -> Upload to: stable/ (QGC stable firmware)
+#   - Branch beta        -> Upload to: beta/ (QGC beta firmware)
+#   - Branch release/**  -> Build only, no S3 upload (CI validation)
+#   - Pull requests      -> Build only, no S3 upload (CI validation)
+#
+# GitHub Releases:
+#   - All version tags create a draft GitHub Release
+#   - Pre-releases (alpha/beta/rc suffixes) are automatically marked as such
+#
+# IMPORTANT: Version tags do NOT upload to stable/ or beta/. Only the
+# corresponding branch pushes control those directories. This prevents
+# pre-release tags from accidentally overwriting stable firmware (#26340)
+# and avoids race conditions between tag and branch builds.
+# ===================================================================================
 
 name: Build all targets
 
@@ -29,6 +60,7 @@ concurrency:
 permissions:
   contents: write
   actions: read
+  packages: read
 
 jobs:
   group_targets:
@@ -94,6 +126,9 @@ jobs:
       fail-fast: false
     container:
       image: ${{ matrix.container }}
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - uses: runs-on/action@v2
       - uses: actions/checkout@v4
@@ -159,6 +194,13 @@ jobs:
           path: ~/.ccache
           key: ${{ steps.cc_restore.outputs.cache-primary-key }}
 
+  # ===========================================================================
+  # ARTIFACT UPLOAD JOB
+  # ===========================================================================
+  # Uploads build artifacts to S3 and creates GitHub Releases.
+  # Runs for version tags (v*), main, stable, and beta branch pushes.
+  # See header comments for full upload logic documentation.
+  # ===========================================================================
   artifacts:
     name: Upload Artifacts
     # runs-on: ubuntu-latest
@@ -177,31 +219,31 @@ jobs:
       - name: Choose Upload Location
         id: upload-location
         run: |
-          # Determine upload location based on branch or tag with the following considerations:
-          # Destination: AWS S3 bucket px4-travis in folder Firmware/
-          # - If branch is main -> upload to master/
-          #   - Older versions of QGC are hardocded to look for master/
-          # - If branch is stable or beta -> upload to stable/ or beta/
-          # - If a tag vX.Y.Z -> upload to vX.Y.Z/
-          #   - Also update stable/ to point to the same version
-          #.  - Older versions of QGC are hardocded to look for stable/
-          # - If a pull request -> do not upload
           set -euo pipefail
 
           ref="${GITHUB_REF}"
           branch=${{ needs.group_targets.outputs.branchname  }}
           location="$branch"
+          is_prerelease="false"
 
+          # Main branch uploads to "master" for QGC backward compatibility
           if [[ "$branch" == "main" ]]; then
             location="master"
           fi
 
+          # Version tags: upload to versioned directory (e.g., v1.16.1/)
           if [[ "$ref" == refs/tags/v[0-9]* ]]; then
             tag="${ref#refs/tags/}"
             location="$tag"
+
+            # Pre-release tags contain -alpha, -beta, or -rc suffix
+            if [[ "$tag" =~ -(alpha|beta|rc) ]]; then
+              is_prerelease="true"
+            fi
           fi
 
           echo "uploadlocation=$location" >> $GITHUB_OUTPUT
+          echo "is_prerelease=$is_prerelease" >> $GITHUB_OUTPUT
 
       - name: Uploading Artifacts to S3 [${{ steps.upload-location.outputs.uploadlocation }}]
         uses: jakejarvis/s3-sync-action@master
@@ -215,28 +257,13 @@ jobs:
           SOURCE_DIR: artifacts/
           DEST_DIR: Firmware/${{ steps.upload-location.outputs.uploadlocation }}/
 
-      # if we are uploading artifacts to a versioned folder
-      # we should also update the stable folder in the s3 bucket
-      - name: Uploading Artifacts to S3 [stable]
-        uses: jakejarvis/s3-sync-action@master
-        if: startsWith(github.ref, 'refs/tags/v')
-        with:
-          args: --acl public-read
-        env:
-          AWS_S3_BUCKET: 'px4-travis'
-          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-          AWS_REGION: 'us-west-1'
-          SOURCE_DIR: artifacts/
-          DEST_DIR: Firmware/stable/
-
-      # if build is a release triggered by a versioned tag then create a github release
-      # and upload the build artifacts. A draft release is created so that the release
-      # can be reviewed before publishing
+      # Create a draft GitHub Release for all version tags
+      # Pre-releases are automatically marked as such
       - name: Upload Artifacts to GitHub Release
         uses: softprops/action-gh-release@v2
         if: startsWith(github.ref, 'refs/tags/v')
         with:
           draft: true
+          prerelease: ${{ steps.upload-location.outputs.is_prerelease == 'true' }}
           files: artifacts/*.px4
           name: ${{ steps.upload-location.outputs.uploadlocation }}

.github/workflows/checks.yml

@@ -19,6 +19,10 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
+
+    container:
+      image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
+
     strategy:
       fail-fast: false
       matrix:
@@ -35,20 +39,17 @@ jobs:
           "px4_sitl_allyes",
           "module_documentation",
         ]
+
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Building [${{ matrix.check }}]
-        uses: addnab/docker-run-action@v3
-        with:
-          image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
-          options: -v ${{ github.workspace }}:/workspace
-          run: |
-            cd /workspace
-            git config --global --add safe.directory /workspace
-            make ${{ matrix.check }}
+        run: |
+          cd "$GITHUB_WORKSPACE"
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+          make ${{ matrix.check }}
 
       - name: Uploading Coverage to Codecov.io
         if: contains(matrix.check, 'coverage')

.github/workflows/clang-tidy.yml

@@ -1,4 +1,4 @@
-name: Clang Tidy
+name: Static Analysis
 
 on:
   push:
@@ -11,20 +11,59 @@ on:
       - '**'
     paths-ignore:
       - 'docs/**'
+
+permissions:
+  contents: read
+
 jobs:
-  build:
-    runs-on: ubuntu-latest
+  clang_tidy:
+    name: Clang-Tidy
+    runs-on: [runs-on, runner=16cpu-linux-x64, "run-id=${{ github.run_id }}", "extras=s3-cache"]
+    container:
+      image: px4io/px4-dev:v1.17.0-beta1
     steps:
+    - uses: runs-on/action@v2
     - uses: actions/checkout@v4
       with:
         fetch-depth: 0
+        fetch-tags: true
 
-    - name: Testing (clang-tidy)
-      uses: addnab/docker-run-action@v3
+    - name: Configure Git Safe Directory
+      run: git config --system --add safe.directory '*'
+
+    - name: Restore Compiler Cache
+      id: cc_restore
+      uses: actions/cache/restore@v4
       with:
-        image: px4io/px4-dev-clang:2021-09-08
-        options: -v ${{ github.workspace }}:/workspace
-        run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
-          make clang-tidy
+        path: ~/.ccache
+        key: ccache-clang-tidy-${{ github.head_ref || github.ref_name }}
+        restore-keys: |
+          ccache-clang-tidy-${{ github.head_ref || github.ref_name }}-
+          ccache-clang-tidy-main-
+          ccache-clang-tidy-
+
+    - name: Configure Compiler Cache
+      run: |
+        mkdir -p ~/.ccache
+        echo "base_dir = ${GITHUB_WORKSPACE}" > ~/.ccache/ccache.conf
+        echo "compression = true" >> ~/.ccache/ccache.conf
+        echo "compression_level = 6" >> ~/.ccache/ccache.conf
+        echo "max_size = 120M" >> ~/.ccache/ccache.conf
+        echo "hash_dir = false" >> ~/.ccache/ccache.conf
+        echo "compiler_check = content" >> ~/.ccache/ccache.conf
+        ccache -s
+        ccache -z
+
+    - name: Run Clang-Tidy Analysis
+      run: make -j16 clang-tidy
+
+    - name: Compiler Cache Stats
+      if: always()
+      run: ccache -s
+
+    - name: Save Compiler Cache
+      if: always()
+      uses: actions/cache/save@v4
+      with:
+        path: ~/.ccache
+        key: ${{ steps.cc_restore.outputs.cache-primary-key }}

.github/workflows/commit_checks.yml

@@ -0,0 +1,148 @@
+name: Commit Quality
+
+on:
+  pull_request:
+    types: [opened, edited, synchronize, reopened]
+
+permissions:
+  contents: read
+  pull-requests: write
+  issues: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  PR_NUMBER: ${{ github.event.pull_request.number }}
+  IS_FORK: ${{ github.event.pull_request.head.repo.full_name != github.repository }}
+
+jobs:
+  pr-title:
+    name: PR Title
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: Tools/ci
+          fetch-depth: 1
+
+      - name: Check PR title
+        id: check
+        run: |
+          python3 Tools/ci/check_pr_title.py "${{ github.event.pull_request.title }}" --markdown-file comment.md && rc=0 || rc=$?
+          echo "exit_code=$rc" >> "$GITHUB_OUTPUT"
+
+      - name: Post or clear comment
+        if: env.IS_FORK == 'false'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if [ "${{ steps.check.outputs.exit_code }}" != "0" ]; then
+            python3 Tools/ci/pr_comment.py --marker pr-title --pr "$PR_NUMBER" --result fail < comment.md
+          else
+            python3 Tools/ci/pr_comment.py --marker pr-title --pr "$PR_NUMBER" --result pass
+          fi
+
+      - name: Result
+        if: steps.check.outputs.exit_code != '0'
+        run: |
+          echo "::error::PR title does not follow conventional commits format. See the PR comment for details."
+          exit 1
+
+  commit-messages:
+    name: Commit Messages
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: Tools/ci
+          fetch-depth: 1
+
+      - name: Check commit messages
+        id: check
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh api \
+            "repos/${{ github.repository }}/pulls/${PR_NUMBER}/commits?per_page=100" \
+            | python3 Tools/ci/check_commit_messages.py --markdown-file comment.md && rc=0 || rc=$?
+          echo "exit_code=$rc" >> "$GITHUB_OUTPUT"
+          # Check for warnings (non-empty markdown on exit 0)
+          if [ "$rc" -eq 0 ] && [ -s comment.md ]; then
+            echo "has_warnings=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "has_warnings=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Post or clear comment
+        if: env.IS_FORK == 'false'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if [ "${{ steps.check.outputs.exit_code }}" != "0" ]; then
+            python3 Tools/ci/pr_comment.py --marker commit-msgs --pr "$PR_NUMBER" --result fail < comment.md
+          elif [ "${{ steps.check.outputs.has_warnings }}" == "true" ]; then
+            python3 Tools/ci/pr_comment.py --marker commit-msgs --pr "$PR_NUMBER" --result warn < comment.md
+          else
+            python3 Tools/ci/pr_comment.py --marker commit-msgs --pr "$PR_NUMBER" --result pass
+          fi
+
+      - name: Result
+        if: steps.check.outputs.exit_code != '0'
+        run: |
+          echo "::error::Commit message errors found. See the PR comment for details."
+          exit 1
+
+  pr-body:
+    name: PR Description
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        if: env.IS_FORK == 'false'
+        uses: actions/checkout@v4
+        with:
+          sparse-checkout: Tools/ci
+          fetch-depth: 1
+
+      - name: Check PR body
+        id: check
+        env:
+          PR_BODY: ${{ github.event.pull_request.body }}
+        run: |
+          message=""
+          if [ -z "$PR_BODY" ]; then
+            message="PR description is empty. Please add a summary of the changes."
+            echo "::warning::PR description is empty."
+          else
+            cleaned=$(echo "$PR_BODY" | sed 's/<!--.*-->//g' | tr -d '[:space:]')
+            if [ -z "$cleaned" ]; then
+              message="PR description contains only template comments. Please fill in the details."
+              echo "::warning::PR description contains only template comments."
+            fi
+          fi
+          echo "message=$message" >> "$GITHUB_OUTPUT"
+
+      - name: Post or clear comment
+        if: env.IS_FORK == 'false'
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          if [ -n "${{ steps.check.outputs.message }}" ]; then
+            printf '%s\n' \
+              "## PR Description (advisory)" \
+              "" \
+              "This is **not blocking**, but your PR description appears to be empty or incomplete." \
+              "" \
+              "${{ steps.check.outputs.message }}" \
+              "" \
+              "A good PR description helps reviewers understand what changed and why." \
+              "" \
+              "---" \
+              "*This comment will be automatically removed once the issue is resolved.*" \
+            | python3 Tools/ci/pr_comment.py --marker pr-body --pr "$PR_NUMBER" --result warn
+          else
+            python3 Tools/ci/pr_comment.py --marker pr-body --pr "$PR_NUMBER" --result pass
+          fi

.github/workflows/compile_macos.yml

@@ -42,7 +42,7 @@ jobs:
       shell: cmake -P {0}
       run: |
         string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
-        message("::set-output name=timestamp::${current_date}")
+        file(APPEND "$ENV{GITHUB_OUTPUT}" "timestamp=${current_date}\n")
     - name: ccache cache files
       uses: actions/cache@v4
       with:

.github/workflows/dev_container.yml

@@ -130,8 +130,8 @@ jobs:
           load: false
           push: ${{ startsWith(github.ref, 'refs/tags/') || (github.event_name == 'workflow_dispatch' && github.event.inputs.deploy_to_registry) }}
           provenance: false
-          cache-from: type=gha,version=1,scope=${{ matrix.arch }}
-          cache-to: type=gha,version=1,mode=max,scope=${{ matrix.arch }}
+          cache-from: type=gha,scope=${{ matrix.arch }}
+          cache-to: type=gha,mode=max,scope=${{ matrix.arch }}
 
   deploy:
     name: Deploy To Registry

.github/workflows/docs-orchestrator.yml

@@ -0,0 +1,416 @@
+# Docs - Orchestrator
+#
+# Trigger paths:
+#   push (main, release/**)  → metadata-regen → build-site → deploy-aws
+#   pull_request              → detect-changes → pr-metadata-regen → link-check → build-site (if docs/source changed)
+#   workflow_dispatch         → metadata-regen → build-site → deploy-aws
+#
+# Container jobs (pr-metadata-regen, metadata-regen) run in px4-dev image and
+# require safe.directory + fetch-depth: 0 for git operations.
+
+name: Docs - Orchestrator
+
+on:
+  push:
+    branches:
+      - "main"
+      - "release/**"
+    paths:
+      - "docs/**"
+      - "src/**"
+      - "msg/**"
+      - "ROMFS/**"
+      - "Tools/module_config/**"
+      - ".github/workflows/docs-orchestrator.yml"
+  pull_request:
+    paths:
+      - "docs/**"
+      - ".github/workflows/docs-orchestrator.yml"
+  workflow_dispatch:
+
+concurrency:
+  group: docs-orchestrator-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # =============================================================================
+  # Detect Changes (PR only)
+  # =============================================================================
+  detect-changes:
+    name: "T1: Detect Changes"
+    if: github.event_name == 'pull_request'
+    permissions:
+      contents: read
+    runs-on: ubuntu-latest
+    outputs:
+      source_changed: ${{ steps.changes.outputs.source }}
+      docs_changed: ${{ steps.changes.outputs.docs }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dorny/paths-filter@v3
+        id: changes
+        with:
+          filters: |
+            source:
+              - 'src/**'
+              - 'msg/**'
+              - 'ROMFS/**'
+              - 'Tools/module_config/**'
+            docs:
+              - 'docs/**'
+
+  # =============================================================================
+  # PR Metadata Regen (conditional - only when PR touches source files)
+  # =============================================================================
+  pr-metadata-regen:
+    name: "T2: PR Metadata"
+    needs: [detect-changes]
+    if: github.event_name == 'pull_request' && needs.detect-changes.outputs.source_changed == 'true'
+    permissions:
+      contents: read
+    runs-on: [runs-on,runner=4cpu-linux-x64,image=ubuntu24-full-x64,"run-id=${{ github.run_id }}",spot=false,extras=s3-cache]
+    container:
+      image: px4io/px4-dev:v1.17.0-beta1
+    steps:
+      - uses: runs-on/action@v1
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Git ownership workaround
+        run: git config --system --add safe.directory '*'
+
+      - name: Cache Restore - ccache
+        id: cache-ccache
+        uses: actions/cache/restore@v4
+        with:
+          path: ~/.ccache
+          key: ccache-docs-metadata-${{ github.sha }}
+          restore-keys: |
+            ccache-docs-metadata-
+
+      - name: Setup ccache
+        run: |
+          mkdir -p ~/.ccache
+          echo "max_size = 1G" > ~/.ccache/ccache.conf
+
+      - name: Build px4_sitl_default
+        run: |
+          make px4_sitl_default
+        env:
+          CCACHE_DIR: ~/.ccache
+
+      - name: Cache Save - ccache
+        uses: actions/cache/save@v4
+        if: always()
+        with:
+          path: ~/.ccache
+          key: ccache-docs-metadata-${{ github.sha }}
+
+      - name: Generate and sync metadata
+        run: Tools/ci/metadata_sync.sh --generate --sync parameters airframes modules msg_docs failsafe_web
+        env:
+          CCACHE_DIR: ~/.ccache
+
+      - name: Upload metadata artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: pr-metadata
+          path: docs/
+          retention-days: 1
+
+  # =============================================================================
+  # Push Metadata Regen (main/release branches)
+  # =============================================================================
+  metadata-regen:
+    name: "T2: Metadata Sync"
+    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
+    permissions:
+      contents: write
+    runs-on: [runs-on,runner=4cpu-linux-x64,image=ubuntu24-full-x64,"run-id=${{ github.run_id }}",spot=false,extras=s3-cache]
+    container:
+      image: px4io/px4-dev:v1.17.0-beta1
+    steps:
+      - uses: runs-on/action@v1
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+          token: ${{ secrets.PX4BUILTBOT_PERSONAL_ACCESS_TOKEN }}
+
+      - name: Git ownership workaround
+        run: git config --system --add safe.directory '*'
+
+      - name: Cache Restore - ccache
+        id: cache-ccache
+        uses: actions/cache/restore@v4
+        with:
+          path: ~/.ccache
+          key: ccache-docs-metadata-${{ github.sha }}
+          restore-keys: |
+            ccache-docs-metadata-
+
+      - name: Setup ccache
+        run: |
+          mkdir -p ~/.ccache
+          echo "max_size = 1G" > ~/.ccache/ccache.conf
+
+      - name: Build px4_sitl_default
+        run: |
+          make px4_sitl_default
+        env:
+          CCACHE_DIR: ~/.ccache
+
+      - name: Cache Save - ccache
+        uses: actions/cache/save@v4
+        if: always()
+        with:
+          path: ~/.ccache
+          key: ccache-docs-metadata-${{ github.sha }}
+
+      - name: Generate and sync metadata
+        run: Tools/ci/metadata_sync.sh --generate --sync parameters airframes modules msg_docs failsafe_web
+        env:
+          CCACHE_DIR: ~/.ccache
+
+      - name: Install Node.js and Yarn
+        run: |
+          curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+          apt-get install -y nodejs
+          corepack enable
+
+      - name: Format markdown with Prettier
+        run: |
+          cd docs
+          yarn install --frozen-lockfile
+          yarn prettier --write "en/**/*.md"
+
+      - name: Commit and push changes
+        run: |
+          git config --global user.name "${{ secrets.PX4BUILDBOT_USER }}"
+          git config --global user.email "${{ secrets.PX4BUILDBOT_EMAIL }}"
+          git add docs/
+          if git diff --staged --quiet; then
+            echo "No changes to commit"
+          else
+            git commit -m "docs: auto-sync metadata [skip ci]
+
+            Co-Authored-By: PX4 BuildBot <${{ secrets.PX4BUILDBOT_EMAIL }}>"
+            git push
+          fi
+
+  # =============================================================================
+  # Link Check
+  # =============================================================================
+  link-check:
+    name: "T2: Link Check"
+    needs: [detect-changes, pr-metadata-regen]
+    if: always() && (github.event_name == 'pull_request')
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+          fetch-depth: 0
+
+      - name: Download metadata artifact
+        if: needs.pr-metadata-regen.result == 'success'
+        uses: actions/download-artifact@v4
+        with:
+          name: pr-metadata
+          path: docs/
+
+      - name: Get changed doc files
+        id: changed-files
+        uses: tj-actions/changed-files@v46.0.5
+        with:
+          json: true
+          write_output_files: true
+          output_dir: ./logs
+          base_sha: ${{ github.event.pull_request.base.sha }}
+          sha: ${{ github.event.pull_request.head.sha }}
+          files: |
+            docs/en/**/*.md
+
+      - name: Save changed files list
+        run: |
+          mv ./logs/all_changed_files.json ./logs/prFiles.json
+          echo "Changed files:"
+          cat ./logs/prFiles.json
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Run filtered link checker (changed files)
+        run: |
+          npm -g install markdown_link_checker_sc@0.0.138
+          if [ "$(jq length ./logs/prFiles.json)" -gt 0 ]; then
+            markdown_link_checker_sc \
+              -r "$GITHUB_WORKSPACE" \
+              -d docs \
+              -e en \
+              -f ./logs/prFiles.json \
+              -i assets \
+              -u docs.px4.io/main/ \
+              > ./logs/filtered-link-check-results.md || true
+          fi
+          if [ ! -s ./logs/filtered-link-check-results.md ]; then
+            echo "No broken links found in changed files." > ./logs/filtered-link-check-results.md
+          fi
+          cat ./logs/filtered-link-check-results.md
+
+      - name: Run full link checker
+        run: |
+          markdown_link_checker_sc \
+            -r "$GITHUB_WORKSPACE" \
+            -d docs \
+            -e en \
+            -i assets \
+            -u docs.px4.io/main/ \
+            > ./logs/link-check-results.md || true
+          cat ./logs/link-check-results.md
+
+      - name: Post PR comment with link check results
+        if: github.event.pull_request.head.repo.full_name == github.repository
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:
+          header: flaws
+          path: ./logs/filtered-link-check-results.md
+
+      - name: Upload link check results
+        uses: actions/upload-artifact@v4
+        with:
+          name: link-check-results
+          path: logs/
+          retention-days: 7
+
+  # =============================================================================
+  # Build Site
+  # =============================================================================
+  build-site:
+    name: "T3: Build Site"
+    needs: [detect-changes, pr-metadata-regen, metadata-regen, link-check]
+    if: >-
+      always() &&
+      (needs.metadata-regen.result == 'success' || needs.metadata-regen.result == 'skipped') &&
+      (needs.link-check.result == 'success' || needs.link-check.result == 'skipped') &&
+      (github.event_name != 'pull_request' || needs.detect-changes.outputs.docs_changed == 'true' || needs.detect-changes.outputs.source_changed == 'true')
+    permissions:
+      contents: read
+    runs-on: [runs-on,runner=4cpu-linux-x64,image=ubuntu24-full-x64,"run-id=${{ github.run_id }}",spot=false,extras=s3-cache]
+    outputs:
+      branchname: ${{ steps.set-branch.outputs.branchname }}
+      releaseversion: ${{ steps.set-version.outputs.releaseversion }}
+    steps:
+      - uses: runs-on/action@v1
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
+
+      - name: Download metadata artifact (PR)
+        if: github.event_name == 'pull_request' && needs.pr-metadata-regen.result == 'success'
+        uses: actions/download-artifact@v4
+        with:
+          name: pr-metadata
+          path: docs/
+
+      - id: set-branch
+        run: echo "branchname=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
+
+      - id: set-version
+        run: |
+          branch="${{ steps.set-branch.outputs.branchname }}"
+          if [[ "$branch" == "main" ]]; then
+            version="main"
+          elif [[ "$branch" =~ ^release/ ]]; then
+            version="v${branch#release/}"
+          elif [[ "${{ github.event_name }}" == "pull_request" ]]; then
+            version="main"
+          else
+            echo "::error::Unsupported branch for docs deploy: $branch (expected main or release/*)"
+            exit 1
+          fi
+          echo "releaseversion=$version" >> $GITHUB_OUTPUT
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: ./docs/yarn.lock
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile --cwd ./docs
+
+      - name: Build with VitePress
+        working-directory: ./docs
+        env:
+          BRANCH_NAME: ${{ steps.set-version.outputs.releaseversion }}
+        run: |
+          npm run docs:build_ubuntu
+          touch .vitepress/dist/.nojekyll
+          npm run docs:sitemap
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: px4_docs_build
+          path: docs/.vitepress/dist/
+          retention-days: 1
+
+  # =============================================================================
+  # Deploy to AWS (push + workflow_dispatch)
+  # =============================================================================
+  deploy-aws:
+    name: "T4: Deploy"
+    needs: [metadata-regen, build-site]
+    if: >-
+      always() &&
+      needs.metadata-regen.result == 'success' &&
+      needs.build-site.result == 'success' &&
+      (github.event_name == 'push' || github.event_name == 'workflow_dispatch')
+    permissions:
+      id-token: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download Artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: px4_docs_build
+          path: ~/_book
+
+      - name: Configure AWS from OIDC
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
+          aws-region: us-west-2
+
+      - name: Sanity check AWS credentials
+        run: aws sts get-caller-identity
+
+      - name: Upload HTML with short cache
+        run: |
+          aws s3 sync ~/_book/ s3://px4-docs/${{ needs.build-site.outputs.releaseversion }}/ \
+            --delete \
+            --exclude "*" --include "*.html" \
+            --cache-control "public, max-age=60"
+
+      - name: Upload assets with long cache
+        run: |
+          aws s3 sync ~/_book/ s3://px4-docs/${{ needs.build-site.outputs.releaseversion }}/ \
+            --delete \
+            --exclude "*.html" \
+            --cache-control "public, max-age=86400, immutable"

.github/workflows/docs_crowdin_download.yml

@@ -34,13 +34,13 @@ jobs:
           upload_sources: false
           upload_translations: false
           download_translations: true
-          commit_message: New Crowdin translations - ${{ matrix.lc }}
+          commit_message: 'docs(i18n): PX4 guide translations (Crowdin) - ${{ matrix.lc }}'
           localization_branch_name: l10n_crowdin_docs_translations_${{ matrix.lc }}
           crowdin_branch_name: main
           create_pull_request: true
           pull_request_base_branch_name: 'main'
-          pull_request_title: New PX4 guide translations (Crowdin) - ${{ matrix.lc }}
-          pull_request_body: 'New PX4 guide Crowdin translations by [Crowdin GH Action](https://github.com/crowdin/github-action) for ${{ matrix.lc }}'
+          pull_request_title: 'docs(i18n): PX4 guide translations (Crowdin) - ${{ matrix.lc }}'
+          pull_request_body: 'docs(i18n): PX4 guide Crowdin translations by [Crowdin GH Action](https://github.com/crowdin/github-action) for ${{ matrix.lc }}'
           pull_request_labels: 'Documentation 📑'
           pull_request_reviewers: hamishwillee
           download_language: ${{ matrix.lc }}

.github/workflows/docs_deploy_aws.yml

@@ -1,116 +0,0 @@
-name: Docs - Deploy PX4 User Guide to AWS
-
-on:
-  push:
-    branches:
-      - "main"
-      - "release/**"
-    paths:
-      - "docs/en/**"
-      - "docs/zh/**"
-      - "docs/uk/**"
-      - "docs/ko/**"
-  pull_request:
-    paths:
-      - "docs/en/**"
-      - "docs/zh/**"
-      - "docs/uk/**"
-      - "docs/ko/**"
-
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  actions: read
-  id-token: write # for AWS OIDC
-
-concurrency:
-  group: docs-deploy
-  cancel-in-progress: false
-
-jobs:
-  build:
-    runs-on: [runs-on,runner=4cpu-linux-x64,image=ubuntu24-full-x64,"run-id=${{ github.run_id }}",spot=false,extras=s3-cache]
-    outputs:
-      branchname: ${{ steps.set-branch.outputs.branchname }}
-      releaseversion: ${{ steps.set-version.outputs.releaseversion }}
-    steps:
-      - uses: runs-on/action@v1
-
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - id: set-branch
-        run: echo "branchname=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
-
-      - id: set-version
-        run: |
-          branch="${{ steps.set-branch.outputs.branchname }}"
-          if [[ "$branch" == "main" ]]; then
-            version="main"
-          else
-            version="v${branch#release/}"
-          fi
-          echo "releaseversion=$version" >> $GITHUB_OUTPUT
-
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: npm
-          cache-dependency-path: ./docs/yarn.lock
-
-      - name: Install dependencies
-        run: yarn install --frozen-lockfile --cwd ./docs
-
-      - name: Build with VitePress
-        working-directory: ./docs
-        env:
-          BRANCH_NAME: ${{ steps.set-version.outputs.releaseversion }}
-        run: |
-          npm run docs:build_ubuntu
-          touch .vitepress/dist/.nojekyll
-          npm run docs:sitemap
-
-      - name: Upload artifact
-        if: ${{ github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged) || github.event_name == 'workflow_dispatch' }}
-        uses: actions/upload-artifact@v4
-        with:
-          name: px4_docs_build
-          path: docs/.vitepress/dist/
-          retention-days: 1
-
-  deploy:
-    if: ${{ github.event_name == 'push' || (github.event_name == 'pull_request' && github.event.pull_request.merged) || github.event_name == 'workflow_dispatch' }}
-    needs: build
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Download Artifact
-        uses: actions/download-artifact@v4
-        with:
-          name: px4_docs_build
-          path: ~/_book
-
-      - name: Configure AWS from OIDC
-        uses: aws-actions/configure-aws-credentials@v4
-        with:
-          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
-          aws-region: us-west-2
-
-      - name: Sanity check AWS credentials
-        run: aws sts get-caller-identity
-
-      - name: Upload HTML with short cache
-        run: |
-          aws s3 sync ~/_book/ s3://px4-docs/${{ needs.build.outputs.releaseversion }}/ \
-            --delete \
-            --exclude "*" --include "*.html" \
-            --cache-control "public, max-age=60"
-
-      - name: Upload assets with long cache
-        run: |
-          aws s3 sync ~/_book/ s3://px4-docs/${{ needs.build.outputs.releaseversion }}/ \
-            --delete \
-            --exclude "*.html" \
-            --cache-control "public, max-age=86400, immutable"

.github/workflows/docs_flaw_checker.yml

@@ -1,85 +0,0 @@
-name: Docs - Check for flaws in PX4 Guide Source
-# So far:
-  # Modifications of translations files
-  # Broken internal links
-
-on:
-  pull_request_target:
-    types: [opened, edited, synchronize]
-    paths:
-      - 'docs/en/**'
-
-jobs:
-  check_flaws:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-
-      - name: Install Node.js
-        uses: actions/setup-node@v3
-        with:
-          node-version: '18'
-
-      - name: Create logs directory
-        run: |
-          mkdir logs
-
-      - name: Get changed english doc files
-        id: get_changed_markdown_english
-        uses: tj-actions/changed-files@v46.0.5
-        with:
-          json: true
-          base_sha: "${{ github.event.pull_request.base.sha }}"
-          sha: "${{ github.event.pull_request.head.sha }}"
-          # Below are used to output files to a directory. May use in flaw checker.
-          # write_output_files: true
-          # output_dir: "./logs"
-          files: |
-            docs/en/**/*.md
-
-      - name: Save JSON file containing files to link check
-        run: |
-          echo "$ALL_CHANGED_FILES"
-          # echo "$ALL_CHANGED_FILES" > ./logs/prFiles.json
-          echo "$ALL_CHANGED_FILES" | sed 's/\\//g' | jq '.' > ./logs/prFiles.json
-        env:
-          ALL_CHANGED_FILES: ${{ steps.get_changed_markdown_english.outputs.all_changed_files }}
-
-      - name: Run link checker
-        id: link-check
-        run: |
-          npm -g install markdown_link_checker_sc@0.0.138
-          markdown_link_checker_sc \
-            -r "$GITHUB_WORKSPACE" \
-            -d docs \
-            -e en \
-            -f ./logs/prFiles.json \
-            -i assets \
-            -u docs.px4.io/main/ \
-            > ./logs/errorsFilteredByPrPages.md
-          mkdir -p ./pr
-          cp ./logs/errorsFilteredByPrPages.md ./pr/errorsFilteredByPrPages.md
-
-      - name: Read errorsFilteredByPrPages.md file
-        id: read-errors-by-page
-        uses: juliangruber/read-file-action@v1
-        with:
-          path: ./logs/errorsFilteredByPrPages.md
-
-      - name: Echo Errors by Page
-        run: echo "$ERRORS"
-        env:
-          ERRORS: ${{ steps.read-errors-by-page.outputs.content }}
-
-      - name: Save PR number
-        run: echo "$PR_NUMBER" > ./pr/pr_number
-        env:
-          PR_NUMBER: ${{ github.event.number }}
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: pr_number
-          path: pr/

.github/workflows/docs_pr_comment.yml

@@ -1,111 +0,0 @@
-name: Docs - Comment Workflow
-on:
-  workflow_run:
-    workflows: ["Docs - Check for flaws in PX4 Guide Source"]
-    types:
-      - completed
-
-jobs:
-  comment:
-    permissions:
-      pull-requests: write # for marocchino/sticky-pull-request-comment
-    name: Comments
-    runs-on: ubuntu-latest
-    steps:
-      - name: 'Download PR artifact'
-        uses: actions/github-script@v6
-        with:
-          script: |
-            let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
-               owner: context.repo.owner,
-               repo: context.repo.repo,
-               run_id: context.payload.workflow_run.id,
-            });
-            let matchArtifact = allArtifacts.data.artifacts.filter((artifact) => {
-              return artifact.name == "pr_number"
-            })[0];
-            let download = await github.rest.actions.downloadArtifact({
-               owner: context.repo.owner,
-               repo: context.repo.repo,
-               artifact_id: matchArtifact.id,
-               archive_format: 'zip',
-            });
-            let fs = require('fs');
-            fs.writeFileSync(`${process.env.GITHUB_WORKSPACE}/pr_number.zip`, Buffer.from(download.data));
-
-      - name: 'Unzip artifact'
-        run: unzip pr_number.zip
-
-      # Doesn't work across workflows
-      #- name: Get artifacts from flaw checker workflow
-      #  uses: actions/download-artifact@v3
-      #  with:
-      #    name: logs_and_errors
-      #    #path: ./logs
-
-      - name: Read errorsFilteredByPrPages.md file
-        id: read-errors-by-page
-        uses: juliangruber/read-file-action@v1
-        with:
-          path: ./errorsFilteredByPrPages.md
-
-      - name: Read PR number
-        id: read-error-pr-number
-        uses: juliangruber/read-file-action@v1
-        with:
-          path: ./pr_number
-
-      - name: File detail info
-        run: |
-          echo "$ERRORS"
-          echo "$PRNUM"
-        env:
-          ERRORS: ${{ steps.read-errors-by-page.outputs.content }}
-          PRNUM: ${{ steps.read-error-pr-number.outputs.content }}
-
-      - name: Create or update comment
-        id: comment_to_pr
-        uses: marocchino/sticky-pull-request-comment@v2
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          recreate: true
-          number: ${{ steps.read-error-pr-number.outputs.content }}
-          header: flaws
-          message: ${{ steps.read-errors-by-page.outputs.content || 'No flaws found' }}
-
-      #- name: Dump GitHub context
-      #  env:
-      #    GITHUB_CONTEXT: ${{ toJSON(github) }}
-      #  run: echo "$GITHUB_CONTEXT"
-
-      # Would like to do this, but it doesn't work (for me).
-      # Moving to time-based, or triggering on workflow
-      #- name: Wait for artifacts upload to succeed
-      #  uses: lewagon/wait-on-check-action@v1.3.1
-      #  with:
-      #    ref: ${{ github.ref }}
-      #    check-name: 'Archive production artifacts'
-      #    repo-token: ${{ secrets.GITHUB_TOKEN }}
-      #    wait-interval: 80
-
-      # Not needed for now - trying to trigger off the workflow
-      #- name: Sleep for 80 seconds
-      #  run: sleep 80s
-      #  shell: bash
-      #- name: Find Comment
-      #  uses: peter-evans/find-comment@v2
-      #  id: fc
-      #  with:
-      #    issue-number: ${{ steps.read-error-pr-number.outputs.content }}
-      #    comment-author: 'github-actions[bot]'
-      #    body-includes: Flaws (may be none)
-
-      #- name: Create or update comment
-      #  uses: peter-evans/create-or-update-comment@v3
-      #  with:
-      #    comment-id: ${{ steps.fc.outputs.comment-id }}
-      #    issue-number: ${{ steps.read-error-pr-number.outputs.content }}
-      #    body: |
-      #      Flaws (may be none)
-      #      ${{ steps.read-errors-by-page.outputs.content }}
-      #    edit-mode: replace

