* Bidirectional DShot Co-authored-by: Julian Oes <julian@oes.ch> * f4/f1 support, not supported * fix f1 build target * sanity check timer_channel value, fix CCxNP ifdef, debug stuff * removed debug code, added define for H7 HAVE_GTIM_CCXNP * round robin sampling for less than 4 DMA * unlimited esc_status logging * dshot: fix formatting * dshot: add define for number of DMA channels to use This allows individual boards to override the number of DShot channels and hence avoid round robin capture of the RPM feedback. * ARK: enable 4 DMA channels for DShot on 6X * dshot: publish when all channels are updated This slows down the ESC_STATUS publication in the case of round robin capture. E.g. for 800 Hz output with one DMA channel, the ESC_STATUS is now published at 200 Hz. * dshot: avoid duplicate publications for bidir and telem Instead of publishing both bidirectional dshot updates as well as telemetry updates, we now combine the data from both streams, and publish whenever we get RPM updates, as the latter arrives with higher rate, e.g. 200 Hz with round robin, or faster otherwise. When combining the data, we take RPM from bidirectional dshot, and the rest from telemetry. When we have only one of the two, either telemetry or bidirectional dshot, we just publish that one. * boards: add ark fpv and pi6x BOARD_DMA_NUM_DSHOT_CHANNELS * dshot: turn off debug build --------- Co-authored-by: Julian Oes <julian@oes.ch> Co-authored-by: alexklimaj <alex@arkelectron.com>
PX4 Drone Autopilot
This repository holds the PX4 flight control solution for drones, with the main applications located in the src/modules directory. It also contains the PX4 Drone Middleware Platform, which provides drivers and middleware to run drones.
PX4 is highly portable, OS-independent and supports Linux, NuttX and MacOS out of the box.
- Official Website: http://px4.io (License: BSD 3-clause, LICENSE)
- Supported airframes (portfolio):
- Multicopters
- Fixed wing
- VTOL
- Autogyro
- Rover
- many more experimental types (Blimps, Boats, Submarines, High Altitude Balloons, Spacecraft, etc)
- Releases: Downloads
Releases
Release notes and supporting information for PX4 releases can be found on the Developer Guide.
Building a PX4 based drone, rover, boat or robot
The PX4 User Guide explains how to assemble supported vehicles and fly drones with PX4. See the forum and chat if you need help!
Changing Code and Contributing
This Developer Guide 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.
Developers should read the Guide for Contributions. See the forum and chat if you need help!
Weekly Dev Call
The PX4 Dev Team syncs up on a weekly dev call.
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.
Maintenance Team
See the latest list of maintainers on MAINTAINERS file at the root of the project.
For the latest stats on contributors please see the latest stats for the Dronecode ecosystem in our project dashboard under LFX Insights. For information on how to update your profile and affiliations please see the following support link on how to Complete Your LFX Profile. Dronecode publishes a yearly snapshot of contributions and achievements on its website under the Reports section.
Supported Hardware
For the most up to date information, please visit PX4 User Guide > Autopilot Hardware.
Project Governance
The PX4 Autopilot project including all of its trademarks is hosted under Dronecode, part of the Linux Foundation.

