24c58db9e6
This fixes the battery failsafe for the following corner cases: - Battery failsafe set to Return but we can't do RTL because we don't have a global position or home position. In this case we now switch to Land. Land might end up in Descend in the failsafe state machine later. - Battery failsafe set to Land but we can't land because we don't have a local position. In this case we switch to land anyway and then fall back to descend in the failsafe state machine later. The "fix" involves ignoring using the main_state_transition and implementing the guards in place. This is a hack for now but should cover the corner case until a more thorough refactor. The different failsafe state machines have involved over time from requirements and learnings based on developed solutions and products. The implementations in various places will need to get consolidated in the future. Tested in SITL for Return and Land with and without GPS.
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.