.github/workflows/ekf_functional_change_indicator.yml

@@ -15,21 +15,21 @@ concurrency:
 jobs:
   unit_tests:
     runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
 
-    - name: main test
-      uses: addnab/docker-run-action@v3
-      with:
-        image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
-        options: -v ${{ github.workspace }}:/workspace
+    container:
+      image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: main test
         run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
+          cd "$GITHUB_WORKSPACE"
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
           make tests TESTFILTER=EKF
 
-    - name: Check if there is a functional change
-      run: git diff --exit-code
-      working-directory: src/modules/ekf2/test/change_indication
+      - name: Check if there is a functional change
+        run: git diff --exit-code
+        working-directory: src/modules/ekf2/test/change_indication

.github/workflows/ekf_update_change_indicator.yml

@@ -8,40 +8,47 @@ on:
 jobs:
   unit_tests:
     runs-on: ubuntu-latest
+
+    container:
+      image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
+
     env:
       GIT_COMMITTER_EMAIL: bot@px4.io
       GIT_COMMITTER_NAME: PX4BuildBot
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
 
-    - name: main test
-      uses: addnab/docker-run-action@v3
-      with:
-        image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
-        options: -v ${{ github.workspace }}:/workspace
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: main test
         run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
+          cd "$GITHUB_WORKSPACE"
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
           make tests TESTFILTER=EKF
 
-    - name: Check if there exists diff and save result in variable
-      id: diff-check
-      run: echo "CHANGE_INDICATED=$(git diff --exit-code --output=/dev/null || echo $?)" >> $GITHUB_OUTPUT
-      working-directory: src/modules/ekf2/test/change_indication
+      - name: Check if there exists diff and save result in variable
+        id: diff-check
+        working-directory: src/modules/ekf2/test/change_indication
+        run: |
+          if git diff --quiet; then
+            echo "CHANGE_INDICATED=false" >> $GITHUB_OUTPUT
+          else
+            echo "CHANGE_INDICATED=true" >> $GITHUB_OUTPUT
+          fi
 
-    - name: auto-commit any changes to change indication
-      uses: stefanzweifel/git-auto-commit-action@v4
-      with:
-        file_pattern: 'src/modules/ekf2/test/change_indication/*.csv'
-        commit_user_name: ${GIT_COMMITTER_NAME}
-        commit_user_email: ${GIT_COMMITTER_EMAIL}
-        commit_message: |
-          '[AUTO COMMIT] update change indication'
+      - name: auto-commit any changes to change indication
+        if: steps.diff-check.outputs.CHANGE_INDICATED == 'true'
+        uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          file_pattern: 'src/modules/ekf2/test/change_indication/*.csv'
+          commit_user_name: ${{ env.GIT_COMMITTER_NAME }}
+          commit_user_email: ${{ env.GIT_COMMITTER_EMAIL }}
+          commit_message: |
+            [AUTO COMMIT] update change indication
 
-          See .github/workflopws/ekf_update_change_indicator.yml for more details
+            See .github/workflows/ekf_update_change_indicator.yml for more details
 
-    - name: if there is a functional change, fail check
-      if: ${{ steps.diff-check.outputs.CHANGE_INDICATED }}
-      run: exit 1
+      - name: if there is a functional change, fail check
+        if: steps.diff-check.outputs.CHANGE_INDICATED == 'true'
+        run: exit 1

.github/workflows/mavros_mission_tests.yml

@@ -19,25 +19,27 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
+
     strategy:
       fail-fast: false
-      matrix:
-        config:
-          - {vehicle: "iris",          mission: "MC_mission_box"}
 
     steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
-    - name: Build SITL and Run Tests
-      uses: addnab/docker-run-action@v3
-      with:
-        image: px4io/px4-dev-ros-melodic:2021-09-08
-        options: -v ${{ github.workspace }}:/workspace
+      - name: Build SITL and Run Tests (inside old ROS container)
         run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
-          make px4_sitl_default
-          make px4_sitl_default sitl_gazebo-classic
-          ./test/rostest_px4_run.sh mavros_posix_test_mission.test mission:=${{matrix.config.mission}} vehicle:=${{matrix.config.vehicle}}
+          docker run --rm \
+            -v "${GITHUB_WORKSPACE}:/workspace" \
+            -w /workspace \
+            px4io/px4-dev-ros-melodic:2021-09-08 \
+            bash -c '
+              git config --global --add safe.directory /workspace
+              make px4_sitl_default
+              make px4_sitl_default sitl_gazebo-classic
+              ./test/rostest_px4_run.sh \
+                mavros_posix_test_mission.test \
+                mission:=MC_mission_box \
+                vehicle:=iris
+            '

.github/workflows/mavros_offboard_tests.yml

@@ -19,27 +19,26 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
-    env:
-      ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+
     strategy:
       fail-fast: false
-      matrix:
-        config:
-          - {test_file: "mavros_posix_tests_offboard_posctl.test",    vehicle: "iris"}
 
     steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
-    - name: Build PX4 and Run Tests
-      uses: addnab/docker-run-action@v3
-      with:
-        image: px4io/px4-dev-ros-melodic:2021-09-08
-        options: -v ${{ github.workspace }}:/workspace
+      - name: Build SITL and Run Tests (inside old ROS container)
         run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
-          make px4_sitl_default
-          make px4_sitl_default sitl_gazebo-classic
-          ./test/rostest_px4_run.sh ${{matrix.config.test_file}} vehicle:=${{matrix.config.vehicle}}
+          docker run --rm \
+            -v "${GITHUB_WORKSPACE}:/workspace" \
+            -w /workspace \
+            px4io/px4-dev-ros-melodic:2021-09-08 \
+            bash -c '
+              git config --global --add safe.directory /workspace
+              make px4_sitl_default
+              make px4_sitl_default sitl_gazebo-classic
+              ./test/rostest_px4_run.sh \
+                mavros_posix_tests_offboard_posctl.test \
+                vehicle:=iris
+            '

.github/workflows/nuttx_env_config.yml

@@ -19,27 +19,28 @@ concurrency:
 jobs:
   build:
     runs-on: ubuntu-latest
+
+    container:
+      image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
+
     strategy:
       matrix:
-        config: [
-          px4_fmu-v5_default,
-          ]
+        config:
+          - px4_fmu-v5_default
 
     steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
-    - name: Build PX4 and Run Test [${{ matrix.config }}]
-      uses: addnab/docker-run-action@v3
-      with:
-        image: px4io/px4-dev:v1.16.0-rc1-258-g0369abd556
-        options: -v ${{ github.workspace }}:/workspace
+      - name: Build PX4 and Run Test [${{ matrix.config }}]
         run: |
-          cd /workspace
-          git config --global --add safe.directory /workspace
-          export PX4_EXTRA_NUTTX_CONFIG="CONFIG_NSH_LOGIN_PASSWORD=\"test\";CONFIG_NSH_CONSOLE_LOGIN=y"
+          cd "$GITHUB_WORKSPACE"
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+          export PX4_EXTRA_NUTTX_CONFIG='CONFIG_NSH_LOGIN_PASSWORD="test";CONFIG_NSH_CONSOLE_LOGIN=y'
           echo "PX4_EXTRA_NUTTX_CONFIG: $PX4_EXTRA_NUTTX_CONFIG"
+
           make ${{ matrix.config }} nuttx_context
+
           echo "Check that the config option is set"
           grep CONFIG_NSH_LOGIN_PASSWORD build/${{ matrix.config }}/NuttX/nuttx/.config

.github/workflows/sitl_tests.yml

@@ -33,8 +33,10 @@ jobs:
       matrix:
         config:
           - {model: "iris",          latitude:  "59.617693", longitude: "-151.145316", altitude:  "48", build_type: "RelWithDebInfo" } # Alaska
-          - {model: "tailsitter" ,   latitude:  "29.660316", longitude:  "-82.316658", altitude:  "30", build_type: "RelWithDebInfo" } # Florida
-          - {model: "standard_vtol", latitude:  "47.397742", longitude:    "8.545594", altitude: "488", build_type: "Coverage" } # Zurich
+          # VTOL/tailsitter disabled: persistent flaky CI failures (timeouts, erratic
+          # transitions). Re-enable once the test infrastructure is stabilized.
+          # - {model: "tailsitter" ,   latitude:  "29.660316", longitude:  "-82.316658", altitude:  "30", build_type: "RelWithDebInfo" } # Florida
+          # - {model: "standard_vtol", latitude:  "47.397742", longitude:    "8.545594", altitude: "488", build_type: "Coverage" } # Zurich
 
     steps:
       - uses: actions/checkout@v4

.gitignore

@@ -109,3 +109,6 @@ src/systemcmds/topic_listener/listener_generated.cpp
 # colcon
 log/
 keys/
+
+# metadata
+_emscripten_sdk/

.gitmodules

@@ -109,3 +109,9 @@
 [submodule "src/lib/rl_tools/rl_tools"]
 	path = src/lib/rl_tools/rl_tools
 	url = https://github.com/rl-tools/rl-tools.git
+[submodule "libmodal-json"]
+	path = boards/modalai/voxl2/src/lib/mpa/libmodal-json
+	url = https://gitlab.com/voxl-public/voxl-sdk/core-libs/libmodal-json.git
+[submodule "libmodal-pipe"]
+	path = boards/modalai/voxl2/src/lib/mpa/libmodal-pipe
+	url = https://gitlab.com/voxl-public/voxl-sdk/core-libs/libmodal-pipe.git

.vscode/cmake-variants.yaml

@@ -336,6 +336,11 @@ CONFIG:
       buildType: MinSizeRel
       settings:
         CONFIG: cuav_x25-evo_default
+    cuav_x25-super_default:
+      short: cuav_x25-super
+      buildType: MinSizeRel
+      settings:
+        CONFIG: cuav_x25-super_default
     cubepilot_cubeorange_test:
       short: cubepilot_cubeorange
       buildType: MinSizeRel

CITATION.cff

@@ -0,0 +1,27 @@
+cff-version: 1.2.0
+title: "PX4 Autopilot"
+message: "If you use PX4 in your research, please cite it using this metadata."
+type: software
+authors:
+  - family-names: Meier
+    given-names: Lorenz
+  - name: "The PX4 Contributors"
+repository-code: "https://github.com/PX4/PX4-Autopilot"
+url: "https://px4.io"
+abstract: >-
+  PX4 is an open-source autopilot stack for drones and
+  unmanned vehicles. It supports multirotors, fixed-wing,
+  VTOL, rovers, and many more platforms. PX4 runs on both
+  RTOS and POSIX-compatible operating systems.
+keywords:
+  - autopilot
+  - drone
+  - uav
+  - flight-controller
+  - robotics
+  - ros2
+license: BSD-3-Clause
+identifiers:
+  - type: doi
+    value: "10.5281/zenodo.595432"
+    description: "Zenodo concept DOI (resolves to latest version)"

CONTRIBUTING.md

@@ -1,44 +1,170 @@
-# Contributing to PX4 Firmware
+# Contributing to PX4-Autopilot
 
-We follow the [Github flow](https://guides.github.com/introduction/flow/) development model.
+We follow the [GitHub flow](https://guides.github.com/introduction/flow/) development model.
 
-### Fork the project, then clone your repo
+## Fork the project, then clone your repo
 
-First [fork and clone](https://help.github.com/articles/fork-a-repo) the project project.
+First [fork and clone](https://help.github.com/articles/fork-a-repo) the project.
 
-### Create a feature branch
+## Create a feature branch
 
-*Always* branch off main for new features.
+Always branch off `main` for new features.
 
 ```
 git checkout -b mydescriptivebranchname
 ```
 
-### Edit and build the code
+## Edit and build the code
 
-The [developer guide](https://docs.px4.io/main/en/development/development.html) explains how to set up the development environment on Mac OS, Linux or Windows. Please take note of our [coding style](https://docs.px4.io/main/en/contribute/code.html) when editing files.
+The [developer guide](https://docs.px4.io/main/en/development/development.html) explains how to set up the development environment on Mac OS, Linux or Windows.
 
-### Commit your changes
+### Coding standards
 
-Always write descriptive commit messages and add a fixes or relates note to them with an [issue number](https://github.com/px4/Firmware/issues) (Github will link these then conveniently)
+All C/C++ code must follow the [PX4 coding style](https://docs.px4.io/main/en/contribute/code.html). Formatting is enforced by [astyle](http://astyle.sourceforge.net/) in CI (`make check_format`). Code quality checks run via [clang-tidy](https://clang.llvm.org/extra/clang-tidy/). Pull requests that fail either check will not be merged.
 
-**Example:**
+Python code is checked with [mypy](https://mypy-lang.org/) and [flake8](https://flake8.pycqa.org/).
+
+## Commit message convention
+
+PX4 uses [conventional commits](https://www.conventionalcommits.org/) for all commit messages and PR titles.
+
+### Format
 
 ```
-Change how the attitude controller works
-
-- Fixes rate feed forward
-- Allows a local body rate override
-
-Fixes issue #123
+type(scope): short description of the change
 ```
 
-### Test your changes
+| Part | Rule |
+|------|------|
+| **type** | Category of change (see types table below) |
+| **scope** | The module, driver, board, or area of PX4 affected |
+| **`!`** (optional) | Append before `:` to mark a breaking change |
+| **description** | What the change does, at least 5 characters, written in imperative form |
 
-Since we care about safety, we will regularly ask you for test results. Best is to do a test flight (or bench test where it applies) and upload the logfile from it (on the microSD card in the logs directory) to Google Drive or Dropbox and share the link.
+### Types
 
-### Push your changes
+| Type | Description |
+|------|-------------|
+| `feat` | A new feature |
+| `fix` | A bug fix |
+| `docs` | Documentation only changes |
+| `style` | Formatting, whitespace, no code change |
+| `refactor` | Code change that neither fixes a bug nor adds a feature |
+| `perf` | Performance improvement |
+| `test` | Adding or correcting tests |
+| `build` | Build system or external dependencies |
+| `ci` | CI configuration files and scripts |
+| `chore` | Other changes that don't modify src or test files |
+| `revert` | Reverts a previous commit |
 
-Push changes to your repo and send a [pull request](https://github.com/PX4/Firmware/compare/).
+### Scopes
+
+The scope identifies which part of PX4 is affected. Common scopes:
+
+| Scope | Area |
+|-------|------|
+| `ekf2` | Extended Kalman Filter (state estimation) |
+| `mavlink` | MAVLink messaging protocol |
+| `commander` | Commander and mode management |
+| `navigator` | Mission, RTL, Land, and other navigation modes |
+| `sensors` | Sensor drivers and processing |
+| `drivers` | Hardware drivers |
+| `boards/px4_fmu-v6x` | Board-specific changes (use the board name) |
+| `mc_att_control` | Multicopter attitude control |
+| `mc_pos_control` | Multicopter position control |
+| `fw_att_control` | Fixed-wing attitude control |
+| `vtol` | VTOL-specific logic |
+| `actuators` | Mixer and actuator output |
+| `battery` | Battery monitoring and estimation |
+| `logger` | On-board logging |
+| `param` | Parameter system |
+| `simulation` | SITL, Gazebo, SIH |
+| `ci` | Continuous integration and workflows |
+| `docs` | Documentation |
+| `build` | CMake, toolchain, build system |
+| `uorb` | Inter-module messaging |
+
+For changes spanning multiple subsystems, use the primary one affected. Look at the directory path of the files you changed to find the right scope: `src/modules/ekf2/` uses `ekf2`, `src/drivers/imu/` uses `drivers/imu`, `.github/workflows/` uses `ci`.
+
+### Breaking changes
+
+Append `!` before the colon to indicate a breaking change:
+
+```
+feat(ekf2)!: remove deprecated height fusion API
+```
+
+### Good commit messages
+
+```
+feat(ekf2): add height fusion timeout
+fix(mavlink): correct BATTERY_STATUS_V2 parsing
+refactor(navigator): simplify RTL altitude logic
+ci(workflows): migrate to reusable workflows
+docs(ekf2): update tuning guide
+feat(boards/px4_fmu-v6x)!: remove deprecated driver API
+perf(mc_rate_control): reduce loop latency
+```
+
+### Commits to avoid
+
+These will be flagged by CI and should be squashed or reworded before merging:
+
+```
+fix                                    # too vague, no type or scope
+update                                 # too vague, no type or scope
+ekf2: fix something                   # missing type prefix
+apply suggestions from code review     # squash into parent commit
+do make format                         # squash into parent commit
+WIP: trying something                  # not ready for main
+oops                                   # not descriptive
+```
+
+### PR titles
+
+The PR title follows the same `type(scope): description` format. This is enforced by CI and is especially important because the PR title becomes the commit message when a PR is squash-merged.
+
+### Merge policy
+
+Commits should be atomic and independently revertable. Squash at reviewer discretion for obvious cases (multiple WIP commits, messy review-response history). When your commits are clean and logical, they will be preserved as individual commits on `main`.
+
+### Cleaning up commits
+
+If CI flags your commit messages, you can fix them with an interactive rebase:
+
+```bash
+# Squash all commits into one:
+git rebase -i HEAD~N   # replace N with the number of commits
+# mark all commits except the first as 'squash' or 'fixup'
+# reword the remaining commit to follow the format
+git push --force-with-lease
+
+# Or reword specific commits:
+git rebase -i HEAD~N
+# mark the bad commits as 'reword'
+git push --force-with-lease
+```
+
+## Test your changes
+
+PX4 is safety-critical software. All contributions must include adequate testing where practical:
+
+- **New features** must include unit tests and/or integration tests that exercise the new functionality, where practical. Hardware-dependent changes that cannot be tested in SITL should include bench test or flight test evidence.
+- **Bug fixes** must include a regression test where practical. When automated testing is not feasible (hardware-specific issues, race conditions, etc.), provide a link to a flight log demonstrating the fix and the reproduction steps for the original bug.
+- **Reviewers** will verify that tests or test evidence exist before approving a pull request.
+
+### Types of tests
+
+| Test type | When to use | How to run |
+|-----------|-------------|------------|
+| **Unit tests** (gtest) | Module-level logic, math, parsing | `make tests` |
+| **SITL integration tests** (MAVSDK) | Flight behavior, failsafes, missions | `test/mavsdk_tests/` |
+| **Bench tests / flight logs** | Hardware-dependent changes | Upload logs to [Flight Review](https://logs.px4.io) |
+
+Since we care about safety, we will regularly ask you for test results. Best is to do a test flight (or bench test where it applies) and upload the log file from it (on the microSD card in the logs directory) to Google Drive or Dropbox and share the link.
+
+## Push your changes
+
+Push changes to your repo and send a [pull request](https://github.com/PX4/PX4-Autopilot/compare/).
 
 Make sure to provide some testing feedback and if possible the link to a flight log file. Upload flight log files to [Flight Review](http://logs.px4.io) and link the resulting report.

Makefile

@@ -332,6 +332,7 @@ bootloaders_update: \
 	cuav_7-nano_bootloader \
 	cuav_fmu-v6x_bootloader \
 	cuav_x25-evo_bootloader \
+	cuav_x25-super_bootloader \
 	cubepilot_cubeorange_bootloader \
 	cubepilot_cubeorangeplus_bootloader \
 	hkust_nxt-dual_bootloader \
@@ -412,7 +413,7 @@ tests:
 	$(call cmake-build,px4_sitl_test)
 
 # work around lcov bug #316; remove once lcov is fixed (see https://github.com/linux-test-project/lcov/issues/316)
-LCOBUG = --ignore-errors mismatch
+LCOBUG = --ignore-errors mismatch,negative
 tests_coverage:
 	@$(MAKE) clean
 	@$(MAKE) --no-print-directory tests PX4_CMAKE_BUILD_TYPE=Coverage
@@ -492,13 +493,29 @@ px4_sitl_default-clang:
 	@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && cmake "$(SRC_DIR)" $(CMAKE_ARGS) -G"$(PX4_CMAKE_GENERATOR)" -DCONFIG=px4_sitl_default -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
 	@$(PX4_MAKE) -C "$(SRC_DIR)"/build/px4_sitl_default-clang
 
+# Paths to exclude from clang-tidy (auto-generated from .gitmodules + manual additions):
+# - All submodules (external code we consume, not edit)
+# - Test code (allowed looser style)
+# - Example code (educational, not production)
+# - Vendored third-party code (e.g., CMSIS_5)
+# - NuttX-only drivers excluded at CMake level (mcp_common); I2C-dependent libs excluded here (smbus)
+# - GPIO excluded here (NuttX platform headers)
+# - Emscripten failsafe web build: source path + Unity build path (failsafe_test.dir)
+#   because CMake Unity Builds merge sources into a generated .cxx under build/
+#
+# To add manual exclusions, append to CLANG_TIDY_EXCLUDE_EXTRA below.
+# Submodules are automatically excluded - no action needed when adding new ones.
+CLANG_TIDY_SUBMODULES := $(shell git config --file .gitmodules --get-regexp path | awk '{print $$2}' | tr '\n' '|' | sed 's/|$$//')
+CLANG_TIDY_EXCLUDE_EXTRA := src/systemcmds/tests|src/examples|src/modules/gyro_fft/CMSIS_5|src/lib/drivers/smbus|src/drivers/gpio|src/modules/commander/failsafe/emscripten|failsafe_test\.dir|\.pb\.cc
+CLANG_TIDY_EXCLUDE := $(CLANG_TIDY_SUBMODULES)|$(CLANG_TIDY_EXCLUDE_EXTRA)
+
 clang-tidy: px4_sitl_default-clang
-	@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -p .
+	@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -exclude="$(CLANG_TIDY_EXCLUDE)" -p .
 
 # to automatically fix a single check at a time, eg modernize-redundant-void-arg
 #  % run-clang-tidy-4.0.py -fix -j4 -checks=-\*,modernize-redundant-void-arg -p .
 clang-tidy-fix: px4_sitl_default-clang
-	@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -fix -p .
+	@cd "$(SRC_DIR)"/build/px4_sitl_default-clang && "$(SRC_DIR)"/Tools/run-clang-tidy.py -header-filter=".*\.hpp" -j$(j_clang_tidy) -exclude="$(CLANG_TIDY_EXCLUDE)" -fix -p .
 
 # TODO: Fix cppcheck errors then try --enable=warning,performance,portability,style,unusedFunction or --enable=all
 cppcheck: px4_sitl_default
@@ -598,3 +615,10 @@ failsafe_web:
 run_failsafe_web_server: failsafe_web
 	@cd build/px4_sitl_default_failsafe_web && \
 		python3 -m http.server
+
+# Generate reference documentation for uORB messages
+.PHONY: msg_docs
+msg_docs:
+	$(call colorecho,'Generating uORB message reference docs')
+	@mkdir -p build/msg_docs
+	@./Tools/msg/generate_msg_docs.py -d build/msg_docs

README.md

@@ -1,62 +1,110 @@
-# PX4 Drone Autopilot
+<p align="center">
+  <a href="https://px4.io">
+    <img src="docs/assets/site/px4_logo.svg" alt="PX4 Autopilot" width="240">
+  </a>
+</p>
 
-[![Releases](https://img.shields.io/github/release/PX4/PX4-Autopilot.svg)](https://github.com/PX4/PX4-Autopilot/releases) [![DOI](https://zenodo.org/badge/22634/PX4/PX4-Autopilot.svg)](https://zenodo.org/badge/latestdoi/22634/PX4/PX4-Autopilot)
+<p align="center">
+  <em>The autopilot stack the industry builds on.</em>
+</p>
 
-[![Build Targets](https://github.com/PX4/PX4-Autopilot/actions/workflows/build_all_targets.yml/badge.svg?branch=main)](https://github.com/PX4/PX4-Autopilot/actions/workflows/build_all_targets.yml) [![SITL Tests](https://github.com/PX4/PX4-Autopilot/workflows/SITL%20Tests/badge.svg?branch=master)](https://github.com/PX4/PX4-Autopilot/actions?query=workflow%3A%22SITL+Tests%22)
+<p align="center">
+  <a href="https://github.com/PX4/PX4-Autopilot/releases"><img src="https://img.shields.io/github/release/PX4/PX4-Autopilot.svg" alt="Releases"></a>
+  <a href="https://www.bestpractices.dev/projects/6520"><img src="https://www.bestpractices.dev/projects/6520/badge" alt="OpenSSF Best Practices"></a>
+  <a href="https://zenodo.org/badge/latestdoi/22634/PX4/PX4-Autopilot"><img src="https://zenodo.org/badge/22634/PX4/PX4-Autopilot.svg" alt="DOI"></a>
+  <a href="https://github.com/PX4/PX4-Autopilot/actions/workflows/build_all_targets.yml"><img src="https://github.com/PX4/PX4-Autopilot/actions/workflows/build_all_targets.yml/badge.svg?branch=main" alt="Build Targets"></a>
+  <a href="https://discord.gg/dronecode"><img src="https://discordapp.com/api/guilds/1022170275984457759/widget.png?style=shield" alt="Discord"></a>
+</p>
 
-[![Discord Shield](https://discordapp.com/api/guilds/1022170275984457759/widget.png?style=shield)](https://discord.gg/dronecode)
+---
 
-This repository holds the [PX4](http://px4.io) flight control solution for drones, with the main applications located in the [src/modules](https://github.com/PX4/PX4-Autopilot/tree/main/src/modules) directory. It also contains the PX4 Drone Middleware Platform, which provides drivers and middleware to run drones.
+## About
 
-PX4 is highly portable, OS-independent and supports Linux, NuttX and MacOS out of the box.
+PX4 is an open-source autopilot stack for drones and unmanned vehicles. It supports multirotors, fixed-wing, VTOL, rovers, and many more experimental platforms from racing quads to industrial survey aircraft. It runs on [NuttX](https://nuttx.apache.org/), Linux, and macOS. Licensed under [BSD 3-Clause](LICENSE).
 
-* Official Website: http://px4.io (License: BSD 3-clause, [LICENSE](https://github.com/PX4/PX4-Autopilot/blob/main/LICENSE))
-* [Supported airframes](https://docs.px4.io/main/en/airframes/airframe_reference.html) ([portfolio](https://px4.io/ecosystem/commercial-systems/)):
-  * [Multicopters](https://docs.px4.io/main/en/frames_multicopter/)
-  * [Fixed wing](https://docs.px4.io/main/en/frames_plane/)
-  * [VTOL](https://docs.px4.io/main/en/frames_vtol/)
-  * [Autogyro](https://docs.px4.io/main/en/frames_autogyro/)
-  * [Rover](https://docs.px4.io/main/en/frames_rover/)
-  * many more experimental types (Blimps, Boats, Submarines, High Altitude Balloons, Spacecraft, etc)
-* Releases: [Downloads](https://github.com/PX4/PX4-Autopilot/releases)
+## Why PX4
 
-## Releases
+**Modular architecture.** PX4 is built around [uORB](https://docs.px4.io/main/en/middleware/uorb.html), a [DDS](https://docs.px4.io/main/en/middleware/uxrce_dds.html)-compatible publish/subscribe middleware. Modules are fully parallelized and thread safe. You can build custom configurations and trim what you don't need.
 
-Release notes and supporting information for PX4 releases can be found on the [Developer Guide](https://docs.px4.io/main/en/releases/).
+**Wide hardware support.** PX4 runs on a wide range of [autopilot boards](https://docs.px4.io/main/en/flight_controller/) and supports an extensive set of sensors, telemetry radios, and actuators through the [Pixhawk](https://pixhawk.org/) ecosystem.
 
-## Building a PX4 based drone, rover, boat or robot
+**Developer friendly.** First-class support for [MAVLink](https://mavlink.io/) and [DDS / ROS 2](https://docs.px4.io/main/en/ros2/) integration. Comprehensive [SITL simulation](https://docs.px4.io/main/en/simulation/), hardware-in-the-loop testing, and [log analysis](https://docs.px4.io/main/en/log/flight_log_analysis.html) tools. An active developer community on [Discord](https://discord.gg/dronecode) and the [weekly dev call](https://docs.px4.io/main/en/contribute/).
 
-The [PX4 User Guide](https://docs.px4.io/main/en/) explains how to assemble [supported vehicles](https://docs.px4.io/main/en/airframes/airframe_reference.html) and fly drones with PX4. See the [forum and chat](https://docs.px4.io/main/en/#getting-help) if you need help!
+**Vendor neutral governance.** PX4 is hosted under the [Dronecode Foundation](https://www.dronecode.org/), part of the Linux Foundation. Business-friendly BSD-3 license. No single vendor controls the roadmap.
 
+## Supported Vehicles
 
-## Changing Code and Contributing
+<table>
+  <tr>
+    <td align="center">
+      <a href="https://docs.px4.io/main/en/frames_multicopter/">
+        <img src="docs/assets/airframes/types/QuadRotorX.svg" width="50" alt="Multicopter"><br>
+        <sub>Multicopter</sub>
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://docs.px4.io/main/en/frames_plane/">
+        <img src="docs/assets/airframes/types/Plane.svg" width="50" alt="Fixed Wing"><br>
+        <sub>Fixed Wing</sub>
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://docs.px4.io/main/en/frames_vtol/">
+        <img src="docs/assets/airframes/types/VTOLPlane.svg" width="50" alt="VTOL"><br>
+        <sub>VTOL</sub>
+      </a>
+    </td>
+    <td align="center">
+      <a href="https://docs.px4.io/main/en/frames_rover/">
+        <img src="docs/assets/airframes/types/Rover.svg" width="50" alt="Rover"><br>
+        <sub>Rover</sub>
+      </a>
+    </td>
+  </tr>
+</table>
 
-This [Developer Guide](https://docs.px4.io/main/en/development/development.html) is for software developers who want to modify the flight stack and middleware (e.g. to add new flight modes), hardware integrators who want to support new flight controller boards and peripherals, and anyone who wants to get PX4 working on a new (unsupported) airframe/vehicle.
+<sub>…and many more: helicopters, autogyros, airships, submarines, boats, and other experimental platforms. These frames have basic support but are not part of the regular flight-test program. See the <a href="https://docs.px4.io/main/en/airframes/airframe_reference.html">full airframe reference</a>.</sub>
 
-Developers should read the [Guide for Contributions](https://docs.px4.io/main/en/contribute/).
-See the [forum and chat](https://docs.px4.io/main/en/#getting-help) if you need help!
+## Quick Start
 
+```bash
+git clone https://github.com/PX4/PX4-Autopilot.git --recursive
+cd PX4-Autopilot
+make px4_sitl
+```
 
-## Weekly Dev Call
+> [!NOTE]
+> See the [Development Guide](https://docs.px4.io/main/en/development/development.html) for toolchain setup and build options.
 
-The PX4 Dev Team syncs up on a [weekly dev call](https://docs.px4.io/main/en/contribute/).
+## Documentation & Resources
 
-> **Note** The dev call is open to all interested developers (not just the core dev team). This is a great opportunity to meet the team and contribute to the ongoing development of the platform. It includes a QA session for newcomers. All regular calls are listed in the [Dronecode calendar](https://www.dronecode.org/calendar/).
+| Resource | Description |
+| --- | --- |
+| [User Guide](https://docs.px4.io/main/en/) | Build, configure, and fly with PX4 |
+| [Developer Guide](https://docs.px4.io/main/en/development/development.html) | Modify the flight stack, add peripherals, port to new hardware |
+| [Airframe Reference](https://docs.px4.io/main/en/airframes/airframe_reference.html) | Full list of supported frames |
+| [Autopilot Hardware](https://docs.px4.io/main/en/flight_controller/) | Compatible flight controllers |
+| [Release Notes](https://docs.px4.io/main/en/releases/) | What's new in each release |
+| [Contribution Guide](https://docs.px4.io/main/en/contribute/) | How to contribute to PX4 |
 
+## Community
 
-## Maintenance Team
+- **Weekly Dev Call** — open to all developers ([Dronecode calendar](https://www.dronecode.org/calendar/))
+- **Discord** — [Join the Dronecode server](https://discord.gg/dronecode)
+- **Discussion Forum** — [PX4 Discuss](https://discuss.px4.io/)
+- **Maintainers** — see [`MAINTAINERS.md`](MAINTAINERS.md)
+- **Contributor Stats** — [LFX Insights](https://insights.lfx.linuxfoundation.org/foundation/dronecode)
 
-See the latest list of maintainers on [MAINTAINERS](MAINTAINERS.md) file at the root of the project.
+## Contributing
 
-For the latest stats on contributors please see the latest stats for the Dronecode ecosystem in our project dashboard under [LFX Insights](https://insights.lfx.linuxfoundation.org/foundation/dronecode). For information on how to update your profile and affiliations please see the following support link on how to [Complete Your LFX Profile](https://docs.linuxfoundation.org/lfx/my-profile/complete-your-lfx-profile). Dronecode publishes a yearly snapshot of contributions and achievements on its [website under the Reports section](https://dronecode.org).
+We welcome contributions of all kinds — bug reports, documentation, new features, and code reviews. Please read the [Contribution Guide](https://docs.px4.io/main/en/contribute/) to get started.
 
