ba5efa5642
When running in HITL mode, pwm_out_sim publishes actuator_outputs. px4io unconditionally publishes the uOrb actuator_outputs. When HITL is configured, the px4io copy of the uOrb has all zeros. The result is that there are two publications, one valid, and one all-zeros. This causes the HIL_ACTUATOR_CONTROLS mavlink message to be incorrect (all-zeros) and the SERVO_OUTPUTS_RAW mavlink message to be inconsistent, as it takes the data from one or the other uOrb randomly each cycle. The fix is to let px4io know that HITL is in effect when it is started, and modify px4io to suppress publication in this case. This is a bigger more complicated fix than I would like, but I think it is conceptually correct. Signed-off-by: Nik Langrind <langrind@gmail.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.
- Official Website: http://px4.io (License: BSD 3-clause, LICENSE)
- Supported airframes (portfolio):
- Multicopters
- Fixed wing
- VTOL
- many more experimental types (Rovers, Blimps, Boats, Submarines, etc)
- Releases: Downloads
PX4 Users
The PX4 User Guide explains how to assemble supported vehicles and fly drones with PX4. See the forum and chat if you need help!
PX4 Developers
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
- Project: Founder - Lorenz Meier, Architecture: Daniel Agar
- Communication Architecture
- UI in QGroundControl
- Multicopter Flight Control
- Multicopter Software Architecture
- VTOL Flight Control
- Fixed Wing Flight Control
- OS / NuttX David Sidrane
- Driver Architecture Daniel Agar
- Commander Architecture Julian Oes
- UAVCAN Daniel Agar
- State Estimation - Paul Riseborough
- Vision based navigation
- Obstacle Avoidance - Martina Rivizzigno
- RTPS/ROS2 Interface - Nuno Marques
See also About Us (px4.io) and the contributors list (Github).
Supported Hardware
This repository contains code supporting these boards:
- Snapdragon Flight
- Intel Aero
- Raspberry PI with Navio 2
- Parrot Bebop 2
- FMUv2
- FMUv3 Pixhawk 2
- FMUv4
- FMUv5 (ARM Cortex M7)
- Airmind MindPX V2.8
- Airmind MindRacer V1.2
- Bitcraze Crazyflie 2.0
Additional information about supported hardware can be found in PX4 user Guide > Autopilot Hardware.
Project Roadmap
A high level project roadmap is available here.