px4-firmware/README.md

## PX4 Pro Drone Autopilot ##

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This repository holds the [PX4 Pro](http://px4.io) 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 (see [LICENSE.md](https://github.com/PX4/Firmware/blob/master/LICENSE.md))
*   Supported airframes (more experimental are supported):
  * [Multicopters](http://px4.io/portfolio_category/multicopter/)
  * [Fixed wing](http://px4.io/portfolio_category/plane/)
  * [VTOL](http://px4.io/portfolio_category/vtol/)
*   Releases
  * [Downloads](https://github.com/PX4/Firmware/releases)

### Users ###

Please refer to the [user documentation](http://px4.io) and [user forum](http://discuss.px4.io) for flying drones with the PX4 flight stack.

### Developers ###

  * [Developer Forum / Mailing list](http://groups.google.com/group/px4users)
  * [Guide for Contributions](https://github.com/PX4/Firmware/blob/master/CONTRIBUTING.md)
  * [Developer guide](http://dev.px4.io)


This repository contains code supporting these boards:
  * [Snapdragon Flight](http://dev.px4.io/hardware-snapdragon.html)
  * FMUv1.x
  * FMUv2.x ([Pixhawk](http://dev.px4.io/hardware-pixhawk.html) and [Pixfalcon](http://dev.px4.io/hardware-pixfalcon.html))
  * FMUv3.x ([Pixhawk 2](http://dev.px4.io/hardware-pixhawk.html))
  * FMUv4.x (Pixhawk X and [Pixracer](http://dev.px4.io/hardware-pixracer.html))
  * AeroCore (v1 and v2)
  * STM32F4Discovery (basic support) [Tutorial](https://pixhawk.org/modules/stm32f4discovery)