-## Supported Hardware
+## Governance
 
-For the most up to date information, please visit [PX4 User Guide > Autopilot Hardware](https://docs.px4.io/main/en/flight_controller/).
+The PX4 Autopilot project is hosted by the [Dronecode Foundation](https://www.dronecode.org/), a [Linux Foundation](https://www.linuxfoundation.org/) Collaborative Project. Dronecode holds all PX4 trademarks and serves as the project's legal guardian, ensuring vendor-neutral stewardship — no single company owns the name or controls the roadmap. The source code is licensed under the [BSD 3-Clause](LICENSE) license, so you are free to use, modify, and distribute it in your own projects.
 
-## Project Governance
-
-The PX4 Autopilot project including all of its trademarks is hosted under [Dronecode](https://www.dronecode.org/), part of the Linux Foundation.
-
-<a href="https://www.dronecode.org/" style="padding:20px" ><img src="https://dronecode.org/wp-content/uploads/sites/24/2020/08/dronecode_logo_default-1.png" alt="Dronecode Logo" width="110px"/></a>
-<div style="padding:10px">&nbsp;</div>
+<p align="center">
+  <a href="https://www.dronecode.org/">
+    <img src="docs/assets/site/dronecode_logo.svg" alt="Dronecode Logo" width="180">
+  </a>
+</p>

ROMFS/px4fmu_common/init.d-posix/airframes/10046_sihsim_quadx_vision

@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# @name QuadrotorX SITL for SIH (Swarm)
+#
+# @type Quadrotor
+#
+# @maintainer Ramon Roche <mrpollo@gmail.com>
+#
+
+. ${R}etc/init.d/rc.mc_defaults
+
+PX4_SIMULATOR=${PX4_SIMULATOR:=sihsim}
+PX4_SIM_MODEL=${PX4_SIM_MODEL:=quadx}
+
+# Simulated sensors: GPS + baro + mag
+param set-default SENS_EN_GPSSIM 1
+param set-default SENS_EN_BAROSIM 1
+param set-default SENS_EN_MAGSIM 1
+
+# Square quadrotor X PX4 numbering
+param set-default CA_ROTOR_COUNT 4
+param set-default CA_ROTOR0_PX 1
+param set-default CA_ROTOR0_PY 1
+param set-default CA_ROTOR1_PX -1
+param set-default CA_ROTOR1_PY -1
+param set-default CA_ROTOR2_PX 1
+param set-default CA_ROTOR2_PY -1
+param set-default CA_ROTOR2_KM -0.05
+param set-default CA_ROTOR3_PX -1
+param set-default CA_ROTOR3_PY 1
+param set-default CA_ROTOR3_KM -0.05
+
+param set-default PWM_MAIN_FUNC1 101
+param set-default PWM_MAIN_FUNC2 102
+param set-default PWM_MAIN_FUNC3 103
+param set-default PWM_MAIN_FUNC4 104
+
+param set SIH_VEHICLE_TYPE 0

ROMFS/px4fmu_common/init.d-posix/airframes/4003_gz_rc_cessna

@@ -44,8 +44,6 @@ param set-default FW_T_SINK_MIN 3
 
 param set-default FW_W_EN 1
 
-param set-default FD_ESCS_EN 0
-
 param set-default MIS_TAKEOFF_ALT 30
 
 param set-default NAV_ACC_RAD 15

ROMFS/px4fmu_common/init.d-posix/airframes/4004_gz_standard_vtol

@@ -101,6 +101,6 @@ param set-default NAV_ACC_RAD 5
 param set-default NAV_DLL_ACT 2
 
 param set-default VT_FWD_THRUST_EN 4
+param set-default VT_PITCH_MIN -5
 param set-default VT_F_TRANS_THR 1
 param set-default VT_TYPE 2
-param set-default FD_ESCS_EN 0

ROMFS/px4fmu_common/init.d-posix/airframes/60002_gz_uuv_bluerov2_heavy

@@ -26,7 +26,6 @@ param set-default SENS_EN_GPSSIM 1
 param set-default SENS_EN_BAROSIM 1
 param set-default SENS_EN_MAGSIM 1
 param set-default COM_ARM_CHK_ESCS 0  # We don't have ESCs
-param set-default FD_ESCS_EN 0 # We don't have ESCs - but maybe we need this later?
 
 # Set proper failsafes
 param set-default COM_ACT_FAIL_ACT 0
@@ -42,23 +41,21 @@ param set-default FD_FAIL_R 0
 param set-default CA_ROTOR_COUNT 8
 param set-default CA_R_REV 255
 
-param set-default CA_ROTOR0_AX -1
-param set-default CA_ROTOR0_AY 1
+param set-default CA_ROTOR0_AX 1
+param set-default CA_ROTOR0_AY -1
 param set-default CA_ROTOR0_AZ 0
 param set-default CA_ROTOR0_KM 0
 param set-default CA_ROTOR0_PX 0.14
 param set-default CA_ROTOR0_PY 0.10
 param set-default CA_ROTOR0_PZ 0.06
-#param set-default CA_ROTOR0_PZ 0.0
 
-param set-default CA_ROTOR1_AX -1
-param set-default CA_ROTOR1_AY -1
+param set-default CA_ROTOR1_AX 1
+param set-default CA_ROTOR1_AY 1
 param set-default CA_ROTOR1_AZ 0
 param set-default CA_ROTOR1_KM 0
 param set-default CA_ROTOR1_PX 0.14
 param set-default CA_ROTOR1_PY -0.10
 param set-default CA_ROTOR1_PZ 0.06
-#param set-default CA_ROTOR1_PZ 0.0
 
 param set-default CA_ROTOR2_AX 1
 param set-default CA_ROTOR2_AY 1
@@ -67,7 +64,6 @@ param set-default CA_ROTOR2_KM 0
 param set-default CA_ROTOR2_PX -0.14
 param set-default CA_ROTOR2_PY 0.10
 param set-default CA_ROTOR2_PZ 0.06
-#param set-default CA_ROTOR2_PZ 0.0
 
 param set-default CA_ROTOR3_AX 1
 param set-default CA_ROTOR3_AY -1
@@ -79,7 +75,7 @@ param set-default CA_ROTOR3_PZ 0.06
 
 param set-default CA_ROTOR4_AX 0
 param set-default CA_ROTOR4_AY 0
-param set-default CA_ROTOR4_AZ 1
+param set-default CA_ROTOR4_AZ -1
 param set-default CA_ROTOR4_KM 0
 param set-default CA_ROTOR4_PX 0.12
 param set-default CA_ROTOR4_PY 0.22
@@ -103,7 +99,7 @@ param set-default CA_ROTOR6_PZ 0
 
 param set-default CA_ROTOR7_AX 0
 param set-default CA_ROTOR7_AY 0
-param set-default CA_ROTOR7_AZ 1
+param set-default CA_ROTOR7_AZ -1
 param set-default CA_ROTOR7_KM 0
 param set-default CA_ROTOR7_PX -0.12
 param set-default CA_ROTOR7_PY -0.22

ROMFS/px4fmu_common/init.d-posix/airframes/70000_gz_atmos

@@ -28,7 +28,6 @@ param set-default SIM_GZ_EN 1
 
 param set-default SENS_EN_MAGSIM 1
 param set-default COM_ARM_CHK_ESCS 0  # We don't have ESCs
-param set-default FD_ESCS_EN 0
 
 param set-default CA_AIRFRAME 14
 param set-default MAV_TYPE 45

ROMFS/px4fmu_common/init.d-posix/airframes/70001_gz_atmos_dual

@@ -28,7 +28,6 @@ param set-default SIM_GZ_EN 1
 
 param set-default SENS_EN_MAGSIM 1
 param set-default COM_ARM_CHK_ESCS 0  # We don't have ESCs
-param set-default FD_ESCS_EN 0
 
 param set-default CA_AIRFRAME 14
 param set-default MAV_TYPE 45

ROMFS/px4fmu_common/init.d-posix/airframes/CMakeLists.txt

@@ -107,6 +107,7 @@ px4_add_romfs_files(
 	10043_sihsim_standard_vtol
 	10044_sihsim_hex
 	10045_sihsim_rover_ackermann
+	10046_sihsim_quadx_vision
 
 	17001_flightgear_tf-g1
 	17002_flightgear_tf-g2

ROMFS/px4fmu_common/init.d-posix/px4-rc.mavlink

@@ -3,7 +3,6 @@
 
 udp_offboard_port_local=$((14580+px4_instance))
 udp_offboard_port_remote=$((14540+px4_instance))
-[ "$px4_instance" -gt 9 ] && udp_offboard_port_remote=14549 # use the same ports for more than 10 instances to avoid port overlaps
 udp_onboard_payload_port_local=$((14280+px4_instance))
 udp_onboard_payload_port_remote=$((14030+px4_instance))
 udp_onboard_gimbal_port_local=$((13030+px4_instance))

ROMFS/px4fmu_common/init.d/airframes/4052_holybro_qav250

@@ -2,7 +2,7 @@
 #
 # @name HolyBro QAV250
 #
-# @url https://docs.px4.io/main/en/frames_multicopter/holybro_qav250_pixhawk4_mini.html
+# @url https://docs.px4.io/main/en/frames_multicopter/holybro_qav250_pixhawk4_mini
 #
 # @type Quadrotor x
 # @class Copter

ROMFS/px4fmu_common/init.d/airframes/50001_aion_robotics_r1_rover

@@ -2,7 +2,7 @@
 #
 # @name Aion Robotics R1 UGV
 #
-# @url https://docs.px4.io/main/en/complete_vehicles_rover/aion_r1.html
+# @url https://docs.px4.io/main/en/complete_vehicles_rover/aion_r1
 #
 # @type Rover
 # @class Rover

ROMFS/px4fmu_common/init.d/airframes/60002_uuv_bluerov2_heavy

@@ -22,6 +22,9 @@
 
 . ${R}etc/init.d/rc.uuv_defaults
 
+# Overwrite DDS AG IP to `192.168.0.1`
+param set-default UXRCE_DDS_AG_IP -1062731775
+
 # param set-default MAV_1_CONFIG 102
 
 param set-default BAT1_A_PER_V 37.8798

ROMFS/px4fmu_common/init.d/rc.uuv_defaults

@@ -10,9 +10,6 @@ set VEHICLE_TYPE uuv
 # MAV_TYPE_SUBMARINE 12
 param set-default MAV_TYPE 12
 
-# Set micro-dds-client to use ethernet and IP-address 192.168.0.1
-param set-default UXRCE_DDS_AG_IP -1062731775
-
 # Disable preflight disarm to not interfere with external launching
 param set-default COM_DISARM_PRFLT -1
 param set-default CBRK_SUPPLY_CHK 894281

SECURITY.md

@@ -2,24 +2,40 @@
 
 ## Supported Versions
 
-The following is a list of versions the development team is currently supporting.
+The following versions receive security updates:
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 1.4.x   | :white_check_mark: |
-| 1.3.3   | :white_check_mark: |
-| < 1.3   | :x:                |
+| 1.16.x  | :white_check_mark: |
+| < 1.16  | :x:                |
 
 ## Reporting a Vulnerability
 
-We currently only receive security vulnerability reports through GitHub.
+We receive security vulnerability reports through GitHub Security Advisories.
 
-To begin a report, please go to the top-level repository, for example, PX4/PX4-Autopilot,
-and click on the Security tab. If you are on mobile, click the ... dropdown menu, and then click Security.
+To begin a report, go to the [PX4/PX4-Autopilot](https://github.com/PX4/PX4-Autopilot) repository
+and click on the **Security** tab. If you are on mobile, click the **...** dropdown menu, then click **Security**.
 
-Click Report a Vulnerability to open the advisory form. Fill in the advisory details form.
-Make sure your title is descriptive, and the development team can find all of the relevant details needed
-to verify on the description box. We recommend you add as much data as possible. We welcome logs,
-screenshots, photos, and videos, anything that can help us verify and identify the issues being reported.
+Click **Report a Vulnerability** to open the advisory form. Fill in the advisory details form.
+Make sure your title is descriptive and the description contains all relevant details needed
+to verify the issue. We welcome logs, screenshots, photos, and videos.
 
-At the bottom of the form, click Submit report. The maintainer team will be notified and will get back to you ASAP.
+At the bottom of the form, click **Submit report**.
+
+## Response Process
+
+1. **Acknowledgment**: The maintainer team will acknowledge your report within **7 days**.
+2. **Triage**: We will assess severity and impact and communicate next steps.
+3. **Disclosure**: We coordinate disclosure with the reporter. We follow responsible disclosure practices and will credit reporters in the advisory unless they request anonymity.
+
+If you do not receive acknowledgment within 7 days, please follow up by emailing the [release managers](MAINTAINERS.md).
+
+## Secure Development Practices
+
+The PX4 development team applies the following practices to reduce security risk:
+
+- **Code review**: All changes require peer review before merging.
+- **Static analysis**: [clang-tidy](https://clang.llvm.org/extra/clang-tidy/) runs on every pull request with warnings treated as errors.
+- **Fuzzing**: A daily fuzzing pipeline using [Google fuzztest](https://github.com/google/fuzztest) tests MAVLink message handling and GNSS driver protocol parsing.
+- **Input validation**: All external inputs (MAVLink messages, RC signals, sensor data) are validated against expected ranges before use.
+- **Compiler hardening**: Builds use `-Wall -Werror`, stack protectors, and other hardening flags where supported by the target platform.

Tools/astyle/files_to_check_code_style.sh

@@ -39,6 +39,8 @@ exec find boards msg src platforms test \
     -path src/lib/cdrstream/rosidl -prune -o \
     -path src/modules/zenoh/zenoh-pico -prune -o \
     -path boards/modalai/voxl2/libfc-sensor-api -prune -o \
+    -path boards/modalai/voxl2/src/lib/mpa/libmodal-json -prune -o \
+    -path boards/modalai/voxl2/src/lib/mpa/libmodal-pipe -prune -o \
     -path src/drivers/actuators/vertiq_io/iq-module-communication-cpp -prune -o \
     -path src/lib/tensorflow_lite_micro/tflite_micro -prune -o \
     -path src/drivers/ins/sbgecom/sbgECom -prune -o \

Tools/ci/check_commit_messages.py

@@ -0,0 +1,331 @@
+#!/usr/bin/env python3
+"""Validate commit messages in a PR against conventional commits format.
+
+Reads a JSON array of GitHub commit objects from stdin (as returned by the
+GitHub API's /pulls/{n}/commits endpoint) and checks each message for
+blocking errors and advisory warnings.
+
+With --markdown, outputs a formatted PR comment body instead of plain text.
+"""
+
+import json
+import sys
+
+from conventional_commits import (
+    EXEMPT_PREFIXES,
+    parse_header,
+)
+
+# Blocking: prefixes that indicate unsquashed fixup commits
+FIXUP_PREFIXES = ('fixup!', 'squash!', 'amend!')
+
+# Blocking: single-word throwaway messages (case-insensitive exact match)
+THROWAWAY_WORDS = frozenset({
+    'fix', 'fixed', 'fixes',
+    'update', 'updated', 'updates',
+    'test', 'tests', 'testing',
+    'tmp', 'temp',
+    'oops', 'wip',
+    'debug', 'cleanup',
+})
+
+# Blocking: debug session leftovers
+DEBUG_KEYWORDS = ('tmate',)
+
+# Warning: review-response messages (case-insensitive substring match)
+REVIEW_RESPONSE_PATTERNS = (
+    'address review',
+    'apply suggestions from code review',
+    'code review',
+)
+
+# Warning: formatter-only commits
+FORMATTER_PATTERNS = (
+    'do make format',
+    'make format',
+    'run formatter',
+    'apply format',
+)
+
+MIN_MESSAGE_LENGTH = 5
+
+
+def check_commit(message: str) -> tuple[list[str], list[str]]:
+    """Return (errors, warnings) for a single commit message."""
+    errors: list[str] = []
+    warnings: list[str] = []
+
+    first_line = message.split('\n', 1)[0].strip()
+    lower = first_line.lower()
+
+    # --- Blocking checks ---
+
+    for prefix in FIXUP_PREFIXES:
+        if lower.startswith(prefix):
+            errors.append(f'Unsquashed commit: starts with "{prefix}"')
+
+    if lower == 'wip' or lower.startswith('wip ') or lower.startswith('wip:'):
+        errors.append('WIP commit should not be merged')
+
+    if len(first_line) < MIN_MESSAGE_LENGTH:
+        errors.append(f'Message too short ({len(first_line)} chars, minimum {MIN_MESSAGE_LENGTH})')
+
+    if first_line.strip() and first_line.strip().lower() in THROWAWAY_WORDS:
+        errors.append(f'Single-word throwaway message: "{first_line.strip()}"')
+
+    for kw in DEBUG_KEYWORDS:
+        if kw in lower:
+            errors.append(f'Debug session leftover: contains "{kw}"')
+
+    # --- Warning checks ---
+
+    for pattern in REVIEW_RESPONSE_PATTERNS:
+        if pattern in lower:
+            warnings.append('Review-response commit')
+            break
+
+    for pattern in FORMATTER_PATTERNS:
+        if pattern in lower:
+            warnings.append('Formatter-only commit')
+            break
+
+    if not parse_header(first_line):
+        # Exempt merge commits
+        for prefix in EXEMPT_PREFIXES:
+            if first_line.startswith(prefix):
+                break
+        else:
+            warnings.append(
+                'Missing conventional commit format '
+                '(e.g. "feat(ekf2): add something")'
+            )
+
+    return errors, warnings
+
+
+def suggest_commit(message: str) -> str | None:
+    """Suggest how to fix a bad commit message."""
+    first_line = message.split('\n', 1)[0].strip()
+    lower = first_line.lower()
+
+    for prefix in FIXUP_PREFIXES:
+        if lower.startswith(prefix):
+            return 'Squash this into the commit it fixes'
+
+    if lower == 'wip' or lower.startswith('wip ') or lower.startswith('wip:'):
+        return 'Reword with a descriptive message (e.g. "feat(scope): what changed")'
+
+    if len(first_line) < MIN_MESSAGE_LENGTH:
+        return 'Reword with a descriptive message (e.g. "feat(ekf2): what changed")'
+
+    if first_line.strip().lower() in THROWAWAY_WORDS:
+        return 'Reword with a descriptive message (e.g. "fix(scope): what changed")'
+
+    return None
+
+
+def format_plain(data: list) -> tuple[bool, bool]:
+    """Print plain text output. Returns (has_blocking, has_warnings)."""
+    has_blocking = False
+    has_warnings = False
+
+    for commit in data:
+        sha = commit.get('sha', '?')[:10]
+        message = commit.get('commit', {}).get('message', '')
+        first_line = message.split('\n', 1)[0].strip()
+
+        errors, warnings = check_commit(message)
+
+        if errors or warnings:
+            print(f"\n  {sha}  {first_line}")
+
+        for err in errors:
+            print(f"    ERROR: {err}")
+            has_blocking = True
+
+        for warn in warnings:
+            print(f"    WARNING: {warn}")
+            has_warnings = True
+
+    if has_blocking:
+        print(
+            "\n"
+            "ERROR = must fix before merging (CI will block the PR)\n"
+            "WARNING = advisory, not blocking, but recommended to fix\n"
+            "\n"
+            "See the contributing guide for details:\n"
+            "  https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention\n",
+        )
+
+    elif has_warnings:
+        print(
+            "\n"
+            "WARNING = advisory, not blocking, but recommended to fix\n"
+            "\n"
+            "See the contributing guide for details:\n"
+            "  https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention\n",
+        )
+
+    return has_blocking, has_warnings
+
+
+def format_markdown_blocking(data: list) -> str:
+    """Format a blocking error markdown comment."""
+    error_groups: dict[str, list[str]] = {}
+    unique_commits: list[tuple[str, str, list[str], str]] = []
+
+    for commit in data:
+        sha = commit.get('sha', '?')[:10]
+        message = commit.get('commit', {}).get('message', '')
+        first_line = message.split('\n', 1)[0].strip()
+
+        errors, _ = check_commit(message)
+        if not errors:
+            continue
+
+        suggestion = suggest_commit(message) or ''
+        unique_commits.append((sha, first_line, errors, suggestion))
+
+        for err in errors:
+            error_groups.setdefault(err, []).append(sha)
+
+    lines = [
+        "## \u274c Commit messages need attention before merging",
+        "",
+    ]
+
+    has_large_group = any(len(shas) > 3 for shas in error_groups.values())
+
+    if has_large_group:
+        lines.extend([
+            "**Issues found:**",
+            "",
+        ])
+        for err_msg, shas in error_groups.items():
+            if len(shas) > 3:
+                lines.append(f"- **{len(shas)} commits**: {err_msg} "
+                             f"(`{shas[0]}`, `{shas[1]}`, ... `{shas[-1]}`)")
+            else:
+                sha_list = ', '.join(f'`{s}`' for s in shas)
+                lines.append(f"- {err_msg}: {sha_list}")
+
+        distinct_messages = {msg for _, msg, _, _ in unique_commits}
+        if len(distinct_messages) <= 5:
+            lines.extend(["", "**Affected commits:**", ""])
+            for sha, msg, errors, suggestion in unique_commits:
+                safe_msg = msg.replace('|', '\\|')
+                lines.append(f"- `{sha}` {safe_msg}")
+    else:
+        lines.extend([
+            "| Commit | Message | Issue | Suggested fix |",
+            "|--------|---------|-------|---------------|",
+        ])
+        for sha, msg, errors, suggestion in unique_commits:
+            issues = '; '.join(errors)
+            safe_msg = msg.replace('|', '\\|')
+            lines.append(f"| `{sha}` | {safe_msg} | {issues} | {suggestion} |")
+
+    lines.extend([
+        "",
+        "See [CONTRIBUTING.md](https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention) "
+        "for how to clean up commits.",
+        "",
+        "---",
+        "*This comment will be automatically removed once the issues are resolved.*",
+    ])
+
+    return '\n'.join(lines)
+
+
+def format_markdown_advisory(data: list) -> str:
+    """Format an advisory warning markdown comment."""
+    lines = [
+        "## \U0001f4a1 Commit messages could be improved",
+        "",
+        "Not blocking, but these commit messages could use some cleanup.",
+        "",
+        "| Commit | Message | Suggestion |",
+        "|--------|---------|------------|",
+    ]
+
+    for commit in data:
+        sha = commit.get('sha', '?')[:10]
+        message = commit.get('commit', {}).get('message', '')
+        first_line = message.split('\n', 1)[0].strip()
+
+        _, warnings = check_commit(message)
+        if not warnings:
+            continue
+
+        suggestion = '; '.join(warnings)
+        safe_msg = first_line.replace('|', '\\|')
+        lines.append(f"| `{sha}` | {safe_msg} | {suggestion} |")
+
+    lines.extend([
+        "",
+        "See the [commit message convention](https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention) "
+        "for details.",
+        "",
+        "---",
+        "*This comment will be automatically removed once the issues are resolved.*",
+    ])
+
+    return '\n'.join(lines)
+
+
+def main() -> None:
+    markdown_stdout = '--markdown' in sys.argv
+    markdown_file = None
+    for i, a in enumerate(sys.argv):
+        if a == '--markdown-file' and i + 1 < len(sys.argv):
+            markdown_file = sys.argv[i + 1]
+        elif a.startswith('--markdown-file='):
+            markdown_file = a.split('=', 1)[1]
+
+    try:
+        data = json.load(sys.stdin)
+    except json.JSONDecodeError as exc:
+        print(f"Failed to parse JSON input: {exc}", file=sys.stderr)
+        sys.exit(2)
+
+    if not isinstance(data, list):
+        print("Expected a JSON array of commit objects.", file=sys.stderr)
+        sys.exit(2)
+
+    # Always compute blocking/warning state
+    has_blocking = False
+    has_warnings = False
+    for commit in data:
+        message = commit.get('commit', {}).get('message', '')
+        errors, warnings = check_commit(message)
+        if errors:
+            has_blocking = True
+        if warnings:
+            has_warnings = True
+
+    # Generate markdown if needed
+    md = None
+    if has_blocking:
+        md = format_markdown_blocking(data)
+    elif has_warnings:
+        md = format_markdown_advisory(data)
+
+    if md:
+        if markdown_stdout:
+            print(md)
+        if markdown_file:
+            with open(markdown_file, 'w') as f:
+                f.write(md + '\n')
+    elif markdown_file:
+        with open(markdown_file, 'w') as f:
+            pass
+
+    # Plain text output to stderr for CI logs (always, unless --markdown only)
+    if not markdown_stdout:
+        has_blocking, _ = format_plain(data)
+
+    sys.exit(1 if has_blocking else 0)
+
+
+if __name__ == '__main__':
+    main()

Tools/ci/check_pr_title.py

@@ -0,0 +1,163 @@
+#!/usr/bin/env python3
+"""Validate that a PR title follows conventional commits format.
+
+Format: type(scope): description
+
+Can output plain text for CI logs or markdown for PR comments.
+"""
+
+import re
+import sys
+
+from conventional_commits import (
+    CONVENTIONAL_TYPES,
+    EXEMPT_PREFIXES,
+    parse_header,
+    suggest_scope,
+    suggest_type,
+)
+
+
+def suggest_title(title: str) -> str | None:
+    """Try to suggest a corrected title in conventional commits format."""
+    stripped = title.strip()
+
+    # Remove common bracket prefixes like [docs], [CI], etc.
+    bracket_match = re.match(r'^\[([^\]]+)\]\s*(.+)', stripped)
+    if bracket_match:
+        prefix = bracket_match.group(1).strip().lower()
+        rest = bracket_match.group(2).strip()
+        rest = re.sub(r'^[\-:]\s*', '', rest).strip()
+        if len(rest) >= 5:
+            # Try to map bracket content to a type
+            commit_type = prefix if prefix in CONVENTIONAL_TYPES else suggest_type(rest)
+            scope = suggest_scope(rest)
+            if scope:
+                return f"{commit_type}({scope}): {rest}"
+
+    # Already has old-style "subsystem: description" format - convert it
+    colon_match = re.match(r'^([a-zA-Z][a-zA-Z0-9_/\-\. ]*): (.+)$', stripped)
+    if colon_match:
+        old_subsystem = colon_match.group(1).strip()
+        desc = colon_match.group(2).strip()
+        if len(desc) >= 5:
+            commit_type = suggest_type(desc)
+            # Use the old subsystem as scope (clean it up)
+            scope = old_subsystem.lower().replace(' ', '_')
+            return f"{commit_type}({scope}): {desc}"
+
+    # No format at all - try to guess both type and scope
+    commit_type = suggest_type(stripped)
+    scope = suggest_scope(stripped)
+    if scope:
+        desc = stripped[0].lower() + stripped[1:] if stripped else stripped
+        return f"{commit_type}({scope}): {desc}"
+
+    return None
+
+
+def check_title(title: str) -> bool:
+    title = title.strip()
+
+    if not title:
+        print("PR title is empty.", file=sys.stderr)
+        return False
+
+    for prefix in EXEMPT_PREFIXES:
+        if title.startswith(prefix):
+            return True
+
+    if parse_header(title):
+        return True
+
+    types_str = ', '.join(f'`{t}`' for t in CONVENTIONAL_TYPES.keys())
+    print(
+        f"PR title does not match conventional commits format.\n"
+        f"\n"
+        f"  Title: {title}\n"
+        f"\n"
+        f"Expected format:  type(scope): description\n"
+        f"\n"
+        f"Valid types: {types_str}\n"
+        f"\n"
+        f"Good examples:\n"
+        f"  feat(ekf2): add height fusion timeout\n"
+        f"  fix(mavlink): correct BATTERY_STATUS_V2 parsing\n"
+        f"  ci(workflows): migrate to reusable workflows\n"
+        f"  feat(boards/px4_fmu-v6x)!: remove deprecated driver API\n"
+        f"\n"
+        f"Bad examples:\n"
+        f"  fix stuff\n"
+        f"  Update file\n"
+        f"  ekf2: fix something   (missing type prefix)\n"
+        f"\n"
+        f"See the contributing guide for details:\n"
+        f"  https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention\n",
+        file=sys.stderr,
+    )
+    return False
+
+
+def format_markdown(title: str) -> str:
+    """Format a markdown PR comment body for a bad title."""
+    lines = [
+        "## \u274c PR title needs conventional commit format",
+        "",
+        "Expected format: `type(scope): description` "
+        "([conventional commits](https://www.conventionalcommits.org/)).",
+        "",
+        "**Your title:**",
+        f"> {title}",
+        "",
+    ]
+
+    suggestion = suggest_title(title)
+    if suggestion:
+        lines.extend([
+            "**Suggested fix:**",
+            f"> {suggestion}",
+            "",
+        ])
+
+    lines.extend([
+        "**To fix this:** click the ✏️ next to the PR title at the top "
+        "of this page and update it.",
+        "",
+        "See [CONTRIBUTING.md](https://github.com/PX4/PX4-Autopilot/blob/main/CONTRIBUTING.md#commit-message-convention) "
+        "for details.",
+        "",
+        "---",
+        "*This comment will be automatically removed once the issue is resolved.*",
+    ])
+
+    return '\n'.join(lines)
+
+
+def main() -> None:
+    import argparse
+    parser = argparse.ArgumentParser(description='Check PR title format')
+    parser.add_argument('title', help='The PR title to validate')
+    parser.add_argument('--markdown', action='store_true',
+                        help='Output markdown to stdout on failure')
+    parser.add_argument('--markdown-file', metavar='FILE',
+                        help='Write markdown to FILE on failure')
+    args = parser.parse_args()
+
+    passed = check_title(args.title)
+
+    if not passed:
+        md = format_markdown(args.title)
+        if args.markdown:
+            print(md)
+        if args.markdown_file:
+            with open(args.markdown_file, 'w') as f:
+                f.write(md + '\n')
+    elif args.markdown_file:
+        with open(args.markdown_file, 'w') as f:
+            pass
+
+    sys.exit(0 if passed else 1)
+
+
+if __name__ == '__main__':
+    main()

Tools/ci/conventional_commits.py

@@ -0,0 +1,146 @@
+"""Shared constants and helpers for conventional commit validation.
+
+Format: type(scope): description
+Optional breaking change marker: type(scope)!: description
+"""
+
+import re
+
+CONVENTIONAL_TYPES = {
+    'feat':     'A new feature',
+    'fix':      'A bug fix',
+    'docs':     'Documentation only changes',
+    'style':    'Formatting, whitespace, no code change',
+    'refactor': 'Code change that neither fixes a bug nor adds a feature',
+    'perf':     'Performance improvement',
+    'test':     'Adding or correcting tests',
+    'build':    'Build system or external dependencies',
+    'ci':       'CI configuration files and scripts',
+    'chore':    'Other changes that don\'t modify src or test files',
+    'revert':   'Reverts a previous commit',
+}
+
+# type(scope)[!]: description
+# - type: one of CONVENTIONAL_TYPES keys
+# - scope: required, alphanumeric with _/-/.
+# - !: optional breaking change marker
+# - description: at least 5 chars
+HEADER_PATTERN = re.compile(
+    r'^(' + '|'.join(CONVENTIONAL_TYPES.keys()) + r')'
+    r'\(([a-zA-Z0-9_/\-\.]+)\)'
+    r'(!)?'
+    r': (.{5,})$'
+)
+
+EXEMPT_PREFIXES = ('Merge ',)
+
+# Common PX4 subsystem scopes for suggestions
+KNOWN_SCOPES = [
+    'ekf2', 'mavlink', 'commander', 'navigator', 'sensors',
+    'mc_att_control', 'mc_pos_control', 'mc_rate_control',
+    'fw_att_control', 'fw_pos_control', 'fw_rate_control',
+    'vtol', 'actuators', 'battery', 'param', 'logger',
+    'uorb', 'drivers', 'boards', 'simulation', 'sitl',
+    'gps', 'rc', 'safety', 'can', 'serial',
+    'ci', 'docs', 'build', 'cmake', 'tools',
+    'mixer', 'land_detector', 'airspeed', 'gyroscope',
+    'accelerometer', 'magnetometer', 'barometer',
+]
+
+# Keyword patterns to suggest scopes from description text
+KEYWORD_SCOPES = [
+    (r'\b(ekf|estimator|height|fusion|imu|baro)\b', 'ekf2'),
+    (r'\b(mavlink|MAVLink|MAVLINK|command_int|heartbeat)\b', 'mavlink'),
+    (r'\b(uorb|orb|pub|sub|topic)\b', 'uorb'),
+    (r'\b(board|fmu|nuttx|stm32)\b', 'boards'),
+    (r'\b(mixer|actuator|motor|servo|pwm|dshot)\b', 'actuators'),
+    (r'\b(battery|power)\b', 'battery'),
+    (r'\b(param|parameter)\b', 'param'),
+    (r'\b(log|logger|sdlog)\b', 'logger'),
+    (r'\b(sensor|accel|gyro)\b', 'sensors'),
+    (r'\b(land|takeoff|rtl|mission|navigator|geofence)\b', 'navigator'),
+    (r'\b(position|velocity|attitude|rate)\s*(control|ctrl)\b', 'mc_att_control'),
+    (r'\b(mc|multicopter|quad)\b', 'mc_att_control'),
+    (r'\b(fw|fixedwing|fixed.wing|plane)\b', 'fw_att_control'),
+    (r'\b(vtol|transition)\b', 'vtol'),
+    (r'\b(ci|workflow|github.action|pipeline)\b', 'ci'),
+    (r'\b(doc|docs|documentation|readme)\b', 'docs'),
+    (r'\b(cmake|make|toolchain|compiler)\b', 'build'),
+    (r'\b(sitl|simulation|gazebo|jmavsim|sih)\b', 'simulation'),
+    (r'\b(can|uavcan|cyphal|dronecan)\b', 'can'),
+    (r'\b(serial|uart|spi|i2c)\b', 'serial'),
+    (r'\b(safety|failsafe|arm|disarm|kill)\b', 'safety'),
+    (r'\b(rc|radio|sbus|crsf|elrs|dsm)\b', 'rc'),
+    (r'\b(gps|gnss|rtk|ubx)\b', 'gps'),
+    (r'\b(optical.flow|flow|rangefinder|lidar|distance)\b', 'sensors'),
+    (r'\b(orbit|follow|offboard)\b', 'commander'),
+    (r'\b(driver)\b', 'drivers'),
+]
+
+# Verb patterns to suggest conventional commit type
+VERB_TYPE_MAP = [
+    (r'^fix(e[ds])?[\s:]', 'fix'),
+    (r'^bug[\s:]', 'fix'),
+    (r'^add(s|ed|ing)?[\s:]', 'feat'),
+    (r'^implement', 'feat'),
+    (r'^introduce', 'feat'),
+    (r'^support', 'feat'),
+    (r'^enable', 'feat'),
+    (r'^update[ds]?[\s:]', 'feat'),
+    (r'^improv(e[ds]?|ing)', 'perf'),
+    (r'^optimi[zs](e[ds]?|ing)', 'perf'),
+    (r'^refactor', 'refactor'),
+    (r'^clean\s*up', 'refactor'),
+    (r'^restructure', 'refactor'),
+    (r'^simplif(y|ied)', 'refactor'),
+    (r'^remov(e[ds]?|ing)', 'refactor'),
+    (r'^delet(e[ds]?|ing)', 'refactor'),
+    (r'^deprecat', 'refactor'),
+    (r'^replac(e[ds]?|ing)', 'refactor'),
+    (r'^renam(e[ds]?|ing)', 'refactor'),
+    (r'^migrat', 'refactor'),
+    (r'^revert', 'revert'),
+    (r'^doc(s|ument)', 'docs'),
+    (r'^test', 'test'),
+    (r'^format', 'style'),
+    (r'^lint', 'style'),
+    (r'^whitespace', 'style'),
+    (r'^build', 'build'),
+    (r'^ci[\s:]', 'ci'),
+]
+
+
+def parse_header(text: str) -> dict | None:
+    """Parse a conventional commit header into components.
+
+    Returns dict with keys {type, scope, breaking, subject} or None if
+    the text doesn't match conventional commits format.
+    """
+    text = text.strip()
+    m = HEADER_PATTERN.match(text)
+    if not m:
+        return None
+    return {
+        'type': m.group(1),
+        'scope': m.group(2),
+        'breaking': m.group(3) == '!',
+        'subject': m.group(4),
+    }
+
+
+def suggest_type(text: str) -> str:
+    """Infer a conventional commit type from description text."""
+    lower = text.strip().lower()
+    for pattern, commit_type in VERB_TYPE_MAP:
+        if re.search(pattern, lower):
+            return commit_type
+    return 'feat'
+
+
+def suggest_scope(text: str) -> str | None:
+    """Infer a scope from keywords in the text."""
+    lower = text.strip().lower()
+    for pattern, scope in KEYWORD_SCOPES:
+        if re.search(pattern, lower, re.IGNORECASE):
+            return scope
+    return None

