Pixhawk 3 Pro

The Pixhawk® 3 Pro is based on the FMUv4 hardware design (Pixracer) with some upgrades and additional features. The board was designed by Drotek® and PX4.

The main hardware documentation is here: https://pixhawk.drotek.com/en/

Quick Summary

  • Microcontroller: STM32F469; Flash size is 2MiB, RAM size is 384KiB
  • ICM-20608-G gyro / accelerometer
  • MPU-9250 gyro / accelerometer / magnetometer
  • LIS3MDL compass
  • Sensors connected via two SPI buses (one high rate and one low-noise bus)
  • Two I2C buses
  • Two CAN buses
  • Voltage / battery readings from two power modules
  • FrSky® Inverter
  • 8 Main + 6 AUX PWM outputs (Separate IO chip, PX4IO)
  • microSD (logging)
  • S.BUS / Spektrum / SUMD / PPM input
  • JST GH user-friendly connectors: same connectors and pinouts as Pixracer

Where to buy

From Drotek store (EU) :

From readymaderc (USA) :

Building Firmware

Most users will not need to build this firmware! It is pre-built and automatically installed by QGroundControl when appropriate hardware is connected.

To build PX4 for this target:

make px4_fmu-v4pro_default
© PX4 Dev Team. License: CC BY 4.0            Updated: 2020-10-28 22:06:47

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