> For the complete documentation index, see [llms.txt](https://px4.gitbook.io/px4-user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://px4.gitbook.io/px4-user-guide/drone_parts/flight_controller/autopilot_experimental.md).

# Experimental Autopilots

:::tip For more information about PX4 project autopilot board support levels see: [px4.io/autopilots/](https://px4.io/autopilots/). :::

## Experimental Autopilots

This category is for experimental autopilots (and autopilot "platforms") that are *not supported* by either the PX4 project team or by a manufacturer.

* [BeagleBone Blue](/px4-user-guide/drone_parts/flight_controller/autopilot_experimental/beaglebone_blue.md)
* [Raspberry Pi 2/3 Navio2](/px4-user-guide/drone_parts/flight_controller/autopilot_experimental/raspberry_pi_navio2.md)
* [Raspberry Pi 2/3/4 PilotPi Shield](/px4-user-guide/drone_parts/flight_controller/autopilot_experimental/raspberry_pi_pilotpi.md)

Boards in this category must work with at least one PX4 release for a defined vehicle type. They may not be compatible with the current PX4 release, and compatibility is not maintained by the project for future releases.

## Experimental Vehicles

These are [complete vehicles](/px4-user-guide/drone_parts/complete_vehicles.md) that have a fully integrated autopilot and other hardware (i.e. unlike the other autopilots listed, you can't use them in your own builds). They are listed in this page because from a PX4 software perspective, they are another autopilot.

* [Bitcraze Crazyflie 2.0](/px4-user-guide/drone_parts/flight_controller/autopilot_discontinued/crazyflie2.md) ([Complete Vehicle](/px4-user-guide/drone_parts/complete_vehicles.md))
* [Bitcraze Crazyflie 2.1](/px4-user-guide/drone_parts/complete_vehicles/crazyflie21.md) ([Complete Vehicle](/px4-user-guide/drone_parts/complete_vehicles.md))