Tools/ci/generate_board_targets_json.py

@@ -36,11 +36,20 @@ if args.filter:
         target_filter.append(target)
 
 default_container = 'ghcr.io/px4/px4-dev:v1.16.0-rc1-258-g0369abd556'
+voxl2_container = 'ghcr.io/px4/px4-dev-voxl2:v1.5'
 build_configs = []
 grouped_targets = {}
-excluded_boards = ['modalai_voxl2', 'px4_ros2', 'espressif_esp32']  # TODO: fix and enable
+excluded_boards = ['px4_ros2', 'espressif_esp32']  # TODO: fix and enable
 excluded_manufacturers = ['atlflight']
-excluded_platforms = ['qurt']
+excluded_platforms = []
+
+# Container overrides for platforms/boards that need a non-default container
+platform_container_overrides = {
+    'qurt': voxl2_container,
+}
+board_container_overrides = {
+    'modalai_voxl2': voxl2_container,
+}
 excluded_labels = [
     'stackcheck',
     'nolockstep', 'replay', 'test',
@@ -88,7 +97,20 @@ def process_target(px4board_file, target_name):
 
     if platform not in excluded_platforms:
         container = default_container
-        if platform == 'posix':
+
+        # Extract board name (manufacturer_board) from target name
+        board_name = '_'.join(target_name.split('_')[:2])
+
+        # Apply container overrides for specific platforms or boards
+        if platform in platform_container_overrides:
+            container = platform_container_overrides[platform]
+        if board_name in board_container_overrides:
+            container = board_container_overrides[board_name]
+
+        # Boards with container overrides get their own group
+        if board_name in board_container_overrides or platform in platform_container_overrides:
+            group = 'voxl2'
+        elif platform == 'posix':
             group = 'base'
             if toolchain:
                 if toolchain.startswith('aarch64'):
@@ -126,18 +148,18 @@ grouped_targets['base']['manufacturers'] = {}
 grouped_targets['base']['manufacturers']['px4'] = []
 grouped_targets['base']['manufacturers']['px4'] += metadata_targets
 
-for manufacturer in os.scandir(os.path.join(source_dir, '../boards')):
+for manufacturer in sorted(os.scandir(os.path.join(source_dir, '../boards')), key=lambda e: e.name):
     if not manufacturer.is_dir():
         continue
     if manufacturer.name in excluded_manufacturers:
         if verbose: print(f'excluding manufacturer {manufacturer.name}')
         continue
 
-    for board in os.scandir(manufacturer.path):
+    for board in sorted(os.scandir(manufacturer.path), key=lambda e: e.name):
         if not board.is_dir():
             continue
 
-        for files in os.scandir(board.path):
+        for files in sorted(os.scandir(board.path), key=lambda e: e.name):
             if files.is_file() and files.name.endswith('.px4board'):
 
                 board_name = manufacturer.name + '_' + board.name
@@ -203,7 +225,7 @@ if (args.group):
     if(verbose):
         print(f'=:Architectures: [{grouped_targets.keys()}]')
     for arch in grouped_targets:
-        runner = 'x64' if arch == 'nuttx' else 'arm64'
+        runner = 'x64' if arch in ('nuttx', 'voxl2') else 'arm64'
         if(verbose):
             print(f'=:Processing: [{arch}]')
         temp_group = []

Tools/ci/metadata_sync.sh

@@ -0,0 +1,431 @@
+#!/usr/bin/env bash
+#
+# metadata_sync.sh - Unified metadata generation and synchronization for PX4 docs
+#
+# Usage:
+#   Tools/ci/metadata_sync.sh [OPTIONS] [TYPES...]
+#
+# Types:
+#   parameters    - Parameter reference (docs/en/advanced_config/parameter_reference.md)
+#   airframes     - Airframe reference (docs/en/airframes/airframe_reference.md)
+#   modules       - Module documentation (docs/en/modules/*.md)
+#   msg_docs      - uORB message docs (docs/en/msg_docs/*.md + docs/en/middleware/dds_topics.md)
+#   uorb_graphs   - uORB graph JSONs (docs/public/middleware/*.json)
+#   failsafe_web  - Failsafe simulator (docs/public/config/failsafe/*.{js,wasm,json})
+#   all           - All of the above (default)
+#
+# Options:
+#   --generate    Build the make targets to generate fresh metadata
+#   --sync        Copy generated files to docs/
+#   --verbose     Show detailed output
+#   --help        Show this help
+#
+# Exit codes:
+#   0 - Success (files synced or already up-to-date)
+#   1 - Error (build failed, missing files, etc.)
+#
+# Examples:
+#   # Full regeneration and sync (orchestrator use case)
+#   Tools/ci/metadata_sync.sh --generate --sync all
+#
+#   # Just sync specific type (assumes already built)
+#   Tools/ci/metadata_sync.sh --sync parameters
+#
+#   # Generate only, don't copy
+#   Tools/ci/metadata_sync.sh --generate uorb_graphs
+#
+set -euo pipefail
+shopt -s nullglob
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Configuration
+# ═══════════════════════════════════════════════════════════════════════════════
+
+EMSCRIPTEN_VERSION="3.1.64"
+EMSDK_DIR="${EMSDK_DIR:-_emscripten_sdk}"
+
+# All available metadata types
+ALL_TYPES=(parameters airframes modules msg_docs uorb_graphs failsafe_web)
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Logging
+# ═══════════════════════════════════════════════════════════════════════════════
+
+VERBOSE=false
+
+log() {
+    echo "[metadata_sync] $*"
+}
+
+log_verbose() {
+    if [[ "$VERBOSE" == "true" ]]; then
+        echo "[metadata_sync] $*"
+    fi
+}
+
+die() {
+    echo "[metadata_sync] ERROR: $*" >&2
+    exit 1
+}
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Help
+# ═══════════════════════════════════════════════════════════════════════════════
+
+show_help() {
+    head -n 35 "$0" | tail -n +2 | sed 's/^# \?//'
+    exit 0
+}
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Emscripten Setup
+# ═══════════════════════════════════════════════════════════════════════════════
+
+ensure_emscripten() {
+    if command -v emcc >/dev/null 2>&1; then
+        log_verbose "Emscripten already available: $(emcc --version | head -1)"
+        return 0
+    fi
+
+    log "Setting up Emscripten ${EMSCRIPTEN_VERSION}..."
+
+    if [[ ! -d "$EMSDK_DIR" ]]; then
+        log_verbose "Cloning emsdk to $EMSDK_DIR"
+        if [[ "$VERBOSE" == "true" ]]; then
+            git clone https://github.com/emscripten-core/emsdk.git "$EMSDK_DIR"
+        else
+            git clone https://github.com/emscripten-core/emsdk.git "$EMSDK_DIR" >/dev/null 2>&1
+        fi
+    fi
+
+    pushd "$EMSDK_DIR" >/dev/null
+    if [[ "$VERBOSE" == "true" ]]; then
+        ./emsdk install "$EMSCRIPTEN_VERSION"
+        ./emsdk activate "$EMSCRIPTEN_VERSION"
+    else
+        ./emsdk install "$EMSCRIPTEN_VERSION" >/dev/null 2>&1
+        ./emsdk activate "$EMSCRIPTEN_VERSION" >/dev/null 2>&1
+    fi
+    popd >/dev/null
+
+    # shellcheck source=/dev/null
+    source "${EMSDK_DIR}/emsdk_env.sh" >/dev/null 2>&1
+
+    log_verbose "Emscripten ready: $(emcc --version | head -1)"
+}
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Generation Functions
+# ═══════════════════════════════════════════════════════════════════════════════
+
+generate_parameters() {
+    log "Generating parameters metadata..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make parameters_metadata
+    else
+        make parameters_metadata >/dev/null
+    fi
+}
+
+generate_airframes() {
+    log "Generating airframes metadata..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make airframe_metadata
+    else
+        make airframe_metadata >/dev/null
+    fi
+}
+
+generate_modules() {
+    log "Generating modules documentation..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make module_documentation
+    else
+        make module_documentation >/dev/null
+    fi
+}
+
+generate_msg_docs() {
+    log "Generating message documentation..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make msg_docs
+    else
+        make msg_docs >/dev/null
+    fi
+}
+
+generate_uorb_graphs() {
+    log "Generating uORB graphs..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make uorb_graphs
+    else
+        make uorb_graphs >/dev/null
+    fi
+}
+
+generate_failsafe_web() {
+    ensure_emscripten
+    log "Generating failsafe web..."
+    if [[ "$VERBOSE" == "true" ]]; then
+        make failsafe_web
+    else
+        make failsafe_web >/dev/null
+    fi
+}
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Sync Functions
+# ═══════════════════════════════════════════════════════════════════════════════
+
+sync_parameters() {
+    local src="build/px4_sitl_default/docs/parameters.md"
+    local dest="docs/en/advanced_config/parameter_reference.md"
+
+    log "Syncing parameters..."
+
+    if [[ ! -f "$src" ]]; then
+        die "Source file not found: $src (did you run --generate?)"
+    fi
+
+    mkdir -p "$(dirname "$dest")"
+    cp "$src" "$dest"
+    log_verbose "  $src -> $dest"
+}
+
+sync_airframes() {
+    local src="build/px4_sitl_default/docs/airframes.md"
+    local dest="docs/en/airframes/airframe_reference.md"
+
+    log "Syncing airframes..."
+
+    if [[ ! -f "$src" ]]; then
+        die "Source file not found: $src (did you run --generate?)"
+    fi
+
+    mkdir -p "$(dirname "$dest")"
+    cp "$src" "$dest"
+    log_verbose "  $src -> $dest"
+}
+
+sync_modules() {
+    local src_dir="build/px4_sitl_default/docs/modules"
+    local dest_dir="docs/en/modules"
+
+    log "Syncing modules..."
+
+    if [[ ! -d "$src_dir" ]]; then
+        die "Source directory not found: $src_dir (did you run --generate?)"
+    fi
+
+    local src_files=("$src_dir"/*.md)
+    if [[ ${#src_files[@]} -eq 0 ]]; then
+        die "No .md files found in $src_dir"
+    fi
+
+    mkdir -p "$dest_dir"
+
+    for src in "${src_files[@]}"; do
+        local name
+        name=$(basename "$src")
+        cp "$src" "$dest_dir/$name"
+        log_verbose "  $src -> $dest_dir/$name"
+    done
+}
+
+sync_msg_docs() {
+    local src_dir="build/msg_docs"
+    local dest_dir="docs/en/msg_docs"
+    local middleware_dir="docs/en/middleware"
+
+    log "Syncing message docs..."
+
+    if [[ ! -d "$src_dir" ]]; then
+        die "Source directory not found: $src_dir (did you run --generate?)"
+    fi
+
+    local src_files=("$src_dir"/*.md)
+    if [[ ${#src_files[@]} -eq 0 ]]; then
+        die "No .md files found in $src_dir"
+    fi
+
+    mkdir -p "$dest_dir"
+    mkdir -p "$middleware_dir"
+
+    for src in "${src_files[@]}"; do
+        local name
+        name=$(basename "$src")
+
+        # dds_topics.md goes to middleware dir
+        if [[ "$name" == "dds_topics.md" ]]; then
+            cp "$src" "$middleware_dir/$name"
+            log_verbose "  $src -> $middleware_dir/$name"
+        else
+            cp "$src" "$dest_dir/$name"
+            log_verbose "  $src -> $dest_dir/$name"
+        fi
+    done
+}
+
+sync_uorb_graphs() {
+    local src_dir="Tools/uorb_graph"
+    local dest_dir="docs/public/middleware"
+
+    log "Syncing uORB graphs..."
+
+    local src_files=("$src_dir"/*.json)
+    if [[ ${#src_files[@]} -eq 0 ]]; then
+        die "No .json files found in $src_dir (did you run --generate?)"
+    fi
+
+    mkdir -p "$dest_dir"
+
+    for src in "${src_files[@]}"; do
+        local name
+        name=$(basename "$src")
+        cp "$src" "$dest_dir/$name"
+        log_verbose "  $src -> $dest_dir/$name"
+    done
+}
+
+sync_failsafe_web() {
+    local src_dir="build/px4_sitl_default_failsafe_web"
+    local dest_dir="docs/public/config/failsafe"
+
+    log "Syncing failsafe web..."
+
+    if [[ ! -d "$src_dir" ]]; then
+        die "Source directory not found: $src_dir (did you run --generate?)"
+    fi
+
+    # Gather js, wasm, json files
+    local src_files=()
+    for ext in js wasm json; do
+        src_files+=("$src_dir"/*."$ext")
+    done
+
+    if [[ ${#src_files[@]} -eq 0 ]]; then
+        die "No .js/.wasm/.json files found in $src_dir"
+    fi
+
+    mkdir -p "$dest_dir"
+
+    for src in "${src_files[@]}"; do
+        local name
+        name=$(basename "$src")
+        cp "$src" "$dest_dir/$name"
+        log_verbose "  $src -> $dest_dir/$name"
+    done
+}
+
+# ═══════════════════════════════════════════════════════════════════════════════
+# Main Logic
+# ═══════════════════════════════════════════════════════════════════════════════
+
+DO_GENERATE=false
+DO_SYNC=false
+SELECTED_TYPES=()
+
+parse_args() {
+    while [[ $# -gt 0 ]]; do
+        case "$1" in
+            --generate)
+                DO_GENERATE=true
+                shift
+                ;;
+            --sync)
+                DO_SYNC=true
+                shift
+                ;;
+            --verbose)
+                VERBOSE=true
+                shift
+                ;;
+            --help|-h)
+                show_help
+                ;;
+            -*)
+                die "Unknown option: $1"
+                ;;
+            *)
+                # It's a type
+                SELECTED_TYPES+=("$1")
+                shift
+                ;;
+        esac
+    done
+
+    # Default to all types if none specified
+    if [[ ${#SELECTED_TYPES[@]} -eq 0 ]]; then
+        SELECTED_TYPES=("all")
+    fi
+
+    # Expand "all" to all types
+    local expanded_types=()
+    for t in "${SELECTED_TYPES[@]}"; do
+        if [[ "$t" == "all" ]]; then
+            expanded_types+=("${ALL_TYPES[@]}")
+        else
+            expanded_types+=("$t")
+        fi
+    done
+    SELECTED_TYPES=("${expanded_types[@]}")
+
+    # Validate types
+    for t in "${SELECTED_TYPES[@]}"; do
+        local valid=false
+        for valid_type in "${ALL_TYPES[@]}"; do
+            if [[ "$t" == "$valid_type" ]]; then
+                valid=true
+                break
+            fi
+        done
+        if [[ "$valid" == "false" ]]; then
+            die "Unknown type: $t (valid: ${ALL_TYPES[*]})"
+        fi
+    done
+
+    # Must specify at least one action
+    if [[ "$DO_GENERATE" == "false" && "$DO_SYNC" == "false" ]]; then
+        die "Must specify at least one of: --generate, --sync"
+    fi
+}
+
+main() {
+    parse_args "$@"
+
+    log "Selected types: ${SELECTED_TYPES[*]}"
+    [[ "$DO_GENERATE" == "true" ]] && log "Actions: generate"
+    [[ "$DO_SYNC" == "true" ]] && log "Actions: sync"
+
+    # Remove duplicates from SELECTED_TYPES
+    local -A seen
+    local unique_types=()
+    for t in "${SELECTED_TYPES[@]}"; do
+        if [[ -z "${seen[$t]:-}" ]]; then
+            seen[$t]=1
+            unique_types+=("$t")
+        fi
+    done
+    SELECTED_TYPES=("${unique_types[@]}")
+
+    # Generate phase
+    if [[ "$DO_GENERATE" == "true" ]]; then
+        log "=== Generation Phase ==="
+        for t in "${SELECTED_TYPES[@]}"; do
+            "generate_$t"
+        done
+    fi
+
+    # Sync phase
+    if [[ "$DO_SYNC" == "true" ]]; then
+        log "=== Sync Phase ==="
+        for t in "${SELECTED_TYPES[@]}"; do
+            "sync_$t"
+        done
+    fi
+
+    log "Done."
+    exit 0
+}
+
+main "$@"

Tools/ci/package_build_artifacts.sh

@@ -1,37 +1,47 @@
 #!/bin/bash
 
 mkdir artifacts
-cp **/**/*.px4 artifacts/
-cp **/**/*.elf artifacts/
+cp **/**/*.px4 artifacts/ 2>/dev/null || true
+cp **/**/*.elf artifacts/ 2>/dev/null || true
 for build_dir_path in build/*/ ; do
   build_dir_path=${build_dir_path::${#build_dir_path}-1}
   build_dir=${build_dir_path#*/}
-  mkdir artifacts/$build_dir
+  mkdir -p artifacts/$build_dir
   find artifacts/ -maxdepth 1 -type f -name "*$build_dir*"
-  # Airframe
-  cp $build_dir_path/airframes.xml artifacts/$build_dir/
+  # Airframe (NuttX: build root, SITL: docs/ subdirectory)
+  airframes_src=""
+  if [ -f "$build_dir_path/airframes.xml" ]; then
+    airframes_src="$build_dir_path/airframes.xml"
+  elif [ -f "$build_dir_path/docs/airframes.xml" ]; then
+    airframes_src="$build_dir_path/docs/airframes.xml"
+  fi
+  if [ -n "$airframes_src" ]; then
+    cp "$airframes_src" "artifacts/$build_dir/"
+  fi
   # Parameters
-  cp $build_dir_path/parameters.xml artifacts/$build_dir/
-  cp $build_dir_path/parameters.json artifacts/$build_dir/
-  cp $build_dir_path/parameters.json.xz artifacts/$build_dir/
+  cp $build_dir_path/parameters.xml artifacts/$build_dir/ 2>/dev/null || true
+  cp $build_dir_path/parameters.json artifacts/$build_dir/ 2>/dev/null || true
+  cp $build_dir_path/parameters.json.xz artifacts/$build_dir/ 2>/dev/null || true
   # Actuators
-  cp $build_dir_path/actuators.json artifacts/$build_dir/
-  cp $build_dir_path/actuators.json.xz artifacts/$build_dir/
+  cp $build_dir_path/actuators.json artifacts/$build_dir/ 2>/dev/null || true
+  cp $build_dir_path/actuators.json.xz artifacts/$build_dir/ 2>/dev/null || true
   # Events
-  cp $build_dir_path/events/all_events.json.xz artifacts/$build_dir/
-  # ROS 2 msgs
-  cp $build_dir_path/events/all_events.json.xz artifacts/$build_dir/
-  # Module Docs
+  mkdir -p artifacts/$build_dir/events/
+  cp $build_dir_path/events/all_events.json.xz artifacts/$build_dir/events/ 2>/dev/null || true
   ls -la artifacts/$build_dir
   echo "----------"
 done
 
 if [ -d artifacts/px4_sitl_default ]; then
-  # general metadata
-  mkdir artifacts/_general/
-  cp artifacts/px4_sitl_default/airframes.xml artifacts/_general/
+  # general metadata (used by Flight Review and other downstream consumers)
+  mkdir -p artifacts/_general/
   # Airframe
-  cp artifacts/px4_sitl_default/airframes.xml artifacts/_general/
+  if [ -f artifacts/px4_sitl_default/airframes.xml ]; then
+    cp artifacts/px4_sitl_default/airframes.xml artifacts/_general/
+  else
+    echo "Error: expected 'artifacts/px4_sitl_default/airframes.xml' not found." >&2
+    exit 1
+  fi
   # Parameters
   cp artifacts/px4_sitl_default/parameters.xml artifacts/_general/
   cp artifacts/px4_sitl_default/parameters.json artifacts/_general/
@@ -40,9 +50,11 @@ if [ -d artifacts/px4_sitl_default ]; then
   cp artifacts/px4_sitl_default/actuators.json artifacts/_general/
   cp artifacts/px4_sitl_default/actuators.json.xz artifacts/_general/
   # Events
-  cp artifacts/px4_sitl_default/events/all_events.json.xz artifacts/_general/
-  # ROS 2 msgs
-  cp artifacts/px4_sitl_default/events/all_events.json.xz artifacts/_general/
-  # Module Docs
+  if [ -f artifacts/px4_sitl_default/events/all_events.json.xz ]; then
+    cp artifacts/px4_sitl_default/events/all_events.json.xz artifacts/_general/
+  else
+    echo "Error: expected 'artifacts/px4_sitl_default/events/all_events.json.xz' not found." >&2
+    exit 1
+  fi
   ls -la artifacts/_general/
 fi

Tools/ci/pr_comment.py

@@ -0,0 +1,95 @@
+#!/usr/bin/env python3
+"""Post, update, or delete a PR comment with deduplication.
+
+Uses hidden HTML markers to find existing comments and avoid duplicates.
+Reads comment body from stdin when posting or updating.
+
+Usage:
+    echo "comment body" | python3 pr_comment.py --marker pr-title --pr 123 --result fail
+    python3 pr_comment.py --marker pr-title --pr 123 --result pass
+
+Results:
+    fail  - post/update comment with body from stdin
+    warn  - post/update comment with body from stdin
+    pass  - delete existing comment if any
+
+Requires GH_TOKEN and GITHUB_REPOSITORY environment variables.
+"""
+
+import argparse
+import json
+import os
+import subprocess
+import sys
+
+
+def gh_api(endpoint: str, method: str = 'GET', body: dict | None = None) -> str:
+    """Call the GitHub API via gh cli."""
+    cmd = ['gh', 'api', endpoint, '-X', method]
+    if body:
+        for key, value in body.items():
+            cmd.extend(['-f', f'{key}={value}'])
+    result = subprocess.run(cmd, capture_output=True, text=True)
+    if result.returncode != 0 and method != 'DELETE':
+        print(f"gh api error: {result.stderr}", file=sys.stderr)
+    return result.stdout
+
+
+def find_comment(repo: str, pr: int, marker: str) -> str | None:
+    """Find an existing comment by its hidden marker. Returns comment ID or None."""
+    response = gh_api(f"repos/{repo}/issues/{pr}/comments?per_page=100")
+    try:
+        comments = json.loads(response)
+    except json.JSONDecodeError:
+        return None
+
+    if not isinstance(comments, list):
+        return None
+
+    for comment in comments:
+        if isinstance(comment, dict) and comment.get('body', '').startswith(marker):
+            return str(comment['id'])
+    return None
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description='Manage PR quality comments')
+    parser.add_argument('--marker', required=True,
+                        help='Marker name (e.g. pr-title, commit-msgs, pr-body)')
+    parser.add_argument('--pr', required=True, type=int,
+                        help='Pull request number')
+    parser.add_argument('--result', required=True, choices=['pass', 'fail', 'warn'],
+                        help='Check result: pass deletes comment, fail/warn posts it')
+    args = parser.parse_args()
+
+    repo = os.environ.get('GITHUB_REPOSITORY', '')
+    if not repo:
+        print("GITHUB_REPOSITORY not set", file=sys.stderr)
+        sys.exit(2)
+
+    marker = f"<!-- commit-quality-{args.marker} -->"
+    existing_id = find_comment(repo, args.pr, marker)
+
+    if args.result == 'pass':
+        if existing_id:
+            gh_api(f"repos/{repo}/issues/comments/{existing_id}", method='DELETE')
+        return
+
+    # Read comment body from stdin
+    body_content = sys.stdin.read().strip()
+    if not body_content:
+        print("No comment body provided on stdin", file=sys.stderr)
+        sys.exit(2)
+
+    full_body = f"{marker}\n{body_content}"
+
+    if existing_id:
+        gh_api(f"repos/{repo}/issues/comments/{existing_id}", method='PATCH',
+               body={'body': full_body})
+    else:
+        gh_api(f"repos/{repo}/issues/{args.pr}/comments", method='POST',
+               body={'body': full_body})
+
+
+if __name__ == '__main__':
+    main()

Tools/ci/test_metadata_sync.sh

@@ -0,0 +1,163 @@
+#!/usr/bin/env bash
+#
+# test_metadata_sync.sh - Test metadata_sync.sh locally using Docker
+#
+# Usage:
+#   Tools/ci/test_metadata_sync.sh [OPTIONS] [TYPES...]
+#
+# Options:
+#   --shell       Drop into interactive shell instead of running sync
+#   --verbose     Pass --verbose to metadata_sync.sh
+#   --skip-build  Skip SITL build (use existing build artifacts)
+#   --help        Show this help
+#
+# Types:
+#   Same as metadata_sync.sh: parameters, airframes, modules, msg_docs, uorb_graphs, failsafe_web, all
+#
+# Examples:
+#   # Test full regeneration
+#   Tools/ci/test_metadata_sync.sh all
+#
+#   # Test just parameters (faster)
+#   Tools/ci/test_metadata_sync.sh parameters
+#
+#   # Drop into shell for debugging
+#   Tools/ci/test_metadata_sync.sh --shell
+#
+#   # Skip build if you already have artifacts
+#   Tools/ci/test_metadata_sync.sh --skip-build --verbose all
+#
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+
+DOCKER_IMAGE="px4io/px4-dev:v1.17.0-alpha1"
+CONTAINER_NAME="px4-metadata-test-$$"
+
+SHELL_MODE=false
+VERBOSE=""
+SKIP_BUILD=false
+TYPES=()
+
+show_help() {
+    head -n 28 "$0" | tail -n +2 | sed 's/^# \?//'
+    exit 0
+}
+
+cleanup() {
+    echo "[test] Cleaning up container..."
+    docker rm -f "$CONTAINER_NAME" 2>/dev/null || true
+}
+
+parse_args() {
+    while [[ $# -gt 0 ]]; do
+        case "$1" in
+            --shell)
+                SHELL_MODE=true
+                shift
+                ;;
+            --verbose)
+                VERBOSE="--verbose"
+                shift
+                ;;
+            --skip-build)
+                SKIP_BUILD=true
+                shift
+                ;;
+            --help|-h)
+                show_help
+                ;;
+            -*)
+                echo "Unknown option: $1" >&2
+                exit 1
+                ;;
+            *)
+                TYPES+=("$1")
+                shift
+                ;;
+        esac
+    done
+
+    # Default to all types
+    if [[ ${#TYPES[@]} -eq 0 ]]; then
+        TYPES=("all")
+    fi
+}
+
+main() {
+    parse_args "$@"
+
+    cd "$REPO_ROOT"
+
+    echo "[test] Using Docker image: $DOCKER_IMAGE"
+    echo "[test] Repository root: $REPO_ROOT"
+
+    # Pull image if not present
+    if ! docker image inspect "$DOCKER_IMAGE" >/dev/null 2>&1; then
+        echo "[test] Pulling Docker image..."
+        docker pull "$DOCKER_IMAGE"
+    fi
+
+    trap cleanup EXIT
+
+    # Handle git worktrees: the .git file points to the main repo's .git directory
+    # We need to mount that directory too so git works inside the container
+    local git_mounts=()
+    if [[ -f "$REPO_ROOT/.git" ]]; then
+        # It's a worktree - read the gitdir path and mount it
+        local gitdir
+        gitdir=$(grep '^gitdir:' "$REPO_ROOT/.git" | cut -d' ' -f2)
+        if [[ -n "$gitdir" ]]; then
+            # Mount the gitdir at the same path so the .git file reference works
+            git_mounts+=("-v" "$gitdir:$gitdir:ro")
+            # Also need the main .git directory (parent of worktrees/)
+            local main_git_dir
+            main_git_dir=$(dirname "$(dirname "$gitdir")")
+            git_mounts+=("-v" "$main_git_dir:$main_git_dir:ro")
+            echo "[test] Detected git worktree, mounting git directories"
+        fi
+    fi
+
+    if [[ "$SHELL_MODE" == "true" ]]; then
+        echo "[test] Starting interactive shell..."
+        echo "[test] Run: Tools/ci/metadata_sync.sh --generate --sync all"
+        docker run -it --rm \
+            --name "$CONTAINER_NAME" \
+            -v "$REPO_ROOT:/src" \
+            "${git_mounts[@]}" \
+            -w /src \
+            "$DOCKER_IMAGE" \
+            /bin/bash
+    else
+        echo "[test] Running metadata sync for: ${TYPES[*]}"
+
+        # Build the command
+        local cmd=""
+
+        if [[ "$SKIP_BUILD" == "false" ]]; then
+            cmd="Tools/ci/metadata_sync.sh --generate --sync $VERBOSE ${TYPES[*]}"
+        else
+            cmd="Tools/ci/metadata_sync.sh --sync $VERBOSE ${TYPES[*]}"
+        fi
+
+        echo "[test] Command: $cmd"
+
+        docker run --rm \
+            --name "$CONTAINER_NAME" \
+            -v "$REPO_ROOT:/src" \
+            "${git_mounts[@]}" \
+            -w /src \
+            "$DOCKER_IMAGE" \
+            /bin/bash -c "$cmd"
+
+        echo ""
+        echo "[test] Done! Check git status for changes:"
+        echo "  git status -s docs/"
+        echo ""
+        echo "[test] To see what changed:"
+        echo "  git diff docs/"
+    fi
+}
+
+main "$@"

Tools/docker_run.sh

@@ -1,47 +1,27 @@
 #! /bin/bash
 
 if [ -z ${PX4_DOCKER_REPO+x} ]; then
-	echo "guessing PX4_DOCKER_REPO based on input";
-	if [[ $@ =~ .*clang.* ]] || [[ $@ =~ .*scan-build.* ]]; then
-		# clang tools
-		PX4_DOCKER_REPO="px4io/px4-dev-clang:2021-02-04"
-	elif [[ $@ =~ .*tests* ]]; then
-		# run all tests with simulation
-		PX4_DOCKER_REPO="px4io/px4-dev-simulation-bionic:2021-12-11"
-	fi
+	PX4_DOCKER_REPO="px4io/px4-dev:v1.17.0-beta1"
 else
 	echo "PX4_DOCKER_REPO is set to '$PX4_DOCKER_REPO'";
 fi
 
-# otherwise default to nuttx
-if [ -z ${PX4_DOCKER_REPO+x} ]; then
-	PX4_DOCKER_REPO="px4io/px4-dev:v1.16.0-rc1-258-g0369abd556"
-fi
-
 echo "PX4_DOCKER_REPO: $PX4_DOCKER_REPO";
 
-PWD=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
-SRC_DIR=$PWD/../
+SCRIPT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+SRC_DIR=${SCRIPT_DIR}/../
 
 CCACHE_DIR=${HOME}/.ccache
 mkdir -p "${CCACHE_DIR}"
 
 docker run -it --rm -w "${SRC_DIR}" \
 	--user="$(id -u):$(id -g)" \
-	--env=AWS_ACCESS_KEY_ID \
-	--env=AWS_SECRET_ACCESS_KEY \
-	--env=BRANCH_NAME \
 	--env=CCACHE_DIR="${CCACHE_DIR}" \
-	--env=CI \
-	--env=CODECOV_TOKEN \
-	--env=COVERALLS_REPO_TOKEN \
 	--env=PX4_ASAN \
 	--env=PX4_MSAN \
 	--env=PX4_TSAN \
 	--env=PX4_UBSAN \
-	--env=TRAVIS_BRANCH \
-	--env=TRAVIS_BUILD_ID \
 	--publish 14556:14556/udp \
 	--volume=${CCACHE_DIR}:${CCACHE_DIR}:rw \
 	--volume=${SRC_DIR}:${SRC_DIR}:rw \
-	${PX4_DOCKER_REPO} /bin/bash -c "$1 $2 $3"
+	${PX4_DOCKER_REPO} /bin/bash -c "$@"

Tools/module_config/generate_actuators_metadata.py

@@ -234,14 +234,14 @@ def get_actuator_output(yaml_config, output_functions, timer_config_file, verbos
         param_prefix = process_param_prefix(group['param_prefix'])
         standard_params = group.get('standard_params', {})
         standard_params_array = [
-            ( 'function', 'Function', 'FUNC', False ),
-            ( 'disarmed', 'Disarmed', 'DIS', False ),
-            ( 'min', 'Minimum', 'MIN', False ),
-            ( 'max', 'Maximum', 'MAX', False ),
-            ( 'center', 'Center\n(for Servos)', 'CENT', False ),
-            ( 'failsafe', 'Failsafe', 'FAIL', True ),
+            ( 'function', 'Function', 'FUNC', False, True ),
+            ( 'disarmed', 'Disarmed', 'DIS', False, True ),
+            ( 'min', 'Minimum', 'MIN', False, True ),
+            ( 'center', 'Center\n(for Servos)', 'CENT', False, False ),
+            ( 'max', 'Maximum', 'MAX', False, True ),
+            ( 'failsafe', 'Failsafe', 'FAIL', True, True ),
             ]
-        for key, label, param_suffix, advanced in standard_params_array:
+        for key, label, param_suffix, advanced, has_function in standard_params_array:
             show_if = None
             if key in standard_params and 'show_if' in standard_params[key]:
                 show_if = standard_params[key]['show_if']
@@ -250,13 +250,12 @@ def get_actuator_output(yaml_config, output_functions, timer_config_file, verbos
                 param = {
                         'label': label,
                         'name': param_prefix+'_'+param_suffix+'${i}',
-                        'function': key,
                     }
+                if has_function: param['function'] = key
                 if advanced: param['advanced'] = True
                 if show_if: param['show-if'] = show_if
                 per_channel_params.append(param)
 
