Development Guide

Pixhawk Hardware

Pixhawk is the standard microcontroller platform for the PX4 flight stack. It runs the PX4 Middleware on the NuttX OS. As a CC-BY-SA 3.0 licensed Open Hardware design, all schematics and design files are available. The Pixfalcon is a smaller version of Pixhawk for FPV racers and similar platforms. For drones requiring high processing performance or a camera interface the Snapdragon Flight might be a more optimal fit.

Quick Summary


  • 1x I2C
  • 1x CAN (2x optional)
  • 1x ADC
  • 4x UART (2x with flow control)
  • 1x Console
  • 8x PWM with manual override
  • 6x PWM / GPIO / PWM input
  • S.BUS / PPM / Spektrum input
  • S.BUS output

Pinouts and Schematics

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