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that prevents the vehicle from crashing with invalid setpoints or states. This broke with #16869 when the scheduling of the position control module and the setpoint generation got independent. The failsafe mechanism assumed the setpoint is overwirtten by the possibly infeasible input on every loop iteration which is not the case anymore. As a result the failsafe reset its histeresis based on the failsafe setpoint from the last loop iteration. Keeping the failsafe_setpoint separate solves this issue. Note that these setpoints to the bare minimum to keep the vehicle safely in the air and do not suffer from sideffects ignoring the EKF reset.
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, Autogyros, 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
- Architecture
- Dev Call
- Communication Architecture
- UI in QGroundControl
- Multicopter Flight Control
- Multicopter Software Architecture
- VTOL Flight Control
- Fixed Wing Flight Control
- OS / NuttX
- Driver Architecture
- Commander Architecture
- UAVCAN
- State Estimation
- Vision based navigation
- Obstacle Avoidance
- RTPS/ROS2 Interface
See also maintainers list (px4.io) and the contributors list (Github).
Supported Hardware
This repository contains code supporting these boards:
- FMUv2
- FMUv3
- FMUv4
- FMUv5 (ARM Cortex M7)
- Airmind MindPX V2.8
- Airmind MindRacer V1.2
- Bitcraze Crazyflie 2.0
- Omnibus F4 SD
- Holybro Durandal
- Holybro Kakute F7
- Raspberry PI with Navio 2
Additional information about supported hardware can be found in PX4 user Guide > Autopilot Hardware.
Project Roadmap
A high level project roadmap is available here.