-
         param = {
                 'label': 'Rev Range\n(for Servos)',
                 'name': param_prefix+'_REV',

Tools/module_config/generate_params.py

@@ -312,11 +312,7 @@ When set to -1 (default), the value depends on the function (see {:}).
                 if standard_params[key]['max'] >= 1<<16:
                     raise Exception('maximum value for {:} expected <= {:} (got {:})'.format(key, 1<<16, standard_params[key]['max']))
 
-                if key == 'failsafe':
-                    standard_params[key]['default'] = -1
-                    standard_params[key]['min'] = -1
-
-                if key == 'center':
+                if key == 'failsafe' or key == 'center':
                     standard_params[key]['default'] = -1
                     standard_params[key]['min'] = -1
 

Tools/msg/generate_msg_docs.py

@@ -17,10 +17,10 @@ VALID_FIELDS = { #Note, also have to add the message types as those can be field
     'uint32'
 }
 
-ALLOWED_UNITS = set(["m", "m/s", "m/s^2", "(m/s)^2", "deg", "deg/s", "rad", "rad/s", "rad^2", "rpm" ,"V", "A", "mA", "mAh", "W", "dBm", "h", "s", "ms", "us", "Ohm", "MB", "Kb/s", "degC","Pa","%","-"])
+ALLOWED_UNITS = set(["m", "m/s", "m/s^2", "(m/s)^2", "deg", "deg/s", "rad", "rad/s", "rad^2", "rpm" ,"V", "A", "mA", "mAh", "W", "Wh", "dBm", "h", "minutes", "s", "ms", "us", "Ohm", "MB", "Kb/s", "degC","Pa", "%", "norm", "-"])
 invalid_units = set()
-ALLOWED_FRAMES = set(["NED","Body"])
-ALLOWED_INVALID_VALUES = set(["NaN", "0"])
+ALLOWED_FRAMES = set(["NED", "Body", "FRD", "ENU"])
+ALLOWED_INVALID_VALUES = set(["NaN", "0", "-1"])
 ALLOWED_CONSTANTS_NOT_IN_ENUM = set(["ORB_QUEUE_LENGTH","MESSAGE_VERSION"])
 
 class Error:
@@ -36,14 +36,14 @@ class Error:
 
 
         if 'trailing_whitespace' == self.type:
-            if self.issueString.strip():    
+            if self.issueString.strip():
                 print(f"NOTE: Line has trailing whitespace ({self.message}: {self.linenumber}): {self.issueString}")
             else:
                 print(f"NOTE: Line has trailing whitespace ({self.message}: {self.linenumber})")
         elif 'leading_whitespace_field_or_constant' == self.type:
-            print(f"NOTE: Whitespace before field or constant ({self.message}: {self.linenumber}): {self.issueString}")             
+            print(f"NOTE: Whitespace before field or constant ({self.message}: {self.linenumber}): {self.issueString}")
         elif 'field_or_constant_has_multiple_whitepsace' == self.type:
-            print(f"NOTE: Field/constant has more than one sequential whitespace character ({self.message}: {self.linenumber}): {self.issueString}") 
+            print(f"NOTE: Field/constant has more than one sequential whitespace character ({self.message}: {self.linenumber}): {self.issueString}")
         elif 'empty_start_line' == self.type:
             print(f"NOTE: Empty line at start of file ({self.message}: {self.linenumber})")
         elif 'internal_comment' == self.type:
@@ -191,7 +191,7 @@ class CommandParam:
                             if not "unknown_frame" in self.parent.errors:
                                 self.parent.errors["unknown_frame"] = []
                             self.parent.errors["unknown_frame"].append(error)
-                        """    
+                        """
                     else:
                         print(f"WARNING: Unhandled metadata in message comment: {item}")
                         # TODO - report errors for different kinds of metadata
@@ -202,9 +202,9 @@ class CommandParam:
 
                     if item == "-":
                         unit = ""
-                    
+
                     if unit and unit not in self.units:
-                        self.units.append(unit) 
+                        self.units.append(unit)
 
                     if unit not in ALLOWED_UNITS:
                         invalid_units.add(unit)
@@ -221,7 +221,7 @@ class CommandParam:
         print(f"   paramText: {self.paramText}\n  unit:  {self.units}\n  enums: {self.enums}\n  lineNumber: {self.lineNumber}\n  range: {self.range}\n  minValue: {self.minValue}\n  maxValue: {self.maxValue}\n  invalidValue: {self.invalidValue}\n  frameValue: {self.frameValue}\n  parent: {self.parent}\n  ")
 
 
-        
+
 class CommandConstant:
     """
     Represents a constant that is a command definition.
@@ -252,9 +252,9 @@ class CommandConstant:
         if not self.comment: # This is an bug for a command
             #print(f"Debug WARNING: NO COMMENT in CommandConstant: {self.name}")  ## TODO make into ERROR
             return
-            
+
         # Parse command comment to get the description and parameters.
-        # print(f"Debug CommandConstant: {self.comment}") 
+        # print(f"Debug CommandConstant: {self.comment}")
         if not "|" in self.comment:
             # This is an error for a command constant
             error = Error("command_no_params_pipes", self.parent.filename, self.line_number, self.comment, self.name)
@@ -263,7 +263,7 @@ class CommandConstant:
                 self.parent.errors["command_no_params_pipes"] = []
             self.parent.errors["command_no_params_pipes"].append(error)
             return
-        
+
         # Split on pipes
         commandSplit = self.comment.split("|")
         if len(commandSplit) < 9:
@@ -318,7 +318,7 @@ Param | Units | Range/Enum | Description
 
                 output+=f"{i} | {", ".join(val.units)}|{', '.join(f"[{e}](#{e})" for e in val.enums)}{rangeVal} | {val.description}\n"
             else:
-                output+=f"{i} | | | ?\n"                
+                output+=f"{i} | | | ?\n"
 
         output+=f"\n"
         return output
@@ -419,7 +419,7 @@ class MessageField:
 class UORBMessage:
     """
     Represents a whole message, including fields, enums, commands, constants.
-    The parser function delegates the parsing of each part of the message to 
+    The parser function delegates the parsing of each part of the message to
     more appropriate classes, once the specific type of line has been identified.
     """
 
@@ -511,11 +511,11 @@ pageClass: is-wide-page
             markdown += "--- | --- | --- |---\n"
             for name, command in self.commandConstants.items():
                 description = f" {command.comment} " if enum.comment else " "
-                markdown += f'<a href="#{name}"></a> {name} | `{command.type}` | {command.value} |{description}\n'            
+                markdown += f'<a id="#{name}"></a> {name} | `{command.type}` | {command.value} |{description}\n'
             """
             for commandConstant in self.commandConstants.values():
                 #print(commandConstant)
-                markdown += commandConstant.markdown_out()     
+                markdown += commandConstant.markdown_out()
 
         # Generate enum docs
         if len(self.enums) > 0:
@@ -529,7 +529,7 @@ pageClass: is-wide-page
 
                 for enumValueName, enumValue in enum.enumValues.items():
                     description = f" {enumValue.comment} " if enumValue.comment else " "
-                    markdown += f'<a href="#{enumValueName}"></a> {enumValueName} | `{enumValue.type}` | {enumValue.value} |{description}\n'
+                    markdown += f'<a id="#{enumValueName}"></a> {enumValueName} | `{enumValue.type}` | {enumValue.value} |{description}\n'
 
         # Generate table for constants docs
         if len(self.constantFields) > 0:
@@ -538,7 +538,7 @@ pageClass: is-wide-page
             markdown += "--- | --- | --- |---\n"
             for name, enum in self.constantFields.items():
                 description = f" {enum.comment} " if enum.comment else " "
-                markdown += f'<a href="#{name}"></a> {name} | `{enum.type}` | {enum.value} |{description}\n'
+                markdown += f'<a id="#{name}"></a> {name} | `{enum.type}` | {enum.value} |{description}\n'
 
 
 
@@ -635,8 +635,8 @@ pageClass: is-wide-page
             temp = fieldOrConstant.split("=")
             value = temp[-1]
             typeAndName = temp[0].split(" ")
-            type = typeAndName[0]
-            name = typeAndName[1]
+            type = typeAndName[0].strip()
+            name = typeAndName[1].strip()
             if name.startswith("VEHICLE_CMD_") and parentMessage.name == 'VehicleCommand': #it's a command.
                 #print(f"DEBUG: startswith VEHICLE_CMD_ {name}")
                 commandConstant = CommandConstant(name, type, value, comment, line_number, parentMessage)
@@ -708,7 +708,7 @@ pageClass: is-wide-page
                     if stripped_line.startswith("#"):
                         # Its an internal comment
                         stripped_line=stripped_line[1:].strip()
-                        
+
                         if stripped_line:
                             #print(f"{self.filename}: Internal comment: [{line_number}]\n {line}")
                             error = Error("internal_comment", self.filename, line_number, line)
@@ -723,16 +723,16 @@ pageClass: is-wide-page
                             self.errors["internal_comment_empty"].append(error)
                             #pass # Empty comment
                         continue
-                    
+
                     # Must be a field or a comment.
                     self.handleField(line, line_number, parentMessage=self)
 
             # Fix up topics if the topic is empty
             def camel_to_snake(name):
-                # Match upper case not at start of string
-                s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
-                # Handle cases with multiple capital first letter
-                return re.sub('([A-Z]+)([A-Z][a-z]*)', r'\1_\2', s1).lower()
+                # Insert underscore between lowercase/digit and uppercase letter
+                s1 = re.sub('([a-z0-9])([A-Z])', r'\1_\2', name)
+                # Insert underscore between consecutive uppercase and uppercase+lowercase
+                return re.sub('([A-Z]+)([A-Z][a-z])', r'\1_\2', s1).lower()
 
             defaultTopic = camel_to_snake(self.name)
             if len(self.topics) == 0:
@@ -745,7 +745,7 @@ pageClass: is-wide-page
                     error = Error("topic_error", self.filename, "", f"WARNING: TOPIC {defaultTopic} unnecessarily declared for {self.name}")
                 else:
                     # Declared topic is not default topic
-                    error = Error("topic_error", self.filename, "", f"NOTE: TOPIC {self.topics[1]}: Only Declared topic is not default topic {defaultTopic} for {self.name}")
+                    error = Error("topic_error", self.filename, "", f"NOTE: TOPIC {self.topics[0]}: Only Declared topic is not default topic {defaultTopic} for {self.name}")
                 if not "topic_error" in self.errors:
                     self.errors["topic_error"] = []
                     self.errors["topic_error"].append(error)
@@ -833,11 +833,9 @@ def generate_dds_yaml_doc(allMessageFiles, output_file = 'dds_topics.md'):
         for message in data["subscriptions"]:
             all_message_types.add(message['type'].split("::")[-1])
             all_topics.add(message['topic'].split('/')[-1])
-        if data["subscriptions_multi"]: # There is none now
-            dds_markdown += "None\n"
-            for message in data["subscriptions_multi"]:
-                all_message_types.add(message['type'].split("::")[-1])
-                all_topics.add(message['topic'].split('/')[-1])
+        for message in (data.get("subscriptions_multi") or []):
+            all_message_types.add(message['type'].split("::")[-1])
+            all_topics.add(message['topic'].split('/')[-1])
         for message in allMessageFiles:
             all_messages_in_source.add(message.split('/')[-1].split('.')[0])
         messagesNotExported = all_messages_in_source - all_message_types
@@ -874,13 +872,17 @@ Topic | Type| Rate Limit
 
         dds_markdown += "\n## Subscriptions Multi\n\n"
 
-        if not data["subscriptions_multi"]: # There is none now
+        subscriptions_multi = data.get("subscriptions_multi") or []
+        if not subscriptions_multi:
             dds_markdown += "None\n"
         else:
-            print("Warning - we now have subscription_multi data - check format")
-            dds_markdown += "Topic | Type\n--- | ---\n"
-            for message in data["subscriptions_multi"]:
-                dds_markdown += f"{message['topic']} | {message['type']}\n"
+            dds_markdown += "Topic | Type | Route Field | Max Instances\n--- | --- | --- | ---\n"
+            for message in subscriptions_multi:
+                type = message['type']
+                px4Type = type.split("::")[-1]
+                route_field = f"`{message['route_field']}`" if 'route_field' in message else "-"
+                max_instances = message.get('max_instances', '-')
+                dds_markdown += f"{message['topic']} | [{type}](../msg_docs/{px4Type}.md) | {route_field} | {max_instances}\n"
 
         if messagesNotExported:
             # Print the topics that are not exported to DDS
@@ -944,9 +946,6 @@ if __name__ == "__main__":
 
     for msg_file in msg_files:
         # Add messages to set of allowed types (compound types)
-        #msg_type = msg_file.rsplit('/')[-1]
-        #msg_type = msg_type.rsplit('\\')[-1]
-        #msg_type = msg_type.rsplit('.')[0]
         msg_name = os.path.splitext(os.path.basename(msg_file))[0]
         msgTypes.add(msg_name)
 

Tools/px_mkfw.py

@@ -42,6 +42,7 @@
 import argparse
 import json
 import base64
+import os
 import zlib
 import time
 import subprocess
@@ -99,14 +100,13 @@ if args.summary != None:
 if args.description != None:
 	desc['description']	= str(args.description)
 if args.git_identity != None:
-	cmd = "git --git-dir '{:}/.git' describe --exclude ext/* --always --tags".format(args.git_identity)
-	p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout
-	desc['git_identity']	= p.read().strip().decode('utf-8')
-	p.close()
-	cmd = "git --git-dir '{:}/.git' rev-parse --verify HEAD".format(args.git_identity)
-	p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout
-	desc['git_hash']	= p.read().strip().decode('utf-8')
-	p.close()
+	git_dir = os.path.join(args.git_identity, '.git')
+	p = subprocess.run(["git", "--git-dir", git_dir, "describe", "--exclude", "ext/*", "--always", "--tags"],
+		stdout=subprocess.PIPE, text=True)
+	desc['git_identity']	= p.stdout.strip()
+	p = subprocess.run(["git", "--git-dir", git_dir, "rev-parse", "--verify", "HEAD"],
+		stdout=subprocess.PIPE, text=True)
+	desc['git_hash']	= p.stdout.strip()
 if args.parameter_xml != None:
 	f = open(args.parameter_xml, "rb")
 	bytes = f.read()

Tools/run-clang-tidy.py

@@ -144,6 +144,8 @@ def main():
                       help='number of tidy instances to be run in parallel.')
   parser.add_argument('files', nargs='*', default=['.*'],
                       help='files to be processed (regex on path)')
+  parser.add_argument('-exclude', dest='exclude', default=None,
+                      help='regular expression matching files to exclude')
   parser.add_argument('-fix', action='store_true', help='apply fix-its')
   parser.add_argument('-format', action='store_true', help='Reformat code '
                       'after applying fixes')
@@ -192,6 +194,7 @@ def main():
 
   # Build up a big regexy filter from all command line arguments.
   file_name_re = re.compile('(' + ')|('.join(args.files) + ')')
+  exclude_re = re.compile(args.exclude) if args.exclude else None
 
   try:
     # Spin up a bunch of tidy-launching threads.
@@ -205,6 +208,8 @@ def main():
     # Fill the queue with files.
     for name in files:
       if file_name_re.search(name):
+        if exclude_re and exclude_re.search(name):
+          continue
         queue.put(name)
 
     # Wait for all threads to be done.

Tools/setup/docker-entrypoint.sh

@@ -4,7 +4,7 @@ GREEN='\033[0;32m'
 NO_COLOR='\033[0m' # No Color
 SCRIPTID="${GREEN}[docker-entrypoint.sh]${NO_COLOR}"
 
-echo -e "$SCRIPTID Starting"
+echo -e "$SCRIPTID $( uname -m ) | $(date -u +%FT%TZ)"
 
 # Start virtual X server in the background
 # - DISPLAY default is :99, set in dockerfile
@@ -22,6 +22,4 @@ if [ -n "${ROS_DISTRO}" ]; then
 	source "/opt/ros/$ROS_DISTRO/setup.bash"
 fi
 
-echo -e "$SCRIPTID ($( uname -m ))"
-
 exec "$@"

Tools/setup/macos.sh

@@ -74,7 +74,7 @@ python3 -m pip install --user -r ${DIR}/requirements.txt
 
 # Optional, but recommended additional simulation tools:
 if [[ $INSTALL_SIM == "--sim-tools" ]]; then
-	if brew ls --versions px4-sim > /dev/null; then
+	if ! brew ls --versions px4-sim > /dev/null; then
 		brew install px4-sim
 	elif [[ $REINSTALL_FORMULAS == "--reinstall" ]]; then
 		brew reinstall px4-sim

Tools/setup/ubuntu.sh

@@ -6,9 +6,9 @@ set -e
 ## Can also be used in docker.
 ##
 ## Installs:
-## - Common dependencies and tools for nuttx, jMAVSim, Gazebo
+## - Common dependencies and tools for nuttx, Gazebo
 ## - NuttX toolchain (omit with arg: --no-nuttx)
-## - jMAVSim and Gazebo9 simulator (omit with arg: --no-sim-tools)
+## - Gazebo Harmonic simulator (omit with arg: --no-sim-tools)
 ##
 
 INSTALL_NUTTX="true"
@@ -196,6 +196,11 @@ if [[ $INSTALL_NUTTX == "true" ]]; then
 	fi
 fi
 
+if [[ "${UBUNTU_RELEASE}" == "25.10" ]]; then
+	echo "[ubuntu.sh] Gazebo binaries are not available for 25.10, skipping installation"
+	INSTALL_SIM="false"
+fi
+
 # Simulation tools
 if [[ $INSTALL_SIM == "true" ]]; then
 
@@ -207,37 +212,18 @@ if [[ $INSTALL_SIM == "true" ]]; then
 		bc \
 		;
 
-	# Gazebo / Gazebo classic installation
-	if [[ "${UBUNTU_RELEASE}" == "18.04" || "${UBUNTU_RELEASE}" == "20.04" ]]; then
-		sudo sh -c 'echo "deb http://packages.osrfoundation.org/gazebo/ubuntu-stable `lsb_release -cs` main" > /etc/apt/sources.list.d/gazebo-stable.list'
-		wget http://packages.osrfoundation.org/gazebo.key -O - | sudo apt-key add -
-		# Update list, since new gazebo-stable.list has been added
-		sudo apt-get update -y --quiet
+	# Gazebo Harmonic installation (Ubuntu 22.04+)
+	echo "[ubuntu.sh] Gazebo (Harmonic) will be installed"
+	# Add Gazebo binary repository
+	sudo wget https://packages.osrfoundation.org/gazebo.gpg -O /usr/share/keyrings/pkgs-osrf-archive-keyring.gpg
+	echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/pkgs-osrf-archive-keyring.gpg] http://packages.osrfoundation.org/gazebo/ubuntu-stable $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/gazebo-stable.list > /dev/null
+	sudo apt-get update -y --quiet
 
-		# Install Gazebo classic
-		if [[ "${UBUNTU_RELEASE}" == "18.04" ]]; then
-			gazebo_classic_version=9
-			gazebo_packages="gazebo$gazebo_classic_version libgazebo$gazebo_classic_version-dev"
-		else
-			# default and Ubuntu 20.04
-			gazebo_classic_version=11
-			gazebo_packages="gazebo$gazebo_classic_version libgazebo$gazebo_classic_version-dev"
-		fi
-	else
-		# Expects Ubuntu 22.04 > by default
-		echo "[ubuntu.sh] Gazebo (Harmonic) will be installed"
-		echo "[ubuntu.sh] Earlier versions will be removed"
-		# Add Gazebo binary repository
-		sudo wget https://packages.osrfoundation.org/gazebo.gpg -O /usr/share/keyrings/pkgs-osrf-archive-keyring.gpg
-		echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/pkgs-osrf-archive-keyring.gpg] http://packages.osrfoundation.org/gazebo/ubuntu-stable $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/gazebo-stable.list > /dev/null
-		sudo apt-get update -y --quiet
+	# Install Gazebo
+	gazebo_packages="gz-harmonic libunwind-dev"
 
-		# Install Gazebo
-		gazebo_packages="gz-harmonic libunwind-dev"
-
-		if [[ "${UBUNTU_RELEASE}" == "24.04" ]]; then
-			gazebo_packages="$gazebo_packages cppzmq-dev"
-		fi
+	if [[ "${UBUNTU_RELEASE}" == "24.04" ]]; then
+		gazebo_packages="$gazebo_packages cppzmq-dev"
 	fi
 
 	sudo DEBIAN_FRONTEND=noninteractive apt-get -y --quiet --no-install-recommends install \

Tools/simulation/collect_swarm_ulogs.py

@@ -0,0 +1,142 @@
+#!/usr/bin/env python3
+"""Collect ULog files from SIH swarm simulation instances.
+
+Gathers .ulg files from per-instance log directories and copies them
+into a single output folder with filenames that identify the source instance.
+"""
+
+import argparse
+import glob
+import os
+import shutil
+import sys
+from datetime import datetime
+from pathlib import Path
+
+
+def find_repo_root() -> Path:
+    """Walk up from script location to find the repository root."""
+    path = Path(__file__).resolve().parent
+    while path != path.parent:
+        if (path / "ROMFS").is_dir() and (path / "src").is_dir():
+            return path
+        path = path.parent
+    return Path(__file__).resolve().parent.parent.parent
+
+
+def parse_instance_number(filepath: str) -> int | None:
+    """Extract the instance number from a path containing instance_N."""
+    parts = Path(filepath).parts
+    for part in parts:
+        if part.startswith("instance_"):
+            try:
+                return int(part.split("_", 1)[1])
+            except (ValueError, IndexError):
+                continue
+    return None
+
+
+def collect_ulogs(build_dir: Path, output_dir: Path, max_instances: int | None) -> None:
+    """Find and copy ULog files from swarm instance directories."""
+    pattern = str(build_dir / "instance_*" / "log" / "**" / "*.ulg")
+    ulog_files = sorted(glob.glob(pattern, recursive=True))
+
+    if not ulog_files:
+        print(f"No ULog files found matching: {pattern}")
+        print()
+        print("Troubleshooting:")
+        print(f"  - Verify build directory exists: {build_dir}")
+        print(f"  - Check for instance_* subdirectories in {build_dir}")
+        print("  - Ensure the swarm simulation has run and produced logs")
+        sys.exit(1)
+
+    # Filter by instance count if specified.
+    if max_instances is not None:
+        ulog_files = [
+            f for f in ulog_files
+            if (n := parse_instance_number(f)) is not None and n < max_instances
+        ]
+
+    if not ulog_files:
+        assert max_instances is not None
+        print(f"No ULog files found for the requested instance range (0..{max_instances - 1}).")
+        sys.exit(1)
+
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    total_size = 0
+    instances_seen: set[int] = set()
+    copied = 0
+
+    for src in ulog_files:
+        instance = parse_instance_number(src)
+        if instance is None:
+            print(f"  skipping (could not determine instance): {src}")
+            continue
+
+        instances_seen.add(instance)
+        original_name = Path(src).name
+        dest_name = f"drone_{instance:02d}_{original_name}"
+        dest_path = output_dir / dest_name
+
+        shutil.copy2(src, dest_path)
+        file_size = os.path.getsize(src)
+        total_size += file_size
+        copied += 1
+        print(f"  [{instance:02d}] {original_name} ({file_size / 1024:.1f} KB)")
+
+    print()
+    print("Summary")
+    print("-" * 40)
+    print(f"  Files collected : {copied}")
+    print(f"  Instances       : {sorted(instances_seen)}")
+    print(f"  Total size      : {total_size / (1024 * 1024):.2f} MB")
+    print(f"  Output directory: {output_dir.resolve()}")
+
+
+def main() -> None:
+    repo_root = find_repo_root()
+    default_build = str(repo_root / "build" / "px4_sitl_sih")
+    timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
+
+    parser = argparse.ArgumentParser(
+        description="Collect ULog files from SIH swarm simulation instances.",
+    )
+    parser.add_argument(
+        "--build-dir",
+        default=default_build,
+        help=f"Path to the build directory (default: {default_build})",
+    )
+    parser.add_argument(
+        "--output-dir",
+        default=None,
+        help="Output directory (default: swarm_ulogs_YYYYMMDD_HHMMSS)",
+    )
+    parser.add_argument(
+        "--instances",
+        type=int,
+        default=None,
+        help="Number of instances to collect from (default: auto-detect)",
+    )
+
+    args = parser.parse_args()
+
+    build_dir = Path(args.build_dir)
+    if not build_dir.is_dir():
+        print(f"Error: build directory does not exist: {build_dir}")
+        sys.exit(1)
+
+    if args.output_dir is not None:
+        output_dir = Path(args.output_dir)
+    else:
+        output_dir = Path(f"swarm_ulogs_{timestamp}")
+
+    print(f"Collecting ULog files from: {build_dir}")
+    print(f"Output directory: {output_dir}")
+    print()
+
+    collect_ulogs(build_dir, output_dir, args.instances)
+
+
+if __name__ == "__main__":
+    main()

