Pixhawk 2 "The Cube"

The Pixhawk 2 autopilot is a flexible autopilot intended for manufacturers of commercial systems and hobbyists alike. It is based on the Pixhawk-project FMUv3 open hardware design and runs PX4 on the NuttX OS.

The controller is designed to be used with a domain-specific carrier board in order to reduce the wiring, improve reliability, and ease of assembly. For example, a carrier board for a commercial inspection vehicle might include connections for a companion computer, while a carrier board for a racer could includes ESCs form the frame of the vehicle.

The Cube includes vibration isolation on two of the IMU's, with a third fixed IMU as a reference / Backup.

Quick Summary

  • 32bit STM32F427 Cortex M4 core with FPU
  • 168 MHz
  • 256 KB RAM
  • 2 MB Flash (fully accessible)
  • 32 bit STM32F103 failsafe co-processor


Build Instructions

make px4fmu-v3_default upload

Pinouts and Schematics

The board is documented in detailed on the Pixhawk project website.

The datasheet from Hex manufacturing can be found here.


At time of writing (October 2017) the CAN1 and CAN2 silk screen on the Pixhawk 2.1 is flipped (CAN1 is CAN2 and vice versa).

© PX4 Dev Team. License: CC BY 4.0            Updated: 2018-04-26 10:24:41

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