Tools/simulation/generate_swarm_ulogs.py

@@ -0,0 +1,487 @@
+#!/usr/bin/env python3
+"""Generate synthetic ULog files for testing mavsim-viewer swarm replay.
+
+Creates N drone ULog files with crafted trajectories in valid ULog binary
+format, without requiring any real PX4 simulation.
+"""
+
+import argparse
+import json
+import math
+import os
+import struct
+
+
+# ---------------------------------------------------------------------------
+# ULog binary writer
+# ---------------------------------------------------------------------------
+
+ULOG_MAGIC = b'\x55\x4c\x6f\x67\x01\x12\x35'
+ULOG_VERSION = 1
+
+
+class ULogWriter:
+    """Write a minimal but valid ULog binary file."""
+
+    def __init__(self, path: str, timestamp_us: int = 0):
+        self._path = path
+        self._fp = open(path, 'wb')
+        self._msg_id_counter = 0
+        self._subscriptions: dict[str, int] = {}  # topic_name -> msg_id
+        self._write_header(timestamp_us)
+        self._write_flag_bits()
+
+    # -- low-level helpers --------------------------------------------------
+
+    def _write_raw(self, data: bytes):
+        self._fp.write(data)
+
+    def _write_message(self, msg_type: int, payload: bytes):
+        """Write a ULog message: uint16 size + uint8 type + payload."""
+        self._write_raw(struct.pack('<HB', len(payload), msg_type))
+        self._write_raw(payload)
+
+    def _write_header(self, timestamp_us: int):
+        self._write_raw(ULOG_MAGIC)
+        self._write_raw(struct.pack('<BQ', ULOG_VERSION, timestamp_us))
+
+    def _write_flag_bits(self):
+        # 'B' message: 8 compat + 8 incompat + 3*uint64 appended offsets
+        payload = b'\x00' * 8 + b'\x00' * 8 + struct.pack('<QQQ', 0, 0, 0)
+        self._write_message(0x42, payload)
+
+    # -- definition messages ------------------------------------------------
+
+    def write_format(self, fmt_string: str):
+        """Write a Format ('F') definition message.
+
+        fmt_string example: "vehicle_local_position:uint64_t timestamp;float x;float y"
+        """
+        payload = fmt_string.encode('ascii')
+        self._write_message(0x46, payload)
+
+    def write_info(self, key: str, value: str):
+        """Write an Info ('I') message with a string value."""
+        key_with_type = f"char[{len(value)}] {key}"
+        key_bytes = key_with_type.encode('ascii')
+        value_bytes = value.encode('ascii')
+        payload = struct.pack('<B', len(key_bytes)) + key_bytes + value_bytes
+        self._write_message(0x49, payload)
+
+    def add_subscription(self, topic_name: str, multi_id: int = 0) -> int:
+        """Write an AddSubscription ('A') message. Returns the assigned msg_id."""
+        msg_id = self._msg_id_counter
+        self._msg_id_counter += 1
+        self._subscriptions[topic_name] = msg_id
+        name_bytes = topic_name.encode('ascii')
+        payload = struct.pack('<BH', multi_id, msg_id) + name_bytes
+        self._write_message(0x41, payload)
+        return msg_id
+
+    def write_data(self, topic_name: str, data_bytes: bytes):
+        """Write a Data ('D') message for a subscribed topic.
+
+        data_bytes must be the fully serialized payload (starting with
+        uint64 timestamp) matching the format definition.
+        """
+        msg_id = self._subscriptions[topic_name]
+        payload = struct.pack('<H', msg_id) + data_bytes
+        self._write_message(0x44, payload)
+
+    def close(self):
+        self._fp.close()
+
+
+# ---------------------------------------------------------------------------
+# Topic serialization helpers
+# ---------------------------------------------------------------------------
+
+def pack_vehicle_local_position(timestamp_us: int, x: float, y: float, z: float,
+                                 vx: float, vy: float, vz: float,
+                                 ref_lat: float, ref_lon: float, ref_alt: float) -> bytes:
+    return struct.pack('<Qffffffddf',
+                       timestamp_us, x, y, z, vx, vy, vz,
+                       ref_lat, ref_lon, ref_alt)
+
+
+def pack_vehicle_attitude(timestamp_us: int, q: tuple[float, ...]) -> bytes:
+    return struct.pack('<Qffff', timestamp_us, q[0], q[1], q[2], q[3])
+
+
+def pack_vehicle_global_position(timestamp_us: int, lat: float, lon: float, alt: float) -> bytes:
+    return struct.pack('<Qddf', timestamp_us, lat, lon, alt)
+
+
+def pack_vehicle_status(timestamp_us: int, vehicle_type: int, nav_state: int) -> bytes:
+    return struct.pack('<QBB', timestamp_us, vehicle_type, nav_state)
+
+
+# ---------------------------------------------------------------------------
+# Format definition strings (must match pack functions above)
+# ---------------------------------------------------------------------------
+
+FMT_LOCAL_POS = (
+    "vehicle_local_position:"
+    "uint64_t timestamp;"
+    "float x;float y;float z;"
+    "float vx;float vy;float vz;"
+    "double ref_lat;double ref_lon;float ref_alt"
+)
+
+FMT_ATTITUDE = (
+    "vehicle_attitude:"
+    "uint64_t timestamp;"
+    "float[4] q"
+)
+
+FMT_GLOBAL_POS = (
+    "vehicle_global_position:"
+    "uint64_t timestamp;"
+    "double lat;double lon;float alt"
+)
+
+FMT_STATUS = (
+    "vehicle_status:"
+    "uint64_t timestamp;"
+    "uint8_t vehicle_type;uint8_t nav_state"
+)
+
+# ---------------------------------------------------------------------------
+# Trajectory math
+# ---------------------------------------------------------------------------
+
+REF_LAT = 47.397742
+REF_LON = 8.545594
+REF_ALT = 488.0
+
+NAV_TAKEOFF = 2
+NAV_OFFBOARD = 14
+NAV_LAND = 18
+
+
+def quat_from_yaw(yaw: float) -> tuple[float, float, float, float]:
+    return (math.cos(yaw / 2.0), 0.0, 0.0, math.sin(yaw / 2.0))
+
+
+def smooth_interp(t: float) -> float:
+    """Cosine interpolation factor 0..1."""
+    return 0.5 - 0.5 * math.cos(math.pi * max(0.0, min(1.0, t)))
+
+
+def grid_position(drone_id: int) -> tuple[float, float]:
+    """4x4 grid, 3m spacing, centered on origin."""
+    row = drone_id // 4
+    col = drone_id % 4
+    x = (row - 1.5) * 3.0
+    y = (col - 1.5) * 3.0
+    return x, y
+
+
+def circle_position(drone_id: int, num_drones: int, radius: float = 30.0) -> tuple[float, float]:
+    angle = 2.0 * math.pi * drone_id / num_drones
+    return radius * math.cos(angle), radius * math.sin(angle)
+
+
+def local_to_global(x: float, y: float, z: float) -> tuple[float, float, float]:
+    lat = REF_LAT + (x / 111320.0)
+    lon = REF_LON + (y / (111320.0 * math.cos(math.radians(REF_LAT))))
+    alt = REF_ALT - z
+    return lat, lon, alt
+
+
+# ---------------------------------------------------------------------------
+# Phase computations
+# ---------------------------------------------------------------------------
+
+TARGET = (200.0, 0.0, 0.0)  # NED target for kamikaze
+
+
+def compute_state(drone_id: int, t: float, num_drones: int, _duration: float):
+    """Return (x, y, z, vx, vy, vz, yaw, nav_state) for a drone at time t.
+
+    Returns None if the drone hasn't started yet or has impacted.
+    """
+    start_time = drone_id * 0.5  # staggered start
+    if t < start_time:
+        return None
+
+    # Failure drone 12 -- crash at t=70, log ends
+    if drone_id == 12 and t > 70.0:
+        return None
+
+    # Default nav state
+    nav_state = NAV_OFFBOARD
+    yaw = 0.0
+    vx, vy, vz = 0.0, 0.0, 0.0
+
+    gx, gy = grid_position(drone_id)
+    cx, cy = circle_position(drone_id, num_drones)
+
+    if t < 10.0:
+        # Phase 1: staggered start, on ground rising slightly
+        frac = smooth_interp((t - start_time) / max(0.01, 10.0 - start_time))
+        x, y = gx * frac, gy * frac
+        z = 0.0
+        nav_state = NAV_TAKEOFF
+
+    elif t < 25.0:
+        # Phase 2: grid takeoff, ascend to -20 NED
+        frac = smooth_interp((t - 10.0) / 15.0)
+        x, y = gx, gy
+        z = -20.0 * frac
+        vz = -20.0 / 15.0 if frac < 1.0 else 0.0
+        nav_state = NAV_TAKEOFF
+
+    elif t < 40.0:
+        # Phase 3: grid -> ring morph
+        frac = smooth_interp((t - 25.0) / 15.0)
+        x = gx + (cx - gx) * frac
+        y = gy + (cy - gy) * frac
+        z = -20.0
+        vx = (cx - gx) / 15.0
+        vy = (cy - gy) / 15.0
+        nav_state = NAV_OFFBOARD
+
+    elif t < 55.0:
+        # Phase 4: ring cruise CW at 3 m/s
+        angular_speed = 3.0 / 30.0  # omega = v/r
+        base_angle = 2.0 * math.pi * drone_id / num_drones
+        angle = base_angle - angular_speed * (t - 40.0)  # CW -> negative
+        x = 30.0 * math.cos(angle)
+        y = 30.0 * math.sin(angle)
+        z = -20.0
+        vx = 30.0 * angular_speed * math.sin(angle)
+        vy = -30.0 * angular_speed * math.cos(angle)
+        yaw = math.atan2(-y, -x)  # face center
+        nav_state = NAV_OFFBOARD
+
+    else:
+        # Phase 5/6: Kamikaze dive toward target
+        # Starting position at t=55
+        base_angle = 2.0 * math.pi * drone_id / num_drones
+        angular_speed = 3.0 / 30.0
+        angle55 = base_angle - angular_speed * 15.0
+        start_x = 30.0 * math.cos(angle55)
+        start_y = 30.0 * math.sin(angle55)
+        start_z = -20.0
+
+        dx = TARGET[0] - start_x
+        dy = TARGET[1] - start_y
+        dz = TARGET[2] - start_z
+        dist = math.sqrt(dx * dx + dy * dy + dz * dz)
+        speed = 12.0  # m/s max
+        nx, ny, nz = dx / dist, dy / dist, dz / dist
+
+        dt = t - 55.0
+        x = start_x + nx * speed * dt
+        y = start_y + ny * speed * dt
+        z = start_z + nz * speed * dt
+        vx = nx * speed
+        vy = ny * speed
+        vz = nz * speed
+        yaw = math.atan2(ny, nx)
+        nav_state = NAV_LAND
+
+        # Impact: close to target or above ground
+        cur_dist = math.sqrt((TARGET[0] - x) ** 2 + (TARGET[1] - y) ** 2 + (TARGET[2] - z) ** 2)
+        if cur_dist < 2.0 or z > -1.0:
+            return None
+
+    # Drone 12 failure behavior (attitude wobble from t=60)
+    if drone_id == 12 and t >= 60.0:
+        wobble_t = t - 60.0
+        wobble_amp = min(wobble_t * 0.1, 0.8)  # growing oscillation
+        roll = wobble_amp * math.sin(wobble_t * 5.0)
+        pitch = wobble_amp * math.cos(wobble_t * 4.0)
+        # drift sideways
+        x += wobble_t * 2.0
+        y += wobble_t * 1.5
+        z += wobble_t * 0.5  # descending
+        # Build quaternion with roll/pitch/yaw
+        cr, sr = math.cos(roll / 2), math.sin(roll / 2)
+        cp, sp = math.cos(pitch / 2), math.sin(pitch / 2)
+        cy, sy = math.cos(yaw / 2), math.sin(yaw / 2)
+        q = (
+            cr * cp * cy + sr * sp * sy,
+            sr * cp * cy - cr * sp * sy,
+            cr * sp * cy + sr * cp * sy,
+            cr * cp * sy - sr * sp * cy,
+        )
+        return (x, y, z, vx, vy, vz, q, nav_state)
+
+    return (x, y, z, vx, vy, vz, quat_from_yaw(yaw), nav_state)
+
+
+# ---------------------------------------------------------------------------
+# Generate a single drone ULog
+# ---------------------------------------------------------------------------
+
+def generate_drone_ulog(drone_id: int, num_drones: int, duration: float,
+                        output_dir: str, scenario: str):
+    filename = os.path.join(output_dir, f"drone_{drone_id:02d}.ulg")
+    start_us = drone_id * 500_000  # stagger by 0.5s in timestamps
+
+    writer = ULogWriter(filename, timestamp_us=start_us)
+
+    # Write format definitions
+    writer.write_format(FMT_LOCAL_POS)
+    writer.write_format(FMT_ATTITUDE)
+    writer.write_format(FMT_GLOBAL_POS)
+    writer.write_format(FMT_STATUS)
+
+    # Write info messages
+    writer.write_info("sys_name", "PX4")
+    writer.write_info("ver_hw", "SITL")
+    writer.write_info("scenario", scenario)
+    writer.write_info("drone_id", str(drone_id))
+
+    # Add subscriptions
+    writer.add_subscription("vehicle_local_position")
+    writer.add_subscription("vehicle_attitude")
+    writer.add_subscription("vehicle_global_position")
+    writer.add_subscription("vehicle_status")
+
+    # Determine rates per drone (edge cases)
+    pos_dt = 0.02  # 50 Hz
+    att_dt = 0.01  # 100 Hz
+    if drone_id == 13:
+        pos_dt = 0.1  # 10 Hz low rate
+    if drone_id == 14:
+        att_dt = 0.005  # 200 Hz high rate
+
+    # Generate data
+    # We iterate at the finest resolution needed and emit when due
+    fine_dt = min(pos_dt, att_dt, 0.001)
+    # Use the finest rate needed for this drone
+    fine_dt = min(pos_dt, att_dt)
+
+    status_interval = 1.0  # 1 Hz
+    next_pos_t = 0.0
+    next_att_t = 0.0
+    next_status_t = 0.0
+    last_nav_state = -1
+
+    t = 0.0
+    samples_written = 0
+    while t <= duration:
+        state = compute_state(drone_id, t, num_drones, duration)
+
+        # Drone 15 data gap at t=50-52
+        in_gap = (drone_id == 15 and 50.0 <= t <= 52.0)
+
+        if state is not None and not in_gap:
+            x, y, z, vx, vy, vz, q, nav_state = state
+            ts = int(t * 1_000_000)
+
+            # Position data
+            if t >= next_pos_t:
+                writer.write_data("vehicle_local_position",
+                                  pack_vehicle_local_position(
+                                      ts, x, y, z, vx, vy, vz,
+                                      REF_LAT, REF_LON, REF_ALT))
+                lat, lon, alt = local_to_global(x, y, z)
+                writer.write_data("vehicle_global_position",
+                                  pack_vehicle_global_position(ts, lat, lon, alt))
+                next_pos_t = t + pos_dt
+                samples_written += 2
+
+            # Attitude data
+            if t >= next_att_t:
+                writer.write_data("vehicle_attitude",
+                                  pack_vehicle_attitude(ts, q))
+                next_att_t = t + att_dt
+                samples_written += 1
+
+            # Status data
+            if t >= next_status_t or nav_state != last_nav_state:
+                writer.write_data("vehicle_status",
+                                  pack_vehicle_status(ts, 2, nav_state))
+                next_status_t = t + status_interval
+                last_nav_state = nav_state
+                samples_written += 1
+
+        t += fine_dt
+
+    writer.close()
+    return samples_written
+
+
+# ---------------------------------------------------------------------------
+# Scenario metadata
+# ---------------------------------------------------------------------------
+
+def write_scenario_json(output_dir: str, scenario: str, num_drones: int, duration: float):
+    meta = {
+        "scenario": scenario,
+        "num_drones": num_drones,
+        "duration_s": duration,
+        "origin": {
+            "lat": REF_LAT,
+            "lon": REF_LON,
+            "alt": REF_ALT,
+        },
+        "phases": [
+            {"name": "staggered_start", "start_s": 0, "end_s": 10},
+            {"name": "grid_takeoff", "start_s": 10, "end_s": 25},
+            {"name": "grid_to_ring", "start_s": 25, "end_s": 40},
+            {"name": "ring_cruise", "start_s": 40, "end_s": 55},
+            {"name": "kamikaze_dive", "start_s": 55, "end_s": 75},
+        ],
+        "edge_cases": {
+            "drone_12": "failure at t=60, attitude oscillation, crash at t=70",
+            "drone_13": "low-rate position data (10Hz)",
+            "drone_14": "high-rate attitude data (200Hz)",
+            "drone_15": "2-second data gap at t=50-52",
+        },
+        "files": [f"drone_{i:02d}.ulg" for i in range(num_drones)],
+    }
+    path = os.path.join(output_dir, "scenario.json")
+    with open(path, 'w') as f:
+        json.dump(meta, f, indent=2)
+    print(f"  Wrote {path}")
+
+
+# ---------------------------------------------------------------------------
+# Main
+# ---------------------------------------------------------------------------
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Generate synthetic ULog files for swarm replay testing.")
+    parser.add_argument("--output-dir", default="synthetic_swarm_ulogs",
+                        help="Output directory (default: synthetic_swarm_ulogs)")
+    parser.add_argument("--num-drones", type=int, default=16,
+                        help="Number of drones (default: 16)")
+    parser.add_argument("--duration", type=float, default=90.0,
+                        help="Scenario duration in seconds (default: 90)")
+    parser.add_argument("--scenario", default="hawk_descent",
+                        help="Scenario name (default: hawk_descent)")
+    args = parser.parse_args()
+
+    os.makedirs(args.output_dir, exist_ok=True)
+    print(f"Generating {args.num_drones} drone ULog files for scenario '{args.scenario}'")
+    print(f"  Duration: {args.duration}s")
+    print(f"  Output:   {os.path.abspath(args.output_dir)}/")
+    print()
+
+    for i in range(args.num_drones):
+        samples = generate_drone_ulog(i, args.num_drones, args.duration,
+                                       args.output_dir, args.scenario)
+        tag = ""
+        if i == 12:
+            tag = " [failure drone]"
+        elif i == 13:
+            tag = " [low-rate pos]"
+        elif i == 14:
+            tag = " [high-rate att]"
+        elif i == 15:
+            tag = " [data gap]"
+        print(f"  drone_{i:02d}.ulg  ({samples} messages){tag}")
+
+    write_scenario_json(args.output_dir, args.scenario, args.num_drones, args.duration)
+    print()
+    print(f"Done. {args.num_drones} ULog files written to {os.path.abspath(args.output_dir)}/")
+
+
+if __name__ == "__main__":
+    main()

Tools/simulation/sih_swarm_run.sh

@@ -0,0 +1,141 @@
+#!/bin/bash
+# Launch N SIH quadrotor instances with XRCE-DDS agent.
+# Usage: ./sih_swarm_run.sh [CONFIG_YAML] [SPEED_FACTOR]
+#
+# Requires: build/px4_sitl_sih (make px4_sitl_sih sihsim_quadx_vision)
+
+set -euo pipefail
+
+ulimit -n 4096
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+src_path="$SCRIPT_DIR/../../"
+build_path="${src_path}/build/px4_sitl_sih"
+
+CONFIG_YAML="${1:-${SCRIPT_DIR}/swarm_formation.yaml}"
+SPEED_FACTOR="${2:-1}"
+
+if [ ! -f "$CONFIG_YAML" ]; then
+    echo "ERROR: config not found: $CONFIG_YAML"
+    exit 1
+fi
+
+if [ ! -d "$build_path" ]; then
+    echo "ERROR: build directory not found: $build_path"
+    echo "Run: make px4_sitl_sih"
+    exit 1
+fi
+
+# --- Parse YAML config via Python ---
+eval "$(python3 -c "
+import yaml, sys
+with open('${CONFIG_YAML}') as f:
+    cfg = yaml.safe_load(f)
+origin = cfg['origin']
+print(f\"ORIGIN_LAT={origin['lat']}\")
+print(f\"ORIGIN_LON={origin['lon']}\")
+print(f\"ORIGIN_ALT={origin['alt']}\")
+target = cfg['target']
+print(f\"TARGET_X={target['x']}\")
+print(f\"TARGET_Y={target['y']}\")
+print(f\"TARGET_Z={target['z']}\")
+drones = cfg['formation']
+print(f\"DRONE_COUNT={len(drones)}\")
+for i, d in enumerate(drones):
+    print(f\"DRONE_{i}_ID={d['id']}\")
+    print(f\"DRONE_{i}_X={d['x']}\")
+    print(f\"DRONE_{i}_Y={d['y']}\")
+    print(f\"DRONE_{i}_Z={d['z']}\")
+")"
+
+echo "Swarm config: $DRONE_COUNT drones, origin ($ORIGIN_LAT, $ORIGIN_LON, ${ORIGIN_ALT}m)"
+echo "Target: ($TARGET_X, $TARGET_Y, $TARGET_Z)"
+echo "Speed factor: $SPEED_FACTOR"
+echo ""
+
+# --- Cleanup ---
+CHILD_PIDS=()
+AGENT_PID=""
+
+cleanup() {
+    echo ""
+    echo "Shutting down..."
+    for pid in "${CHILD_PIDS[@]}"; do
+        kill "$pid" 2>/dev/null || true
+    done
+    if [ -n "$AGENT_PID" ]; then
+        kill "$AGENT_PID" 2>/dev/null || true
+    fi
+    pkill -x px4 2>/dev/null || true
+    wait 2>/dev/null
+    echo "All processes stopped."
+}
+
+trap cleanup SIGINT SIGTERM
+
+# --- Kill existing instances ---
+echo "Killing running instances..."
+pkill -x px4 2>/dev/null || true
+sleep 1
+
+# --- Start XRCE-DDS agent (if available) ---
+if command -v MicroXRCEAgent &>/dev/null; then
+    echo "Starting MicroXRCEAgent on UDP port 8888..."
+    MicroXRCEAgent udp4 -p 8888 > /dev/null 2>&1 &
+    AGENT_PID=$!
+    echo "XRCE-DDS agent PID: $AGENT_PID"
+else
+    echo "WARNING: MicroXRCEAgent not found on host."
+    echo "  Start it separately (e.g. from Docker container):"
+    echo "  MicroXRCEAgent udp4 -p 8888"
+fi
+echo ""
+
+# --- Port map ---
+printf "%-10s %-12s %-14s %-14s\n" "Instance" "MAV_SYS_ID" "DDS Namespace" "Offboard Port"
+printf "%-10s %-12s %-14s %-14s\n" "--------" "----------" "-------------" "-------------"
+n=0
+while [ $n -lt "$DRONE_COUNT" ]; do
+    sysid=$((n + 1))
+    printf "%-10s %-12s %-14s %-14s\n" "$n" "$sysid" "px4_${n}" "$((14540 + n))"
+    n=$((n + 1))
+done
+echo ""
+
+# --- Launch instances ---
+export PX4_SIM_MODEL=sihsim_quadx_vision
+
+n=0
+while [ $n -lt "$DRONE_COUNT" ]; do
+    eval "FX=\$DRONE_${n}_X"
+    eval "FY=\$DRONE_${n}_Y"
+    eval "FZ=\$DRONE_${n}_Z"
+
+    working_dir="$build_path/instance_$n"
+    [ ! -d "$working_dir" ] && mkdir -p "$working_dir"
+
+    export PX4_HOME_LAT="$ORIGIN_LAT"
+    export PX4_HOME_LON="$ORIGIN_LON"
+    export PX4_HOME_ALT="$ORIGIN_ALT"
+    export PX4_FORMATION_X="$FX"
+    export PX4_FORMATION_Y="$FY"
+    export PX4_FORMATION_Z="$FZ"
+    export PX4_TARGET_X="$TARGET_X"
+    export PX4_TARGET_Y="$TARGET_Y"
+    export PX4_TARGET_Z="$TARGET_Z"
+    export PX4_SIM_SPEED_FACTOR="$SPEED_FACTOR"
+    # Force consistent DDS namespace for all instances (including 0)
+    export PX4_UXRCE_DDS_NS="px4_$n"
+
+    pushd "$working_dir" &>/dev/null
+    echo "Starting instance $n (formation: $FX, $FY, $FZ)"
+    "$build_path/bin/px4" -i "$n" -d "$build_path/etc" >out.log 2>err.log &
+    CHILD_PIDS+=($!)
+    popd &>/dev/null
+
+    n=$((n + 1))
+done
+
+echo ""
+echo "All $DRONE_COUNT instances launched. Press Ctrl-C to stop."
+wait

Tools/simulation/swarm_formation.yaml

@@ -0,0 +1,32 @@
+# Formation config for SIH swarm simulation
+# Used by sih_swarm_run.sh and swarm_ros2 coordinator
+
+origin:
+  lat: 47.397742
+  lon: 8.545594
+  alt: 488.0
+
+formation:
+  # NED offsets from origin (meters). 4x4 grid, 1m spacing, at 20m altitude
+  - {id: 0,  x: 0.0, y: 0.0, z: -20.0}
+  - {id: 1,  x: 0.0, y: 1.0, z: -20.0}
+  - {id: 2,  x: 0.0, y: 2.0, z: -20.0}
+  - {id: 3,  x: 0.0, y: 3.0, z: -20.0}
+  - {id: 4,  x: 1.0, y: 0.0, z: -20.0}
+  - {id: 5,  x: 1.0, y: 1.0, z: -20.0}
+  - {id: 6,  x: 1.0, y: 2.0, z: -20.0}
+  - {id: 7,  x: 1.0, y: 3.0, z: -20.0}
+  - {id: 8,  x: 2.0, y: 0.0, z: -20.0}
+  - {id: 9,  x: 2.0, y: 1.0, z: -20.0}
+  - {id: 10, x: 2.0, y: 2.0, z: -20.0}
+  - {id: 11, x: 2.0, y: 3.0, z: -20.0}
+  - {id: 12, x: 3.0, y: 0.0, z: -20.0}
+  - {id: 13, x: 3.0, y: 1.0, z: -20.0}
+  - {id: 14, x: 3.0, y: 2.0, z: -20.0}
+  - {id: 15, x: 3.0, y: 3.0, z: -20.0}
+
+target:
+  # Car position: 200m north of origin, ground level
+  x: 200.0
+  y: 0.0
+  z: 0.0

Tools/simulation/swarm_formation_designer.py

@@ -0,0 +1,485 @@
+#!/usr/bin/env python3
+"""
+Swarm Formation Designer - Create and preview formation YAML files for PX4 SIH swarm simulation.
+
+Generates swarm_formation.yaml files with preset formation patterns (grid, circle, line,
+v, diamond, random) for use with sih_swarm_run.sh and swarm_ros2 coordinator.
+
+Usage examples:
+    # 16-drone grid with 2m spacing, preview in terminal
+    python3 swarm_formation_designer.py --pattern grid --count 16 --spacing 2.0 --preview
+
+    # 8-drone circle, radius 10m, write to file
+    python3 swarm_formation_designer.py --pattern circle --count 8 --radius 10 -o formation.yaml
+
+    # V formation with custom origin and target
+    python3 swarm_formation_designer.py --pattern v --count 7 --spacing 3.0 \\
+        --origin-lat 37.4 --origin-lon -122.0 --target-north 150 --target-east 50
+"""
+
+import argparse
+import math
+import random
+import sys
+from typing import List, Tuple
+
+# Defaults matching PX4 SIH test site (Zurich area)
+DEFAULT_LAT = 47.397742
+DEFAULT_LON = 8.545594
+DEFAULT_ALT = 488.0
+DEFAULT_ALTITUDE = 20.0
+DEFAULT_SPACING = 1.0
+DEFAULT_RADIUS = 5.0
+DEFAULT_COUNT = 16
+DEFAULT_TARGET_NORTH = 200.0
+DEFAULT_TARGET_EAST = 0.0
+MIN_SEPARATION = 0.5  # meters, minimum allowed distance between any two drones
+
+
+def generate_grid(count: int, spacing: float, altitude: float) -> List[dict]:
+    """Arrange drones in a square grid pattern (ceil(sqrt(count)) columns)."""
+    cols = math.ceil(math.sqrt(count))
+    positions = []
+    for i in range(count):
+        row = i // cols
+        col = i % cols
+        positions.append({
+            "id": i,
+            "x": round(row * spacing, 2),
+            "y": round(col * spacing, 2),
+            "z": round(-altitude, 2),
+        })
+    return positions
+
+
+def generate_circle(count: int, radius: float, altitude: float) -> List[dict]:
+    """Arrange drones evenly spaced around a circle."""
+    positions = []
+    for i in range(count):
+        angle = 2.0 * math.pi * i / count
+        positions.append({
+            "id": i,
+            "x": round(radius * math.cos(angle), 2),
+            "y": round(radius * math.sin(angle), 2),
+            "z": round(-altitude, 2),
+        })
+    return positions
+
+
+def generate_line(count: int, spacing: float, altitude: float) -> List[dict]:
+    """Arrange drones in a line along the east (y) axis, centered at origin."""
+    positions = []
+    offset = (count - 1) * spacing / 2.0
+    for i in range(count):
+        positions.append({
+            "id": i,
+            "x": 0.0,
+            "y": round(i * spacing - offset, 2),
+            "z": round(-altitude, 2),
+        })
+    return positions
+
+
+def generate_v(count: int, spacing: float, altitude: float) -> List[dict]:
+    """Classic V formation with leader at front (northernmost position).
+
+    Leader is id 0 at the tip. Remaining drones alternate left/right,
+    each row stepping back (south) and outward (east/west).
+    """
+    positions = [{"id": 0, "x": 0.0, "y": 0.0, "z": round(-altitude, 2)}]
+    wing_index = 1
+    for i in range(1, count):
+        side = 1 if (i % 2 == 1) else -1
+        row = (i + 1) // 2
+        positions.append({
+            "id": wing_index,
+            "x": round(-row * spacing, 2),       # step back (south)
+            "y": round(side * row * spacing, 2),  # spread east/west
+            "z": round(-altitude, 2),
+        })
+        wing_index += 1
+    return positions
+
+
+def generate_diamond(count: int, spacing: float, altitude: float) -> List[dict]:
+    """Diamond/rhombus formation.
+
+    Builds concentric diamond rings outward from the center. Ring k has 4*k
+    positions (except the center which has 1). Drones fill from center outward.
+    """
+    # Generate diamond coordinates ring by ring
+    coords: List[Tuple[float, float]] = [(0.0, 0.0)]
+    ring = 1
+    while len(coords) < count:
+        # Each ring has 4 sides, each side has 'ring' segments
+        for side in range(4):
+            for step in range(ring):
+                if side == 0:   # top-right edge
+                    x = (ring - step) * spacing
+                    y = step * spacing
+                elif side == 1: # bottom-right edge
+                    x = -step * spacing
+                    y = (ring - step) * spacing
+                elif side == 2: # bottom-left edge
+                    x = -(ring - step) * spacing
+                    y = -step * spacing
+                else:           # top-left edge
+                    x = step * spacing
+                    y = -(ring - step) * spacing
+                coords.append((round(x, 2), round(y, 2)))
+                if len(coords) >= count:
+                    break
+            if len(coords) >= count:
+                break
+        ring += 1
+
+    positions = []
+    for i in range(count):
+        positions.append({
+            "id": i,
+            "x": coords[i][0],
+            "y": coords[i][1],
+            "z": round(-altitude, 2),
+        })
+    return positions
+
+
+def generate_random(count: int, spacing: float, altitude: float) -> List[dict]:
+    """Random positions within a bounding box, enforcing minimum separation.
+
+    The bounding box size scales with count and spacing. Uses rejection
+    sampling to guarantee minimum separation between all drones.
+    """
+    box_size = max(spacing * math.sqrt(count) * 2, spacing * 4)
+    positions = []
+    coords: List[Tuple[float, float]] = []
+    max_attempts = count * 1000
+
+    rng = random.Random(42)  # deterministic for reproducibility
+    attempts = 0
+    while len(coords) < count and attempts < max_attempts:
+        x = round(rng.uniform(-box_size / 2, box_size / 2), 2)
+        y = round(rng.uniform(-box_size / 2, box_size / 2), 2)
+        too_close = False
+        for cx, cy in coords:
+            if math.sqrt((x - cx) ** 2 + (y - cy) ** 2) < MIN_SEPARATION:
+                too_close = True
+                break
+        if not too_close:
+            coords.append((x, y))
+        attempts += 1
+
+    if len(coords) < count:
+        print(
+            f"Warning: could only place {len(coords)}/{count} drones "
+            f"with minimum separation {MIN_SEPARATION}m in bounding box {box_size:.1f}m",
+            file=sys.stderr,
+        )
+
+    for i, (x, y) in enumerate(coords):
+        positions.append({
+            "id": i,
+            "x": x,
+            "y": y,
+            "z": round(-altitude, 2),
+        })
+    return positions
+
+
+PATTERN_GENERATORS = {
+    "grid": generate_grid,
+    "circle": generate_circle,
+    "line": generate_line,
+    "v": generate_v,
+    "diamond": generate_diamond,
+    "random": generate_random,
+}
+
+
+def validate_no_overlap(positions: List[dict]) -> bool:
+    """Check that no two drones occupy the same horizontal position (within MIN_SEPARATION)."""
+    for i in range(len(positions)):
+        for j in range(i + 1, len(positions)):
+            dx = positions[i]["x"] - positions[j]["x"]
+            dy = positions[i]["y"] - positions[j]["y"]
+            dist = math.sqrt(dx * dx + dy * dy)
+            if dist < MIN_SEPARATION:
+                print(
+                    f"Error: drones {positions[i]['id']} and {positions[j]['id']} "
+                    f"are only {dist:.2f}m apart (minimum: {MIN_SEPARATION}m)",
+                    file=sys.stderr,
+                )
+                return False
+    return True
+
+
+def build_formation_dict(
+    positions: List[dict],
+    origin_lat: float,
+    origin_lon: float,
+    origin_alt: float,
+    target_north: float,
+    target_east: float,
+) -> dict:
+    """Build the formation dictionary matching swarm_formation.yaml structure."""
+    return {
+        "origin": {
+            "lat": origin_lat,
+            "lon": origin_lon,
+            "alt": origin_alt,
+        },
+        "formation": positions,
+        "target": {
+            "x": target_north,
+            "y": target_east,
+            "z": 0.0,
+        },
+    }
+
+
+def format_yaml(data: dict) -> str:
+    """Format the formation data as YAML with flow-style formation entries.
+
+    Produces output matching the established swarm_formation.yaml style with
+    inline dicts for formation entries and block style for origin/target.
+    """
+    lines = [
+        "# Formation config for SIH swarm simulation",
+        "# Generated by swarm_formation_designer.py",
+        "",
+        "origin:",
+        f"  lat: {data['origin']['lat']}",
+        f"  lon: {data['origin']['lon']}",
+        f"  alt: {data['origin']['alt']}",
+        "",
+        "formation:",
+    ]
+
+    # Determine padding width for aligned id field
+    max_id = max(p["id"] for p in data["formation"])
+    id_width = len(str(max_id))
+
+    for pos in data["formation"]:
+        id_str = str(pos["id"]).rjust(id_width)
+        lines.append(
+            f"  - {{id: {id_str}, "
+            f"x: {pos['x']}, "
+            f"y: {pos['y']}, "
+            f"z: {pos['z']}}}"
+        )
+
+    lines.extend([
+        "",
+        "target:",
+        f"  x: {data['target']['x']}",
+        f"  y: {data['target']['y']}",
+        f"  z: {data['target']['z']}",
+        "",
+    ])
+    return "\n".join(lines)
+
+
+def ascii_preview(positions: List[dict], target_north: float, target_east: float) -> str:
+    """Render an ASCII top-down map showing drone positions and target.
+
+    North is up, East is right. Axes are labeled. The target is shown as 'T'
+    and drones as their id number (or '*' if id >= 10).
+    """
+    width = 60
+    height = 30
+
+    # Collect all points (drones + target)
+    all_x = [p["x"] for p in positions] + [target_north]
+    all_y = [p["y"] for p in positions] + [target_east]
+
+    min_x, max_x = min(all_x), max(all_x)
+    min_y, max_y = min(all_y), max(all_y)
+
+    # Add margin
+    range_x = max_x - min_x if max_x != min_x else 1.0
+    range_y = max_y - min_y if max_y != min_y else 1.0
+    margin = 0.1
+    min_x -= range_x * margin
+    max_x += range_x * margin
+    min_y -= range_y * margin
+    max_y += range_y * margin
+    range_x = max_x - min_x
+    range_y = max_y - min_y
+
+    def to_grid(north: float, east: float) -> Tuple[int, int]:
+        col = int((east - min_y) / range_y * (width - 1))
+        row = int((max_x - north) / range_x * (height - 1))  # north is up
+        col = max(0, min(width - 1, col))
+        row = max(0, min(height - 1, row))
+        return row, col
+
+    # Initialize grid
+    grid = [[" " for _ in range(width)] for _ in range(height)]
+
+    # Place target
+    tr, tc = to_grid(target_north, target_east)
+    grid[tr][tc] = "T"
+
+    # Place drones (overwrite target if on same cell)
+    for pos in positions:
+        r, c = to_grid(pos["x"], pos["y"])
+        label = str(pos["id"]) if pos["id"] < 10 else "*"
+        grid[r][c] = label
+
+    # Build output
+    out = []
+    out.append(f"  Formation Preview ({len(positions)} drones)")
+    out.append(f"  North ^  (x range: {min_x:.1f} to {max_x:.1f} m)")
+    out.append("  " + "-" * (width + 2))
+    for row in grid:
+        out.append("  |" + "".join(row) + "|")
+    out.append("  " + "-" * (width + 2))
+    out.append(f"  East ->  (y range: {min_y:.1f} to {max_y:.1f} m)")
+    out.append("")
+    out.append("  Legend: 0-9 = drone id, * = drone id >= 10, T = target")
+    return "\n".join(out)
+
+
+def parse_args(argv: "List[str] | None" = None) -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Create and preview swarm formation YAML files for PX4 SIH simulation.",
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog=(
+            "Examples:\n"
+            "  %(prog)s --pattern grid --count 16 --spacing 2 --preview\n"
+            "  %(prog)s --pattern circle --count 8 --radius 10 -o my_formation.yaml\n"
+            "  %(prog)s --pattern v --count 7 --spacing 3 --preview -o v_formation.yaml\n"
+        ),
+    )
+    parser.add_argument(
+        "--pattern",
+        choices=list(PATTERN_GENERATORS.keys()),
+        default="grid",
+        help="Formation pattern (default: grid)",
+    )
+    parser.add_argument(
+        "--count",
+        type=int,
+        default=DEFAULT_COUNT,
+        help=f"Number of drones (default: {DEFAULT_COUNT})",
+    )
+    parser.add_argument(
+        "--spacing",
+        type=float,
+        default=DEFAULT_SPACING,
+        help=f"Spacing between drones in meters (default: {DEFAULT_SPACING})",
+    )
+    parser.add_argument(
+        "--altitude",
+        type=float,
+        default=DEFAULT_ALTITUDE,
+        help=f"Flight altitude in meters AGL (default: {DEFAULT_ALTITUDE})",
+    )
+    parser.add_argument(
+        "--radius",
+        type=float,
+        default=DEFAULT_RADIUS,
+        help=f"Radius for circle pattern in meters (default: {DEFAULT_RADIUS})",
+    )
+    parser.add_argument(
+        "--origin-lat",
+        type=float,
+        default=DEFAULT_LAT,
+        help=f"Origin latitude (default: {DEFAULT_LAT})",
+    )
+    parser.add_argument(
+        "--origin-lon",
+        type=float,
+        default=DEFAULT_LON,
+        help=f"Origin longitude (default: {DEFAULT_LON})",
+    )
+    parser.add_argument(
+        "--origin-alt",
+        type=float,
+        default=DEFAULT_ALT,
+        help=f"Origin altitude AMSL in meters (default: {DEFAULT_ALT})",
+    )
+    parser.add_argument(
+        "--target-north",
+        type=float,
+        default=DEFAULT_TARGET_NORTH,
+        help=f"Target position north of origin in meters (default: {DEFAULT_TARGET_NORTH})",
+    )
+    parser.add_argument(
+        "--target-east",
+        type=float,
+        default=DEFAULT_TARGET_EAST,
+        help=f"Target position east of origin in meters (default: {DEFAULT_TARGET_EAST})",
+    )
+    parser.add_argument(
+        "--preview",
+        action="store_true",
+        help="Show ASCII preview of the formation",
+    )
+    parser.add_argument(
+        "-o", "--output",
+        type=str,
+        default=None,
+        help="Output YAML file path (default: print to stdout)",
+    )
+
+    args = parser.parse_args(argv)
+
+    if args.count < 1:
+        parser.error("--count must be at least 1")
+    if args.spacing <= 0:
+        parser.error("--spacing must be positive")
+    if args.altitude <= 0:
+        parser.error("--altitude must be positive")
+    if args.radius <= 0:
+        parser.error("--radius must be positive")
+
+    return args
+
+
+def main(argv: "List[str] | None" = None) -> int:
+    args = parse_args(argv)
+
+    # Select generator and dispatch with appropriate arguments
+    generator = PATTERN_GENERATORS[args.pattern]
+    if args.pattern == "circle":
+        positions = generator(args.count, args.radius, args.altitude)
+    else:
+        positions = generator(args.count, args.spacing, args.altitude)
+
+    # Validate
+    if not validate_no_overlap(positions):
+        return 1
+
+    # Build output
+    data = build_formation_dict(
+        positions,
+        args.origin_lat,
+        args.origin_lon,
+        args.origin_alt,
+        args.target_north,
+        args.target_east,
+    )
+    yaml_text = format_yaml(data)
+
+    # Preview
+    if args.preview:
+        print(ascii_preview(positions, args.target_north, args.target_east))
+        print()
+
+    # Output
+    if args.output:
+        with open(args.output, "w") as f:
+            f.write(yaml_text)
+        print(f"Wrote {len(positions)} drone formation to {args.output}")
+    else:
+        if not args.preview:
+            print(yaml_text, end="")
+        else:
+            print(yaml_text, end="")
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

Tools/simulation/swarm_ros2/.gitignore

@@ -0,0 +1,2 @@
+# Staging directory created by build_docker.sh (ephemeral)
+_px4_msgs_defs/

Tools/simulation/swarm_ros2/Dockerfile

@@ -0,0 +1,95 @@
+# ROS 2 Jazzy layer on top of PX4 dev environment
+# For swarm simulation with px4-ros2-interface-lib
+#
+# Build (from PX4-Autopilot root):
+#   Tools/simulation/swarm_ros2/build_docker.sh
+#
+# Run:
+#   docker run -it --rm -v /path/to/PX4-Autopilot:/px4 px4-swarm-ros2
+#
+FROM px4io/px4-dev:v1.17.0-rc1
+LABEL maintainer="Ramon Roche <mrpollo@gmail.com>"
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV ROS_DISTRO=jazzy
+
+# Add ROS 2 Jazzy repository (Ubuntu 24.04 = noble)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        curl \
+        gnupg \
+        lsb-release \
+        software-properties-common \
+    && curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key \
+        -o /usr/share/keyrings/ros-archive-keyring.gpg \
+    && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] \
+        http://packages.ros.org/ros2/ubuntu noble main" \
+        > /etc/apt/sources.list.d/ros2.list \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends \
+        ros-jazzy-ros-base \
+        ros-jazzy-rmw-cyclonedds-cpp \
+        python3-colcon-common-extensions \
+        python3-rosdep \
+        python3-numpy \
+    && rm -rf /var/lib/apt/lists/*
+
+# Initialize rosdep
+RUN rosdep init 2>/dev/null || true \
+    && su user -c "rosdep update --rosdistro jazzy" 2>/dev/null || true
+
+# Set ROS 2 middleware to CycloneDDS (better multi-vehicle support)
+ENV RMW_IMPLEMENTATION=rmw_cyclonedds_cpp
+
+# Build Micro XRCE-DDS Agent from source
+RUN git clone --depth 1 https://github.com/eProsima/Micro-XRCE-DDS-Agent.git /tmp/xrce-agent \
+    && cd /tmp/xrce-agent \
+    && mkdir build && cd build \
+    && cmake .. -DCMAKE_BUILD_TYPE=Release \
+    && make -j$(nproc) \
+    && make install \
+    && ldconfig \
+    && rm -rf /tmp/xrce-agent
+
+# Build px4_msgs from PX4 source tree msg definitions (ensures type hash match).
+# The build_docker.sh script copies msg/ and srv/ into _px4_msgs_defs/ before build.
+ENV ROS2_WS=/opt/ros2_ws
+COPY _px4_msgs_defs/ /tmp/px4_msg_defs/
+RUN mkdir -p ${ROS2_WS}/src \
+    && cd ${ROS2_WS}/src \
+    && git clone --depth 1 https://github.com/PX4/px4_msgs.git \
+    && rm -rf px4_msgs/msg/*.msg px4_msgs/srv/*.srv \
+    && cp /tmp/px4_msg_defs/msg/*.msg px4_msgs/msg/ \
+    && cp /tmp/px4_msg_defs/srv/*.srv px4_msgs/srv/ \
+    && rm -rf /tmp/px4_msg_defs \
+    && cd ${ROS2_WS} \
+    && . /opt/ros/jazzy/setup.sh \
+    && colcon build --packages-select px4_msgs --cmake-args -DCMAKE_BUILD_TYPE=Release \
+    && rm -rf log
+
+# Build px4-ros2-interface-lib (depends on px4_msgs built above)
+RUN cd ${ROS2_WS}/src \
+    && git clone --depth 1 --recursive https://github.com/Auterion/px4-ros2-interface-lib.git \
+    && cd ${ROS2_WS} \
+    && . /opt/ros/jazzy/setup.sh \
+    && . install/setup.sh \
+    && colcon build --packages-skip px4_msgs --cmake-args -DCMAKE_BUILD_TYPE=Release \
+    && rm -rf log src
+
+# Copy swarm_ros2 package and build it
+COPY . ${ROS2_WS}/src/swarm_ros2/
+RUN cd ${ROS2_WS} \
+    && . /opt/ros/jazzy/setup.sh \
+    && . install/setup.sh \
+    && colcon build --packages-select swarm_ros2 \
+    && rm -rf log
+
+# Source everything on shell entry
+RUN echo "source /opt/ros/jazzy/setup.bash" >> /etc/bash.bashrc \
+    && echo "source ${ROS2_WS}/install/setup.bash" >> /etc/bash.bashrc
+
+# XRCE-DDS UDP port
+EXPOSE 8888/udp
+
+WORKDIR ${ROS2_WS}
+
+CMD ["/bin/bash"]

Tools/simulation/swarm_ros2/build_docker.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# Build the px4-swarm-ros2 Docker image with px4_msgs matching this PX4 commit.
+# Run from anywhere; the script locates PX4 root automatically.
+#
+# Usage: ./build_docker.sh
+
+set -eo pipefail
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+PX4_ROOT="$( cd "${SCRIPT_DIR}/../../.." && pwd )"
+
+echo "PX4 root: ${PX4_ROOT}"
+echo "Staging px4_msgs definitions from this PX4 commit..."
+
+# Stage msg/srv files into the Docker build context
+STAGING_DIR="${SCRIPT_DIR}/_px4_msgs_defs"
+rm -rf "${STAGING_DIR}"
+mkdir -p "${STAGING_DIR}/msg" "${STAGING_DIR}/srv"
+
+cp "${PX4_ROOT}"/msg/*.msg "${STAGING_DIR}/msg/"
+cp "${PX4_ROOT}"/msg/versioned/*.msg "${STAGING_DIR}/msg/"
+cp "${PX4_ROOT}"/srv/*.srv "${STAGING_DIR}/srv/"
+
+echo "Staged $(ls "${STAGING_DIR}/msg/" | wc -l | tr -d ' ') .msg files and $(ls "${STAGING_DIR}/srv/" | wc -l | tr -d ' ') .srv files"
+echo ""
+echo "Building Docker image..."
+
+docker build -t px4-swarm-ros2 "${SCRIPT_DIR}"
+
+# Clean up staged files
+rm -rf "${STAGING_DIR}"
+
+echo ""
+echo "Done. Run with:"
+echo "  docker run -it --rm -v ${PX4_ROOT}:/px4 px4-swarm-ros2 bash /px4/Tools/simulation/swarm_ros2/run_swarm.sh 4"

Tools/simulation/swarm_ros2/launch/swarm_launch.py

@@ -0,0 +1,80 @@
+"""
+Launch file for the PX4 swarm coordination stack.
+
+Starts one vision_provider node per drone and a single swarm_controller node.
+
+Usage:
+    ros2 launch swarm_ros2 swarm_launch.py num_drones:=16 speed_factor:=1.0
+"""
+
+from launch import LaunchDescription
+from launch.actions import DeclareLaunchArgument
+from launch.substitutions import LaunchConfiguration
+from launch_ros.actions import Node
+
+
+def generate_launch_description():
+    # Declare launch arguments.
+    num_drones_arg = DeclareLaunchArgument(
+        'num_drones',
+        default_value='16',
+        description='Number of drones in the swarm',
+    )
+    speed_factor_arg = DeclareLaunchArgument(
+        'speed_factor',
+        default_value='1.0',
+        description='Simulation speed factor',
+    )
+    formation_config_arg = DeclareLaunchArgument(
+        'formation_config',
+        default_value='',
+        description='Path to YAML formation configuration file',
+    )
+
+    num_drones = LaunchConfiguration('num_drones')
+    speed_factor = LaunchConfiguration('speed_factor')
+
+    # We need a concrete integer to iterate, so we support a fixed max and
+    # conditionally launch.  ROS 2 launch does not natively support dynamic
+    # loops over LaunchConfiguration integers, so we generate nodes for a
+    # reasonable upper bound and rely on the controller's num_drones param
+    # to limit actual usage.  For simplicity, generate exactly 16 nodes
+    # (the default).  For other counts, users can call this launch file
+    # programmatically or adjust the constant below.
+    MAX_DRONES = 16
+
+    vision_nodes = []
+    for i in range(MAX_DRONES):
+        ns = f'px4_{i}'
+        vision_nodes.append(
+            Node(
+                package='swarm_ros2',
+                executable='vision_provider',
+                name=f'vision_provider_{i}',
+                parameters=[{
+                    'namespace': ns,
+                    'instance_id': i,
+                }],
+                output='screen',
+            )
+        )
+
+    # Single swarm controller.
+    controller_node = Node(
+        package='swarm_ros2',
+        executable='swarm_controller',
+        name='swarm_controller',
+        parameters=[{
+            'num_drones': num_drones,
+            'speed_factor': speed_factor,
+        }],
+        output='screen',
+    )
+
+    return LaunchDescription([
+        num_drones_arg,
+        speed_factor_arg,
+        formation_config_arg,
+        *vision_nodes,
+        controller_node,
+    ])

Tools/simulation/swarm_ros2/package.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
+<package format="3">
+  <name>swarm_ros2</name>
+  <version>0.1.0</version>
+  <description>Swarm coordination for PX4 multi-vehicle simulation using px4-ros2-interface-lib concepts</description>
+  <maintainer email="mrpollo@gmail.com">Ramon Roche</maintainer>
+  <license>BSD-3-Clause</license>
+
+  <depend>rclpy</depend>
+  <depend>px4_msgs</depend>
+  <depend>px4_ros2_cpp</depend>
+  <depend>std_msgs</depend>
+  <depend>geometry_msgs</depend>
+
+  <test_depend>ament_copyright</test_depend>
+  <test_depend>ament_flake8</test_depend>
+  <test_depend>ament_pep257</test_depend>
+  <test_depend>python3-pytest</test_depend>
+
+  <export>
+    <build_type>ament_python</build_type>
+  </export>
+</package>

Tools/simulation/swarm_ros2/run_swarm.sh

@@ -0,0 +1,99 @@
+#!/bin/bash
+# Run the full swarm test inside Docker: PX4 SIH + XRCE-DDS + ROS 2
+# Usage: ./run_swarm.sh [NUM_DRONES] [SPEED_FACTOR]
+#
+# Must be run inside the px4-swarm-ros2 container with PX4 source mounted at /px4:
+#   docker run -it --rm -v /path/to/PX4-Autopilot:/px4 px4-swarm-ros2 /opt/ros2_ws/src/swarm_ros2/run_swarm.sh 4
+
+set -eo pipefail
+
+NUM_DRONES="${1:-4}"
+SPEED_FACTOR="${2:-1}"
+PX4_SRC="${PX4_SRC:-/px4}"
+BUILD_DIR="${PX4_SRC}/build/px4_sitl_sih"
+
+echo "=== PX4 SIH Swarm Test ==="
+echo "  Drones: $NUM_DRONES"
+echo "  Speed factor: $SPEED_FACTOR"
+echo ""
+
+# Check PX4 build exists
+if [ ! -f "$BUILD_DIR/bin/px4" ]; then
+    echo "PX4 binary not found at $BUILD_DIR/bin/px4"
+    echo "Building PX4 (this may take a few minutes)..."
+    cd "$PX4_SRC"
+    make px4_sitl_sih
+fi
+
+# Source ROS 2
+source /opt/ros/jazzy/setup.bash
+source /opt/ros2_ws/install/setup.bash
+
+# Cleanup handler
+PIDS=()
+cleanup() {
+    echo ""
+    echo "Shutting down..."
+    for pid in "${PIDS[@]}"; do
+        kill "$pid" 2>/dev/null || true
+    done
+    pkill -x px4 2>/dev/null || true
+    pkill -x MicroXRCEAgent 2>/dev/null || true
+    wait 2>/dev/null
+    echo "Done."
+}
+trap cleanup EXIT SIGINT SIGTERM
+
+# Kill any existing px4
+pkill -x px4 2>/dev/null || true
+sleep 1
+
+# Start XRCE-DDS agent
+echo "Starting XRCE-DDS agent on port 8888..."
+MicroXRCEAgent udp4 -p 8888 > /dev/null 2>&1 &
+PIDS+=($!)
+sleep 1
+
+# Launch PX4 instances
+export PX4_SIM_MODEL=sihsim_quadx_vision
+export PX4_SIM_SPEED_FACTOR="$SPEED_FACTOR"
+
+# Clean stale instance data (old parameters.bson can override param set-default)
+echo "Cleaning stale instance data..."
+for n in $(seq 0 $((NUM_DRONES - 1))); do
+    rm -rf "$BUILD_DIR/instance_$n"
+done
+
+echo "Launching $NUM_DRONES PX4 SIH instances..."
+for n in $(seq 0 $((NUM_DRONES - 1))); do
+    working_dir="$BUILD_DIR/instance_$n"
+    mkdir -p "$working_dir"
+
+    pushd "$working_dir" &>/dev/null
+    # Force consistent DDS namespace for all instances (including 0)
+    # so ROS 2 nodes can use px4_0, px4_1, ... uniformly
+    PX4_UXRCE_DDS_NS="px4_$n" "$BUILD_DIR/bin/px4" -i "$n" -d "$BUILD_DIR/etc" >out.log 2>err.log &
+    PIDS+=($!)
+    popd &>/dev/null
+    echo "  Instance $n started (PID ${PIDS[-1]})"
+done
+
+# Wait for PX4 instances to initialize
+echo ""
+echo "Waiting 5s for PX4 instances to initialize..."
+sleep 5
+
+# Launch ROS 2 swarm (blocks until mission completes)
+echo ""
+echo "Launching ROS 2 swarm controller..."
+echo "=========================================="
+ros2 launch swarm_ros2 swarm_launch.py num_drones:="$NUM_DRONES"
+
+echo ""
+echo "=== Mission complete ==="
+
+# Collect ULogs
+echo "Collecting ULog files..."
+python3 "$PX4_SRC/Tools/simulation/collect_swarm_ulogs.py" \
+    --build-dir "$BUILD_DIR" \
+    --output-dir "$PX4_SRC/swarm_ulogs_$(date +%Y%m%d_%H%M%S)"

Tools/simulation/swarm_ros2/setup.cfg

@@ -0,0 +1,5 @@
+[develop]
+script_dir=$base/lib/swarm_ros2
+
+[install]
+install_scripts=$base/lib/swarm_ros2

Tools/simulation/swarm_ros2/setup.py

@@ -0,0 +1,29 @@
+from setuptools import setup
+import os
+from glob import glob
+
+package_name = 'swarm_ros2'
+
+setup(
+    name=package_name,
+    version='0.1.0',
+    packages=[package_name],
+    data_files=[
+        ('share/ament_index/resource_index/packages', ['resource/' + package_name]),
+        ('share/' + package_name, ['package.xml']),
+        (os.path.join('share', package_name, 'launch'), glob('launch/*.py')),
+    ],
+    install_requires=['setuptools'],
+    zip_safe=True,
+    maintainer='Ramon Roche',
+    maintainer_email='mrpollo@gmail.com',
+    description='Swarm coordination for PX4 multi-vehicle simulation',
+    license='BSD-3-Clause',
+    tests_require=['pytest'],
+    entry_points={
+        'console_scripts': [
+            'vision_provider = swarm_ros2.vision_provider:main',
+            'swarm_controller = swarm_ros2.swarm_controller:main',
+        ],
+    },
+)

Tools/simulation/swarm_ros2/swarm_ros2/swarm_controller.py

@@ -0,0 +1,599 @@
+"""
+Swarm controller node for PX4 multi-vehicle coordination.
+
+Manages all drones through a phased state machine:
+  1. Wait for EV lock
+  2. Arm + takeoff to formation
+  3. Hold grid formation
+  4. Transition to circle via cosine interpolation
+  5. Hold circle and rotate
+  6. Kamikaze dive to target
+
+Uses PX4 offboard control via px4_msgs topics.
+"""
+
+import math
+import os
+from enum import IntEnum, auto
+
+import numpy as np
+import rclpy
+from rclpy.node import Node
+from rclpy.qos import QoSProfile, ReliabilityPolicy, HistoryPolicy, DurabilityPolicy
+
+from px4_msgs.msg import (
+    OffboardControlMode,
+    TrajectorySetpoint,
+    VehicleCommand,
+    VehicleLocalPosition,
+    VehicleStatus,
+)
+
+
+PX4_QOS = QoSProfile(
+    reliability=ReliabilityPolicy.BEST_EFFORT,
+    durability=DurabilityPolicy.TRANSIENT_LOCAL,
+    history=HistoryPolicy.KEEP_LAST,
+    depth=1,
+)
+
+# Volatile QoS for subscriptions to avoid stale data from before
+# namespace discovery is complete.
+PX4_SUB_QOS = QoSProfile(
+    reliability=ReliabilityPolicy.BEST_EFFORT,
+    durability=DurabilityPolicy.VOLATILE,
+    history=HistoryPolicy.KEEP_LAST,
+    depth=1,
+)
+
+
+class Phase(IntEnum):
+    """State machine phases."""
+    WAIT_EV_LOCK = auto()
+    ARM_TAKEOFF = auto()
+    HOLD_GRID = auto()
+    TRANSITION_CIRCLE = auto()
+    HOLD_CIRCLE = auto()
+    KAMIKAZE = auto()
+    DONE = auto()
+
+
+class DroneState:
+    """Per-drone bookkeeping."""
+
+    def __init__(self, drone_id: int, namespace: str):
+        self.drone_id = drone_id
+        self.namespace = namespace
+
+        # Telemetry
+        self.xy_valid = False
+        self.z_valid = False
+        self.position = np.zeros(3)  # NED [x, y, z]
+        self.has_initial_pos = False
+        self._init_samples: list = []  # Buffer for initial position consensus
+        self.armed = False
+        self.nav_state = 0
+
+        # Formation target (grid)
+        self.grid_pos = np.zeros(3)
+
+        # Circle target
+        self.circle_angle = 0.0
+
+        # Mission status
+        self.impacted = False
+
+
+class SwarmController(Node):
+    """Coordinates N drones through the swarm mission phases."""
+
+    # Phase durations in seconds
+    EV_LOCK_TIMEOUT = 15.0
+    TAKEOFF_DURATION = 20.0
+    HOLD_GRID_DURATION = 10.0
+    TRANSITION_DURATION = 15.0
+    HOLD_CIRCLE_DURATION = 10.0
+    KAMIKAZE_TIMEOUT = 120.0
+
+    # Circle parameters
+    CIRCLE_RADIUS = 4.0       # metres
+    CIRCLE_SPEED = 3.0        # m/s tangential
+
+    # Kamikaze parameters
+    KAMIKAZE_SPEED = 12.0     # m/s (MPC_XY_VEL_MAX)
+    IMPACT_DIST = 2.0         # metres
+    IMPACT_Z_THRESH = -1.0    # NED (z > -1 means within 1m of ground)
+
+    # PX4 command constants
+    VEHICLE_CMD_COMPONENT_ARM_DISARM = 400
+    VEHICLE_CMD_DO_SET_MODE = 176
+
+    CONTROL_HZ = 20.0
+
+    def __init__(self):
+        super().__init__('swarm_controller')
+
+        # Parameters
+        self.declare_parameter('num_drones', 16)
+        self.declare_parameter('speed_factor', 1.0)
+        self.declare_parameter('target_x', 200.0)
+        self.declare_parameter('target_y', 0.0)
+        self.declare_parameter('target_z', 0.0)
+        self.declare_parameter('takeoff_altitude', -5.0)  # NED, negative = up
+
+        self._num_drones = self.get_parameter('num_drones').value
+        self._speed_factor = self.get_parameter('speed_factor').value
+
+        # Kamikaze target (NED)
+        self._target = np.array([
+            float(os.environ.get('PX4_KAMIKAZE_X',
+                                 self.get_parameter('target_x').value)),
+            float(os.environ.get('PX4_KAMIKAZE_Y',
+                                 self.get_parameter('target_y').value)),
+            float(os.environ.get('PX4_KAMIKAZE_Z',
+                                 self.get_parameter('target_z').value)),
+        ])
+
+        takeoff_alt = self.get_parameter('takeoff_altitude').value
+
+        self.get_logger().info(
+            f'Swarm controller: {self._num_drones} drones, '
+            f'speed_factor={self._speed_factor}, '
+            f'target={self._target.tolist()}'
+        )
+
+        # Build grid formation (4x4 or NxM, 2m spacing, centered at origin).
+        cols = int(math.ceil(math.sqrt(self._num_drones)))
+        rows = int(math.ceil(self._num_drones / cols))
+        grid_center_x = (cols - 1) / 2.0
+        grid_center_y = (rows - 1) / 2.0
+
+        # ------------------------------------------------------------------ #
+        # Per-drone state and ROS interfaces
+        # ------------------------------------------------------------------ #
+        self._drones: list[DroneState] = []
+        self._pub_offboard: list[rclpy.publisher.Publisher] = []
+        self._pub_traj: list[rclpy.publisher.Publisher] = []
+        self._pub_cmd: list[rclpy.publisher.Publisher] = []
+
+        for i in range(self._num_drones):
+            ns = f'px4_{i}'
+            drone = DroneState(i, ns)
+
+            # Grid position: 2m spacing, centered, at takeoff altitude.
+            col = i % cols
+            row = i // cols
+            drone.grid_pos = np.array([
+                (col - grid_center_x) * 2.0,
+                (row - grid_center_y) * 2.0,
+                float(takeoff_alt),
+            ])
+
+            # Circle angle for this drone.
+            drone.circle_angle = 2.0 * math.pi * i / self._num_drones
+
+            self._drones.append(drone)
+
+            # Publishers
+            self._pub_offboard.append(
+                self.create_publisher(
+                    OffboardControlMode,
+                    f'/{ns}/fmu/in/offboard_control_mode',
+                    PX4_QOS,
+                )
+            )
+            self._pub_traj.append(
+                self.create_publisher(
+                    TrajectorySetpoint,
+                    f'/{ns}/fmu/in/trajectory_setpoint',
+                    PX4_QOS,
+                )
+            )
+            self._pub_cmd.append(
+                self.create_publisher(
+                    VehicleCommand,
+                    f'/{ns}/fmu/in/vehicle_command',
+                    PX4_QOS,
+                )
+            )
+
+            # Subscribers
+            # PX4 XRCE-DDS uses versioned topic names: _v<MESSAGE_VERSION>
+            # VehicleLocalPosition: MESSAGE_VERSION=1 -> _v1
+            # VehicleStatus: MESSAGE_VERSION=2 -> _v2
+            self.create_subscription(
+                VehicleLocalPosition,
+                f'/{ns}/fmu/out/vehicle_local_position_v1',
+                lambda msg, idx=i: self._local_pos_cb(idx, msg),
+                PX4_SUB_QOS,
+            )
+            self.create_subscription(
+                VehicleStatus,
+                f'/{ns}/fmu/out/vehicle_status_v2',
+                lambda msg, idx=i: self._vehicle_status_cb(idx, msg),
+                PX4_SUB_QOS,
+            )
+
+        # ------------------------------------------------------------------ #
+        # State machine
+        # ------------------------------------------------------------------ #
+        self._phase = Phase.WAIT_EV_LOCK
+        self._phase_start_time = self.get_clock().now()
+        self._mission_start_time = self.get_clock().now()
+        self._circle_center = np.array([0.0, 0.0, float(takeoff_alt)])
+        self._last_ev_print = 0
+
+        # Main control timer
+        period_s = 1.0 / self.CONTROL_HZ
+        self._timer = self.create_timer(period_s, self._control_loop)
+
+    # ===================================================================== #
+    # Subscriber callbacks
+    # ===================================================================== #
+    def _local_pos_cb(self, idx: int, msg: VehicleLocalPosition):
+        d = self._drones[idx]
+        d.xy_valid = msg.xy_valid
+        d.z_valid = msg.z_valid
+
+        new_pos = np.array([msg.x, msg.y, msg.z])
+
+        if not d.has_initial_pos:
+            if not (d.xy_valid and d.z_valid):
+                return
+            # All drones start near origin. Reject samples > 20m from origin
+            # during initialization (DDS cross-talk from other instances).
+            if np.linalg.norm(new_pos) > 20.0:
+                return
+            # Require 5 consistent samples within 5m to establish initial pos.
+            d._init_samples.append(new_pos)
+            if len(d._init_samples) >= 5:
+                ref = d._init_samples[-1]
+                consistent = all(
+                    np.linalg.norm(s - ref) < 5.0
+                    for s in d._init_samples[-5:]
+                )
+                if consistent:
+                    d.position = new_pos
+                    d.has_initial_pos = True
+                else:
+                    d._init_samples = d._init_samples[-1:]
+            return
+
+        # Guard against DDS cross-talk: reject position jumps > 50m/tick.
+        # At 50Hz and 12m/s max, real movement is < 0.3m per tick.
+        jump = np.linalg.norm(new_pos - d.position)
+        if jump > 50.0:
+            return  # Discard cross-talk sample
+
+        d.position = new_pos
+
+    def _vehicle_status_cb(self, idx: int, msg: VehicleStatus):
+        d = self._drones[idx]
+        d.armed = (msg.arming_state == VehicleStatus.ARMING_STATE_ARMED)
+        d.nav_state = msg.nav_state
+
+    # ===================================================================== #
+    # Publishing helpers
+    # ===================================================================== #
+    def _publish_offboard_mode(self, idx: int, *, position: bool = False,
+                               velocity: bool = False):
+        """Send OffboardControlMode for drone idx."""
+        msg = OffboardControlMode()
+        msg.timestamp = int(self.get_clock().now().nanoseconds / 1000)
+        msg.position = position
+        msg.velocity = velocity
+        msg.acceleration = False
+        msg.attitude = False
+        msg.body_rate = False
+        self._pub_offboard[idx].publish(msg)
+
+    def _publish_trajectory(self, idx: int, *,
+                            position: list[float] | None = None,
+                            velocity: list[float] | None = None,
+                            yaw: float = float('nan'),
+                            yawspeed: float = float('nan')):
+        """Send TrajectorySetpoint for drone idx."""
+        msg = TrajectorySetpoint()
+        msg.timestamp = int(self.get_clock().now().nanoseconds / 1000)
+
+        nan3 = [float('nan')] * 3
+        msg.position = list(position) if position is not None else nan3
+        msg.velocity = list(velocity) if velocity is not None else nan3
+        msg.yaw = yaw
+        msg.yawspeed = yawspeed
+        self._pub_traj[idx].publish(msg)
+
+    def _publish_vehicle_command(self, idx: int, command: int,
+                                 param1: float = 0.0, param2: float = 0.0,
+                                 param3: float = 0.0):
+        """Send VehicleCommand for drone idx."""
+        msg = VehicleCommand()
+        msg.timestamp = int(self.get_clock().now().nanoseconds / 1000)
+        msg.command = command
+        msg.param1 = param1
+        msg.param2 = param2
+        msg.param3 = param3
+        msg.target_system = idx + 1       # MAV_SYS_ID
+        msg.target_component = 1
+        msg.source_system = 255           # GCS
+        msg.source_component = 0
+        msg.from_external = True
+        self._pub_cmd[idx].publish(msg)
+
+    def _arm(self, idx: int):
+        self._publish_vehicle_command(
+            idx, self.VEHICLE_CMD_COMPONENT_ARM_DISARM, param1=1.0)
+
+    def _disarm_force(self, idx: int):
+        self._publish_vehicle_command(
+            idx, self.VEHICLE_CMD_COMPONENT_ARM_DISARM,
+            param1=0.0, param2=21196.0)
+
+    def _set_offboard_mode(self, idx: int):
+        self._publish_vehicle_command(
+            idx, self.VEHICLE_CMD_DO_SET_MODE,
+            param1=1.0, param2=6.0, param3=0.0)
+
+    # ===================================================================== #
+    # Phase elapsed time helper
+    # ===================================================================== #
+    def _phase_elapsed(self) -> float:
+        """Seconds since current phase started."""
+        return (self.get_clock().now() - self._phase_start_time).nanoseconds / 1e9
+
+    def _mission_elapsed(self) -> float:
+        """Seconds since mission started."""
+        return (self.get_clock().now() - self._mission_start_time).nanoseconds / 1e9
+
+    def _advance_phase(self, new_phase: Phase):
+        self.get_logger().info(f'Phase transition: {self._phase.name} -> {new_phase.name}')
+        self._phase = new_phase
+        self._phase_start_time = self.get_clock().now()
+
+    # ===================================================================== #
+    # Main control loop (20 Hz)
+    # ===================================================================== #
+    def _control_loop(self):
+        if self._phase == Phase.DONE:
+            return
+
+        if self._phase == Phase.WAIT_EV_LOCK:
+            self._phase_wait_ev_lock()
+        elif self._phase == Phase.ARM_TAKEOFF:
+            self._phase_arm_takeoff()
+        elif self._phase == Phase.HOLD_GRID:
+            self._phase_hold_grid()
+        elif self._phase == Phase.TRANSITION_CIRCLE:
+            self._phase_transition_circle()
+        elif self._phase == Phase.HOLD_CIRCLE:
+            self._phase_hold_circle()
+        elif self._phase == Phase.KAMIKAZE:
+            self._phase_kamikaze()
+
+    # ------------------------------------------------------------------ #
+    # Phase 1: Wait for EV lock
+    # ------------------------------------------------------------------ #
+    def _phase_wait_ev_lock(self):
+        locked = sum(1 for d in self._drones if d.xy_valid and d.z_valid)
+        elapsed = self._phase_elapsed()
+
+        # Print status every second.
+        elapsed_int = int(elapsed)
+        if elapsed_int > self._last_ev_print:
+            self._last_ev_print = elapsed_int
+            self.get_logger().info(
+                f'{locked}/{self._num_drones} drones have EV lock '
+                f'({elapsed:.0f}s elapsed)')
+
+        if locked == self._num_drones or elapsed > self.EV_LOCK_TIMEOUT:
+            if locked < self._num_drones:
+                self.get_logger().warn(
+                    f'EV lock timeout: only {locked}/{self._num_drones} locked')
+            self._advance_phase(Phase.ARM_TAKEOFF)
+
+    # ------------------------------------------------------------------ #
+    # Phase 2: Arm + takeoff
+    # ------------------------------------------------------------------ #
+    def _phase_arm_takeoff(self):
+        elapsed = self._phase_elapsed()
+
+        for i in range(self._num_drones):
+            d = self._drones[i]
+
+            # Keep sending offboard + setpoint before and after arming.
+            self._publish_offboard_mode(i, position=True)
+            self._publish_trajectory(
+                i,
+                position=d.grid_pos.tolist(),
+                yaw=0.0,
+            )
+
+            # Arm and set offboard mode repeatedly for the first few seconds.
+            if elapsed < 5.0:
+                self._set_offboard_mode(i)
+                self._arm(i)
+
+        # Log status every 5 seconds.
+        elapsed_int = int(elapsed)
+        if elapsed_int > 0 and elapsed_int % 5 == 0 and elapsed - elapsed_int < 0.1:
+            armed = sum(1 for d in self._drones if d.armed)
+            self.get_logger().info(
+                f'ARM_TAKEOFF {elapsed:.0f}s: {armed}/{self._num_drones} armed, '
+                f'positions: ' + ', '.join(
+                    f'D{i}=[{d.position[2]:.1f}m]'
+                    for i, d in enumerate(self._drones)
+                )
+            )
+
+        if elapsed > self.TAKEOFF_DURATION:
+            self._advance_phase(Phase.HOLD_GRID)
+
+    # ------------------------------------------------------------------ #
+    # Phase 3: Hold grid
+    # ------------------------------------------------------------------ #
+    def _phase_hold_grid(self):
+        for i in range(self._num_drones):
+            d = self._drones[i]
+            self._publish_offboard_mode(i, position=True)
+            self._publish_trajectory(
+                i,
+                position=d.grid_pos.tolist(),
+                yaw=0.0,
+            )
+
+        if self._phase_elapsed() > self.HOLD_GRID_DURATION:
+            # Compute circle center as the mean of grid positions.
+            mean_pos = np.mean([d.grid_pos for d in self._drones], axis=0)
+            self._circle_center = mean_pos.copy()
+            self._advance_phase(Phase.TRANSITION_CIRCLE)
+
+    # ------------------------------------------------------------------ #
+    # Phase 4: Transition to circle (cosine interpolation)
+    # ------------------------------------------------------------------ #
+    def _phase_transition_circle(self):
+        elapsed = self._phase_elapsed()
+        alpha = 0.5 - 0.5 * math.cos(math.pi * min(elapsed / self.TRANSITION_DURATION, 1.0))
+
+        for i in range(self._num_drones):
+            d = self._drones[i]
+
+            # Target circle position.
+            cx = self._circle_center[0] + self.CIRCLE_RADIUS * math.cos(d.circle_angle)
+            cy = self._circle_center[1] + self.CIRCLE_RADIUS * math.sin(d.circle_angle)
+            cz = self._circle_center[2]
+            circle_pos = np.array([cx, cy, cz])
+
+            # Interpolate between grid and circle.
+            target = (1.0 - alpha) * d.grid_pos + alpha * circle_pos
+
+            # Yaw facing center.
+            yaw = math.atan2(
+                self._circle_center[1] - target[1],
+                self._circle_center[0] - target[0],
+            )
+
+            self._publish_offboard_mode(i, position=True)
+            self._publish_trajectory(i, position=target.tolist(), yaw=yaw)
+
+        if elapsed > self.TRANSITION_DURATION:
+            self._advance_phase(Phase.HOLD_CIRCLE)
+
+    # ------------------------------------------------------------------ #
+    # Phase 5: Hold circle (rotate CW)
+    # ------------------------------------------------------------------ #
+    def _phase_hold_circle(self):
+        elapsed = self._phase_elapsed()
+        omega = self.CIRCLE_SPEED / self.CIRCLE_RADIUS  # rad/s
+
+        for i in range(self._num_drones):
+            d = self._drones[i]
+            # CW rotation: subtract omega*t from angle.
+            angle = d.circle_angle - omega * elapsed
+
+            px = self._circle_center[0] + self.CIRCLE_RADIUS * math.cos(angle)
+            py = self._circle_center[1] + self.CIRCLE_RADIUS * math.sin(angle)
+            pz = self._circle_center[2]
+
+            # Yaw facing center.
+            yaw = math.atan2(
+                self._circle_center[1] - py,
+                self._circle_center[0] - px,
+            )
+
+            self._publish_offboard_mode(i, position=True)
+            self._publish_trajectory(
+                i,
+                position=[px, py, pz],
+                yaw=yaw,
+            )
+
+        if elapsed > self.HOLD_CIRCLE_DURATION:
+            self._advance_phase(Phase.KAMIKAZE)
+
+    # ------------------------------------------------------------------ #
+    # Phase 6: Kamikaze dive
+    # ------------------------------------------------------------------ #
+    def _phase_kamikaze(self):
+        all_done = True
+        elapsed = self._phase_elapsed()
+
+        for i in range(self._num_drones):
+            d = self._drones[i]
+
+            if d.impacted:
+                continue
+            all_done = False
+
+            # Direction to target.
+            to_target = self._target - d.position
+            dist = np.linalg.norm(to_target)
+
+            # Impact detection.
+            if dist < self.IMPACT_DIST and d.position[2] > self.IMPACT_Z_THRESH:
+                self.get_logger().info(
+                    f'[Drone {i}] Impact! pos=[{d.position[0]:.1f}, '
+                    f'{d.position[1]:.1f}, {d.position[2]:.1f}]')
+                d.impacted = True
+                self._disarm_force(i)
+                continue
+
+            # Velocity toward target.
+            if dist > 0.01:
+                direction = to_target / dist
+            else:
+                direction = np.array([1.0, 0.0, 0.0])
+            vel = (direction * self.KAMIKAZE_SPEED).tolist()
+
+            # Yaw toward target.
+            yaw = math.atan2(to_target[1], to_target[0])
+
+            self._publish_offboard_mode(i, velocity=True)
+            self._publish_trajectory(i, velocity=vel, yaw=yaw)
+
+        # Log kamikaze progress every 10 seconds.
+        elapsed_int = int(elapsed)
+        if elapsed_int > 0 and elapsed_int % 10 == 0 and elapsed - elapsed_int < 0.1:
+            for i, d in enumerate(self._drones):
+                if not d.impacted:
+                    dist = np.linalg.norm(self._target - d.position)
+                    self.get_logger().info(
+                        f'KAMIKAZE {elapsed:.0f}s: D{i} pos=[{d.position[0]:.1f}, '
+                        f'{d.position[1]:.1f}, {d.position[2]:.1f}] '
+                        f'dist={dist:.1f}m armed={d.armed}')
+
+        if all_done or elapsed > self.KAMIKAZE_TIMEOUT:
+            self._print_summary()
+            self._advance_phase(Phase.DONE)
+            # Shutdown after a short delay to let final messages flush.
+            self.create_timer(1.0, lambda: self._shutdown())
+
+    def _print_summary(self):
+        impacted = sum(1 for d in self._drones if d.impacted)
+        total_time = self._mission_elapsed()
+        self.get_logger().info('=' * 50)
+        self.get_logger().info('SWARM MISSION SUMMARY')
+        self.get_logger().info(f'  Drones: {self._num_drones}')
+        self.get_logger().info(f'  Impacts: {impacted}/{self._num_drones}')
+        self.get_logger().info(f'  Total time: {total_time:.1f}s')
+        self.get_logger().info('=' * 50)
+
+    def _shutdown(self):
+        self.get_logger().info('Swarm controller shutting down.')
+        self._timer.cancel()
+        raise SystemExit(0)
+
+
+def main(args=None):
+    rclpy.init(args=args)
+    node = SwarmController()
+    try:
+        rclpy.spin(node)
+    except (KeyboardInterrupt, SystemExit):
+        node.get_logger().info('Swarm controller exiting.')
+    finally:
+        node.destroy_node()
+        rclpy.try_shutdown()
+
+
+if __name__ == '__main__':
+    main()

Tools/simulation/swarm_ros2/swarm_ros2/vision_provider.py

@@ -0,0 +1,156 @@
+"""
+Vision provider node for PX4 EKF2 external vision fusion.
+
+Subscribes to ground truth local position and publishes noisy visual odometry
+estimates, simulating an external vision system (e.g., motion capture, VIO).
+
+One instance runs per drone. The node decimates to 30 Hz and adds configurable
+Gaussian noise to position and velocity.
+"""
+
+import numpy as np
+import rclpy
+from rclpy.node import Node
+from rclpy.qos import QoSProfile, ReliabilityPolicy, HistoryPolicy, DurabilityPolicy
+
+from px4_msgs.msg import VehicleLocalPosition as VehicleLocalPositionGroundtruth
+from px4_msgs.msg import VehicleOdometry
+
+
+# QoS profile matching PX4 uORB-to-DDS bridge defaults.
+PX4_QOS = QoSProfile(
+    reliability=ReliabilityPolicy.BEST_EFFORT,
+    durability=DurabilityPolicy.TRANSIENT_LOCAL,
+    history=HistoryPolicy.KEEP_LAST,
+    depth=1,
+)
+
+
+class VisionProvider(Node):
+    """Publishes noisy VehicleOdometry derived from ground truth."""
+
+    # Noise standard deviations
+    POS_NOISE_STD = 0.5       # metres
+    ANG_VEL_NOISE_STD = 0.1   # rad/s (unused but kept for completeness)
+
+    # Output rate target
+    OUTPUT_HZ = 30.0
+    OUTPUT_PERIOD_US = int(1e6 / OUTPUT_HZ)
+
+    def __init__(self):
+        # Declare parameters before calling super().__init__ so they are
+        # available immediately.
+        super().__init__('vision_provider')
+
+        self.declare_parameter('namespace', 'px4_0')
+        self.declare_parameter('instance_id', 0)
+
+        self._namespace = self.get_parameter('namespace').value
+        self._instance_id = self.get_parameter('instance_id').value
+
+        self.get_logger().info(
+            f'Starting vision_provider_{self._instance_id} '
+            f'for namespace /{self._namespace}'
+        )
+        self.get_logger().warn(
+            'Note: vehicle_local_position_groundtruth is NOT published '
+            'over DDS by PX4. This node is a no-op when using '
+            'sensor_agp_sim (SENS_EN_AGPSIM=1) for position. '
+            'It will only produce output if EV fusion is enabled and '
+            'ground truth is published via a custom DDS bridge.'
+        )
+
+        self._last_pub_time_us: int = 0
+        self._msg_count: int = 0
+        self._rng = np.random.default_rng()
+
+        # -- Subscriber: ground truth local position --
+        # Note: PX4 SIH does not publish this topic over XRCE-DDS.
+        # With sensor_agp_sim, EKF2 gets position internally.
+        gt_topic = f'/{self._namespace}/fmu/out/vehicle_local_position_groundtruth'
+        self._sub_gt = self.create_subscription(
+            VehicleLocalPositionGroundtruth,
+            gt_topic,
+            self._gt_callback,
+            PX4_QOS,
+        )
+
+        # -- Publisher: visual odometry for EKF2 --
+        vo_topic = f'/{self._namespace}/fmu/in/vehicle_visual_odometry'
+        self._pub_vo = self.create_publisher(VehicleOdometry, vo_topic, PX4_QOS)
+
+    # --------------------------------------------------------------------- #
+    # Callback
+    # --------------------------------------------------------------------- #
+    def _gt_callback(self, msg: VehicleLocalPositionGroundtruth):
+        """Decimate ground truth and publish noisy visual odometry."""
+        now_us = int(self.get_clock().now().nanoseconds / 1000)
+
+        # Rate-limit to OUTPUT_HZ.
+        if (now_us - self._last_pub_time_us) < self.OUTPUT_PERIOD_US:
+            return
+        self._last_pub_time_us = now_us
+
+        # Build VehicleOdometry message.
+        vo = VehicleOdometry()
+        vo.timestamp = now_us
+        vo.timestamp_sample = msg.timestamp
+
+        # Frames: NED
+        vo.pose_frame = VehicleOdometry.POSE_FRAME_NED
+        vo.velocity_frame = VehicleOdometry.VELOCITY_FRAME_NED
+
+        # Position with Gaussian noise.
+        noise_pos = self._rng.normal(0.0, self.POS_NOISE_STD, size=3).astype(np.float32)
+        vo.position = [
+            msg.x + float(noise_pos[0]),
+            msg.y + float(noise_pos[1]),
+            msg.z + float(noise_pos[2]),
+        ]
+
+        # Quaternion (pass through, no noise on orientation).
+        vo.q = [msg.heading, 0.0, 0.0, 0.0]
+        # If ground truth provides a full quaternion, prefer that. The
+        # VehicleLocalPosition message only carries heading; construct a
+        # yaw-only quaternion.
+        half_yaw = msg.heading / 2.0
+        vo.q = [
+            float(np.cos(half_yaw)),
+            0.0,
+            0.0,
+            float(np.sin(half_yaw)),
+        ]
+
+        # Velocity with small noise.
+        noise_vel = self._rng.normal(0.0, 0.1, size=3).astype(np.float32)
+        vo.velocity = [
+            msg.vx + float(noise_vel[0]),
+            msg.vy + float(noise_vel[1]),
+            msg.vz + float(noise_vel[2]),
+        ]
+
+        # Angular velocity (not used, set to zero).
+        vo.angular_velocity = [0.0, 0.0, 0.0]
+
+        # Variances (squared standard deviations).
+        vo.position_variance = [0.25, 0.25, 0.25]       # 0.5^2
+        vo.orientation_variance = [0.01, 0.01, 0.01]
+        vo.velocity_variance = [0.1, 0.1, 0.1]
+
+        self._pub_vo.publish(vo)
+
+
+def main(args=None):
+    rclpy.init(args=args)
+    node = VisionProvider()
+    try:
+        rclpy.spin(node)
+    except KeyboardInterrupt:
+        node.get_logger().info('Shutting down vision provider.')
+    finally:
+        node.destroy_node()
+        rclpy.try_shutdown()
+
+
+if __name__ == '__main__':
+    main()

boards/accton-godwit/ga1/src/board_config.h

@@ -221,8 +221,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -442,7 +444,7 @@
 		GPIO_CAN1_RX,                     \
 		GPIO_CAN2_TX,                     \
 		GPIO_CAN2_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_nPOWER_IN_A,                 \
 		GPIO_nPOWER_IN_B,                 \
 		GPIO_nPOWER_IN_C,                 \

boards/ark/fmu-v6x/default.px4board

@@ -28,12 +28,8 @@ CONFIG_DRIVERS_IMU_INVENSENSE_IIM42653=y
 CONFIG_DRIVERS_IMU_MURATA_SCH16T=y
 CONFIG_COMMON_LIGHT=y
 CONFIG_DRIVERS_MAGNETOMETER_BOSCH_BMM150=y
-CONFIG_DRIVERS_MAGNETOMETER_HMC5883=y
-CONFIG_DRIVERS_MAGNETOMETER_QMC5883L=y
-CONFIG_DRIVERS_MAGNETOMETER_ISENTEK_IST8308=y
 CONFIG_DRIVERS_MAGNETOMETER_ISENTEK_IST8310=y
 CONFIG_DRIVERS_MAGNETOMETER_LIS3MDL=y
-CONFIG_DRIVERS_MAGNETOMETER_LSM303AGR=y
 CONFIG_DRIVERS_MAGNETOMETER_RM3100=y
 CONFIG_DRIVERS_MAGNETOMETER_ST_IIS2MDC=y
 CONFIG_DRIVERS_POWER_MONITOR_INA226=y

boards/ark/fmu-v6x/init/rc.board_defaults

@@ -17,21 +17,21 @@ param set-default MAV_2_UDP_PRT 14550
 param set-default SENS_EN_INA226 1
 param set-default SENS_EN_THERMAL 1
 param set-default SENS_IMU_MODE 1
-param set-default SENS_IMU_TEMP 10.0
-#param set-default SENS_IMU_TEMP_FF 0.0
-#param set-default SENS_IMU_TEMP_I 0.025
-#param set-default SENS_IMU_TEMP_P 1.0
+param set-default HEATER1_TEMP 10.0
+#param set-default HEATER1_TEMP_FF 0.0
+#param set-default HEATER1_TEMP_I 0.025
+#param set-default HEATER1_TEMP_P 1.0
 
 param set-default UAVCAN_ESC_IFACE 2
 
 if ver hwtypecmp ARKV6X000
 then
-	param set-default SENS_TEMP_ID 2818058
+	param set-default HEATER1_IMU_ID 2818058
 fi
 
 if ver hwtypecmp ARKV6X001
 then
-	param set-default SENS_TEMP_ID 3014666
+	param set-default HEATER1_IMU_ID 3014666
 fi
 
 safety_button start

boards/ark/fmu-v6x/init/rc.board_sensors

@@ -100,7 +100,7 @@ bmp388 -I start
 # Start an external PWM generator
 if param greater PCA9685_EN_BUS 0
 then
-	pca9685_pwm_out start
+	pca9685_pwm_out start -X
 fi
 
 unset HAVE_PM2

boards/ark/fmu-v6x/src/board_config.h

@@ -224,8 +224,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -445,7 +447,7 @@
 		GPIO_CAN1_RX,                     \
 		GPIO_CAN2_TX,                     \
 		GPIO_CAN2_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_nPOWER_IN_A,                 \
 		GPIO_nPOWER_IN_B,                 \
 		GPIO_nPOWER_IN_C,                 \

boards/ark/fmu-v6x/zenoh.px4board

@@ -0,0 +1,5 @@
+# CONFIG_BOARD_UAVCAN_TIMER_OVERRIDE is not set
+CONFIG_BOARD_CONSTRAINED_FLASH=y
+CONFIG_BOARD_CONSTRAINED_MEMORY=y
+CONFIG_MODULES_UXRCE_DDS_CLIENT=n
+CONFIG_MODULES_ZENOH=y

boards/ark/fpv/init/rc.board_defaults

@@ -15,17 +15,19 @@ fi
 
 # TODO: Tune the following parameters
 param set-default SENS_EN_THERMAL 1
-param set-default SENS_IMU_TEMP 10.0
-#param set-default SENS_IMU_TEMP_FF 0.0
-#param set-default SENS_IMU_TEMP_I 0.025
-#param set-default SENS_IMU_TEMP_P 1.0
+param set-default HEATER1_TEMP 10.0
+#param set-default HEATER1_TEMP_FF 0.0
+#param set-default HEATER1_TEMP_I 0.025
+#param set-default HEATER1_TEMP_P 1.0
 
 if ver hwtypecmp ARKFPV000
 then
-	param set-default SENS_TEMP_ID 3014666
+	param set-default HEATER1_IMU_ID 3014666
 fi
 
 param set-default BAT1_V_DIV 21.0
+param set-default BAT1_V_FILT 0.075
+param set-default BAT1_I_FILT 0.5
 
 param set-default RC_CRSF_PRT_CFG 300
 param set-default RC_SBUS_PRT_CFG 0

boards/ark/fpv/init/rc.board_sensors

@@ -20,5 +20,5 @@ bmp388 -I -b 2 start
 # Start an external PWM generator
 if param greater PCA9685_EN_BUS 0
 then
-	pca9685_pwm_out start
+	pca9685_pwm_out start -X
 fi

boards/ark/fpv/src/board_config.h

@@ -176,9 +176,6 @@
 
 #define BOARD_BATTERY1_V_DIV	 (21.0f) // (20k + 1k) / 1k = 21
 
-#define BOARD_BATTERY_ADC_VOLTAGE_FILTER_S 0.075f
-#define BOARD_BATTERY_ADC_CURRENT_FILTER_S 0.125f
-
 #define ADC_SCALED_PAYLOAD_SENSE ADC_SCALED_12V_CHANNEL
 
 /* HW has to large of R termination on ADC todo:change when HW value is chosen */
@@ -208,8 +205,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -331,7 +330,7 @@
 		GPIO_HW_VER_REV_DRIVE,            \
 		GPIO_CAN1_TX,                     \
 		GPIO_CAN1_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_VDD_5V_PGOOD,                \
 		GPIO_VDD_12V_PGOOD,               \
 		GPIO_VDD_12V_EN,                  \

boards/ark/pi6x/init/rc.board_defaults

@@ -21,17 +21,17 @@ param set-default SENS_EN_INA226 1
 
 # TODO: Tune the following parameters
 param set-default SENS_EN_THERMAL 1
-param set-default SENS_IMU_TEMP 10.0
-#param set-default SENS_IMU_TEMP_FF 0.0
-#param set-default SENS_IMU_TEMP_I 0.025
-#param set-default SENS_IMU_TEMP_P 1.0
+param set-default HEATER1_TEMP 10.0
+#param set-default HEATER1_TEMP_FF 0.0
+#param set-default HEATER1_TEMP_I 0.025
+#param set-default HEATER1_TEMP_P 1.0
 
 param set-default UAVCAN_ESC_IFACE 1
 
 if ver hwtypecmp ARKPI6X000
 then
 	# TODO: Add the correct sensor ID
-	param set-default SENS_TEMP_ID 2490378
+	param set-default HEATER1_IMU_ID 2490378
 fi
 
 param set-default EKF2_MULTI_IMU 0

boards/ark/pi6x/init/rc.board_sensors

@@ -38,5 +38,5 @@ afbrs50 start
 # Start an external PWM generator
 if param greater PCA9685_EN_BUS 0
 then
-	pca9685_pwm_out start
+	pca9685_pwm_out start -X
 fi

boards/ark/pi6x/src/board_config.h

@@ -188,8 +188,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -333,7 +335,7 @@
 		GPIO_HW_VER_REV_DRIVE,            \
 		GPIO_CAN1_TX,                     \
 		GPIO_CAN1_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_VDD_5V_HIPOWER_nEN,          \
 		GPIO_VDD_5V_HIPOWER_nOC,          \
 		GPIO_VDD_3V3_SD_CARD_EN,          \

boards/atl/mantis-edu/src/board_config.h

@@ -121,7 +121,9 @@
 #define BOARD_REAR_LED_MASK  (1 << 1) | (1 << 2)
 
 /* HEATER */
-#define GPIO_HEATER_OUTPUT   /* PA7  T14CH1 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN7)
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PA7  T14CH1 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN7)
 
 #define BOARD_HAS_LED_PWM              1
 #define BOARD_LED_PWM_DRIVE_ACTIVE_LOW 1
@@ -182,7 +184,7 @@
 		PX4_ADC_GPIO,                     \
 		GPIO_HW_REV_DRIVE,                \
 		GPIO_HW_VER_DRIVE,                \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_VDD_3V3_SD_CARD_EN,          \
 		GPIO_OTGFS_VBUS                   \
 	}

boards/auterion/fmu-v6s/default.px4board

@@ -55,6 +55,7 @@ CONFIG_MODULES_HARDFAULT_STREAM=y
 CONFIG_MODULES_LAND_DETECTOR=y
 CONFIG_MODULES_LANDING_TARGET_ESTIMATOR=y
 CONFIG_MODULES_LOAD_MON=y
+CONFIG_MODULES_TASK_WATCHDOG=y
 CONFIG_MODULES_LOGGER=y
 CONFIG_LOGGER_STACK_SIZE=4100
 CONFIG_MODULES_MAG_BIAS_ESTIMATOR=y

boards/auterion/fmu-v6s/init/rc.board_defaults

@@ -34,5 +34,8 @@ nshterm /dev/ttyS3 &
 # Start the time_persistor to cyclically store the RTC in FRAM
 time_persistor start
 
+# Start the task_watchdog as we do not have the logger watchdog
+task_watchdog start
+
 # Start the ESC telemetry
 dshot telemetry -d /dev/ttyS5 -x

boards/auterion/fmu-v6s/init/rc.board_sensors

@@ -77,5 +77,5 @@ ist8310 -X -b 1 -R 10 start
 # Start an external PWM generator
 if param greater PCA9685_EN_BUS 0
 then
-	pca9685_pwm_out start
+	pca9685_pwm_out start -X
 fi

boards/auterion/fmu-v6x/src/board_config.h

@@ -224,8 +224,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -443,7 +445,7 @@
 		GPIO_CAN1_RX,                     \
 		GPIO_CAN2_TX,                     \
 		GPIO_CAN2_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_nPOWER_IN_A,                 \
 		GPIO_nPOWER_IN_B,                 \
 		GPIO_nPOWER_IN_C,                 \

boards/bluerobotics/navigator/init/rc.board_sensors

@@ -28,7 +28,7 @@ then
 	echo "ads1115 not found."
 fi
 
-if ! pca9685_pwm_out start
+if ! pca9685_pwm_out start -X
 then
 	echo "pca9685_pwm_out not found."
 fi

boards/cuav/fmu-v6x/init/rc.board_sensors

@@ -66,15 +66,15 @@ then
 	fi
 fi
 
+iim42652 -R 6 -s -C 32768 start
 bmi088 -A -R 4 -s start
 bmi088 -G -R 4 -s start
-iim42652 -R 6 -s -C 32768 start
 icm45686 -R 2 -s start
 
 rm3100 -I -b 4 start
 
-icp201xx -I -a 0x64 start
 bmp581 -b 2 -X -a 0x47 start
+icp201xx -I -a 0x64 start
 
 # External compass on GPS1/I2C1 (the 3rd external bus): standard Holybro Pixhawk 4 or CUAV V5 GPS/compass puck (with lights, safety button, and buzzer)
 ist8310 -X -b 1 -R 10 start

boards/cuav/fmu-v6x/src/board_config.h

@@ -230,8 +230,10 @@
 /* HEATER
  * PWM in future
  */
-#define GPIO_HEATER_OUTPUT   /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
-#define HEATER_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PB10  T2CH3 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN10)
+#define HEATER1_OUTPUT_EN(on_true)	       px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PE6 is nARMED
  *  The GPIO will be set as input while not armed HW will have external HW Pull UP.
@@ -453,7 +455,7 @@
 		GPIO_CAN1_RX,                     \
 		GPIO_CAN2_TX,                     \
 		GPIO_CAN2_RX,                     \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_nPOWER_IN_A,                 \
 		GPIO_nPOWER_IN_B,                 \
 		GPIO_nPOWER_IN_C,                 \

boards/cuav/nora/src/board_config.h

@@ -104,8 +104,10 @@
 #define GPIO_CAN2_SILENT_S1  /* PH3  */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTH|GPIO_PIN3)
 
 /* HEATER */
-#define GPIO_HEATER_OUTPUT   /* PA8 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN8)
-#define HEATER_OUTPUT_EN(on_true)      px4_arch_gpiowrite(GPIO_HEATER_OUTPUT, (on_true))
+#define GPIO_HEATER_OUTPUT
+#define HEATER_NUM 	1
+#define GPIO_HEATER1_OUTPUT  /* PA8 */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN8)
+#define HEATER1_OUTPUT_EN(on_true)      px4_arch_gpiowrite(GPIO_HEATER1_OUTPUT, (on_true))
 
 /* PWM */
 #define DIRECT_PWM_OUTPUT_CHANNELS   14
@@ -127,8 +129,8 @@
 #define GPIO_VDD_5V_RC_EN               /* PG5  */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTG|GPIO_PIN5)
 #define GPIO_VDD_3V3_SD_CARD_EN         /* PG7  */ (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTG|GPIO_PIN7)
 
-#define GPIO_VDD_5V_HIPOWER_OC          /* PJ3 */  (GPIO_INPUT|GPIO_FLOAT|GPIO_PORTJ|GPIO_PIN3)
-#define GPIO_nVDD_5V_PERIPH_OC          /* PJ4 */  (GPIO_INPUT|GPIO_FLOAT|GPIO_PORTJ|GPIO_PIN4)
+#define GPIO_VDD_5V_HIPOWER_OC          /* PJ3 */  (GPIO_INPUT|GPIO_PULLUP|GPIO_PORTJ|GPIO_PIN3)
+#define GPIO_nVDD_5V_PERIPH_OC          /* PJ4 */  (GPIO_INPUT|GPIO_PULLUP|GPIO_PORTJ|GPIO_PIN4)
 
 /* Power switch controls ******************************************************/
 #define VDD_5V_PERIPH_EN(on_true)          px4_arch_gpiowrite(GPIO_nVDD_5V_PERIPH_EN, (on_true))
@@ -212,7 +214,7 @@
 		GPIO_CAN2_RX,                     \
 		GPIO_CAN1_SILENT_S0,              \
 		GPIO_CAN2_SILENT_S1,              \
-		GPIO_HEATER_OUTPUT,               \
+		GPIO_HEATER1_OUTPUT,              \
 		GPIO_nPOWER_IN_CAN,               \
 		GPIO_nPOWER_IN_ADC,               \
 		GPIO_nPOWER_IN_C,                 \

boards/cuav/x25-evo/CMakeLists.txt

@@ -31,5 +31,4 @@
 #
 ############################################################################
 
-add_subdirectory(core_heater)
 add_subdirectory(pwm_voltage)

boards/cuav/x25-evo/core_heater/core_heater.cpp

@@ -1,261 +0,0 @@
-/****************************************************************************
- *
- *   Copyright (c) 2025 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name PX4 nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/**
- * @file core_heater.cpp
- *
- */
-
-#include "core_heater.h"
-
-#include <px4_platform_common/getopt.h>
-#include <px4_platform_common/log.h>
-#include <drivers/drv_hrt.h>
-#include <drivers/drv_io_heater.h>
-
-#  ifndef GPIO_CORE_HEATER_OUTPUT
-#  error "To use the heater driver, the board_config.h must define and initialize GPIO_CORE_HEATER_OUTPUT"
-#  endif
-
-Core_Heater::Core_Heater() :
-	ModuleParams(nullptr),
-	ScheduledWorkItem(MODULE_NAME, px4::wq_configurations::lp_default)
-{
-	_heater_status_pub.advertise();
-}
-
-Core_Heater::~Core_Heater()
-{
-	disable_core_heater();
-}
-
-int Core_Heater::custom_command(int argc, char *argv[])
-{
-	// Check if the driver is running.
-	if (!is_running()) {
-		PX4_INFO("not running");
-		return PX4_ERROR;
-	}
-
-	return print_usage("Unrecognized command.");
-}
-
-void Core_Heater::disable_core_heater()
-{
-	// Reset heater to off state.
-	px4_arch_unconfiggpio(GPIO_CORE_HEATER_OUTPUT);
-}
-
-void Core_Heater::initialize_core_heater_io()
-{
-	// Initialize heater to off state.
-	px4_arch_configgpio(GPIO_CORE_HEATER_OUTPUT);
-}
-
-void Core_Heater::core_heater_off()
-{
-	CORE_HEATER_OUTPUT_EN(false);
-}
-
-void Core_Heater::core_heater_on()
-{
-	CORE_HEATER_OUTPUT_EN(true);
-}
-
-bool Core_Heater::initialize_topics()
-{
-	for (uint8_t i = 0; i < ORB_MULTI_MAX_INSTANCES; i++) {
-		uORB::SubscriptionData<sensor_accel_s> sensor_accel_sub{ORB_ID(sensor_accel), i};
-
-		if (sensor_accel_sub.get().timestamp != 0 &&
-		    sensor_accel_sub.get().device_id != 0 &&
-		    PX4_ISFINITE(sensor_accel_sub.get().temperature)) {
-
-			// If the correct ID is found, exit the for-loop with _sensor_accel_sub pointing to the correct instance.
-			if (sensor_accel_sub.get().device_id == (uint32_t)_param_core_temp_id.get()) {
-				_sensor_accel_sub.ChangeInstance(i);
-				_sensor_device_id = sensor_accel_sub.get().device_id;
-				initialize_core_heater_io();
-				return true;
-			}
-		}
-	}
-
-	return false;
-}
-
-void Core_Heater::Run()
-{
-	if (should_exit()) {
-		exit_and_cleanup();
-		return;
-	}
-
-	update_params();
-
-	if (_sensor_device_id == 0) {
-		if (!initialize_topics()) {
-			// if sensor still not found try again in 1 second
-			ScheduleDelayed(1_s);
-			return;
-		}
-	}
-
-	sensor_accel_s sensor_accel;
-	float temperature_delta {0.f};
-
-	if (_core_heater_on) {
-		// Turn the heater off.
-		_core_heater_on = false;
-		core_heater_off();
-		ScheduleDelayed(_controller_period_usec - _controller_time_on_usec);
-
-	} else if (_sensor_accel_sub.update(&sensor_accel)) {
-		// Update the current IMU sensor temperature if valid.
-		if (PX4_ISFINITE(sensor_accel.temperature)) {
-			temperature_delta = _param_core_imu_temp.get() - sensor_accel.temperature;
-			_temperature_last = sensor_accel.temperature;
-		}
-
-		_proportional_value = temperature_delta * _param_core_imu_temp_p.get();
-		_integrator_value += temperature_delta * _param_core_imu_temp_i.get();
-
-		_integrator_value = math::constrain(_integrator_value, -0.25f, 0.25f);
-
-		_controller_time_on_usec = static_cast<int>((_param_core_imu_temp_ff.get() + _proportional_value +
-					   _integrator_value) * static_cast<float>(_controller_period_usec));
-
-		_controller_time_on_usec = math::constrain(_controller_time_on_usec, 0, _controller_period_usec);
-
-		if (fabsf(temperature_delta) < TEMPERATURE_TARGET_THRESHOLD) {
-			_temperature_target_met = true;
-
-		} else {
-
-			_temperature_target_met = false;
-		}
-
-		_core_heater_on = true;
-		core_heater_on();
-		ScheduleDelayed(_controller_time_on_usec);
-	}
-
-	publish_status();
-}
-
-void Core_Heater::publish_status()
-{
-	heater_status_s status{};
-	status.device_id               = _sensor_device_id;
-	status.heater_on               = _core_heater_on;
-	status.temperature_sensor      = _temperature_last;
-	status.temperature_target      = _param_core_imu_temp.get();
-	status.temperature_target_met  = _temperature_target_met;
-	status.controller_period_usec  = _controller_period_usec;
-	status.controller_time_on_usec = _controller_time_on_usec;
-	status.proportional_value      = _proportional_value;
-	status.integrator_value        = _integrator_value;
-	status.feed_forward_value      = _param_core_imu_temp_ff.get();
-
-	status.mode = heater_status_s::MODE_GPIO;
-
-	status.timestamp = hrt_absolute_time();
-	_heater_status_pub.publish(status);
-}
-
-int Core_Heater::start()
-{
-	// Exit the driver if the sensor ID does not match the desired sensor.
-	if (_param_core_temp_id.get() == 0) {
-		PX4_ERR("Valid CORE_TEMP_ID required");
-		request_stop();
-		return PX4_ERROR;
-	}
-
-	update_params(true);
-	ScheduleNow();
-	return PX4_OK;
-}
-
-int Core_Heater::task_spawn(int argc, char *argv[])
-{
-	Core_Heater *core_heater = new Core_Heater();
-
-	if (!core_heater) {
-		PX4_ERR("driver allocation failed");
-		return PX4_ERROR;
-	}
-
-	_object.store(core_heater);
-	_task_id = task_id_is_work_queue;
-
-	core_heater->start();
-	return 0;
-}
-
-void Core_Heater::update_params(const bool force)
-{
-	if (_parameter_update_sub.updated() || force) {
-		// clear update
-		parameter_update_s param_update;
-		_parameter_update_sub.copy(&param_update);
-
-		// update parameters from storage
-		ModuleParams::updateParams();
-	}
-}
-
-int Core_Heater::print_usage(const char *reason)
-{
-	if (reason) {
-		printf("%s\n\n", reason);
-	}
-
-	PRINT_MODULE_DESCRIPTION(
-		R"DESCR_STR(
-### Description
-Background process running periodically on the LP work queue to regulate IMU temperature at a setpoint.
-
-)DESCR_STR");
-
-	PRINT_MODULE_USAGE_NAME("core_heater", "system");
-	PRINT_MODULE_USAGE_COMMAND("start");
-	PRINT_MODULE_USAGE_DEFAULT_COMMANDS();
-
-	return 0;
-}
-
-extern "C" __EXPORT int core_heater_main(int argc, char *argv[])
-{
-	return Core_Heater::main(argc, argv);
-}

boards/cuav/x25-evo/core_heater/core_heater.h

@@ -1,159 +0,0 @@
-/****************************************************************************
- *
- *   Copyright (c) 2025 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name PX4 nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/**
- * @file core_heater.h
- *
- */
-
-#pragma once
-
-#include <px4_platform_common/px4_config.h>
-#include <px4_platform_common/getopt.h>
-#include <px4_platform_common/module.h>
-#include <px4_platform_common/module_params.h>
-#include <px4_platform_common/px4_work_queue/ScheduledWorkItem.hpp>
-#include <uORB/Publication.hpp>
-#include <uORB/SubscriptionInterval.hpp>
-#include <uORB/topics/heater_status.h>
-#include <uORB/topics/parameter_update.h>
-#include <uORB/topics/sensor_accel.h>
-
-#include <mathlib/mathlib.h>
-
-using namespace time_literals;
-
-#define CONTROLLER_PERIOD_DEFAULT    10000
-#define TEMPERATURE_TARGET_THRESHOLD 2.5f
-
-class Core_Heater : public ModuleBase<Core_Heater>, public ModuleParams, public px4::ScheduledWorkItem
-{
-public:
-	Core_Heater();
-
-	virtual ~Core_Heater();
-
-	/**
-	 * @see ModuleBase::custom_command().
-	 * @brief main Main entry point to the module that should be
-	 *        called directly from the module's main method.
-	 * @param argc The input argument count.
-	 * @param argv Pointer to the input argument array.
-	 * @return Returns 0 iff successful, -1 otherwise.
-	 */
-	static int custom_command(int argc, char *argv[]);
-
-	/**
-	 * @see ModuleBase::print_usage().
-	 * @brief Prints the module usage to the nuttshell console.
-	 * @param reason The requested reason for printing to console.
-	 */
-	static int print_usage(const char *reason = nullptr);
-
-	/**
-	 * @see ModuleBase::task_spawn().
-	 * @brief Initializes the class in the same context as the work queue
-	 *        and starts the background listener.
-	 * @param argv Pointer to the input argument array.
-	 * @return Returns 0 iff successful, -1 otherwise.
-	 */
-	static int task_spawn(int argc, char *argv[]);
-
-	/**
-	 * @brief Initiates the heater driver work queue, starts a new background task,
-	 *        and fails if it is already running.
-	 * @return Returns 1 iff start was successful.
-	 */
-	int start();
-
-private:
-
-	/** Disables the heater (either by GPIO). */
-	void disable_core_heater();
-
-	/** Turns the heater on (either by GPIO). */
-	void core_heater_on();
-
-	/** Turns the heater off (either by GPIO). */
-	void core_heater_off();
-
-	void initialize();
-
-	/** Enables / configures the heater (either by GPIO). */
-	void initialize_core_heater_io();
-
-	/** @brief Called once to initialize uORB topics. */
-	bool initialize_topics();
-
-	void publish_status();
-
-	/** @brief Calculates the heater element on/off time and schedules the next cycle. */
-	void Run() override;
-
-	/**
-	 * @brief Updates and checks for updated uORB parameters.
-	 * @param force Boolean to determine if an update check should be forced.
-	 */
-	void update_params(const bool force = false);
-
-	/** Work queue struct for the scheduler. */
-	static struct work_s _work;
-
-	bool _core_heater_initialized     = false;
-	bool _core_heater_on              = false;
-	bool _temperature_target_met = false;
-
-	int _controller_period_usec = CONTROLLER_PERIOD_DEFAULT;
-	int _controller_time_on_usec = 0;
-
-	float _integrator_value   = 0.0f;
-	float _proportional_value = 0.0f;
-
-	uORB::Publication<heater_status_s> _heater_status_pub{ORB_ID(heater_status)};
-
-	uORB::SubscriptionInterval _parameter_update_sub{ORB_ID(parameter_update), 1_s};
-
-	uORB::Subscription _sensor_accel_sub{ORB_ID(sensor_accel)};
-
-	uint32_t _sensor_device_id{0};
-
-	float _temperature_last{NAN};
-
-	DEFINE_PARAMETERS(
-		(ParamFloat<px4::params::CORE_IMU_TEMP_FF>) _param_core_imu_temp_ff,
-		(ParamFloat<px4::params::CORE_IMU_TEMP_I>)  _param_core_imu_temp_i,
-		(ParamFloat<px4::params::CORE_IMU_TEMP_P>)  _param_core_imu_temp_p,
-		(ParamFloat<px4::params::CORE_IMU_TEMP>)    _param_core_imu_temp,
-		(ParamInt<px4::params::CORE_TEMP_ID>)       _param_core_temp_id
-	)
-};