Pixhack V3

WARNING

PX4 does not manufacture this (or any) autopilot. Contact the manufacturer (opens new window) for hardware support or compliance issues.

The CUAV Pixhack V3 flight controller board is a flexible autopilot intended primarily for manufacturers of commercial systems.

The board is a variant of the SOLO Pixhawk^® 2 (PH2) flight controller, which is in turn based on the Pixhawk-project (opens new window) FMUv3 open hardware design. It runs PX4 on the NuttX (opens new window) OS, and is fully compatible with both PX4 or ArduPilot^® (APM) firmware.

Pixhack V3 has significant improvements with respect to the original design, including better interface layout and the addition of vibration damping and a thermostat system.

Note

This flight controller is manufacturer supported.

Quick Summary

• Microprocessor:
  • STM32F427
  • STM32F100 (Failsafe co-processor)
• Sensors:
  • Accelerometers (3): LS303D, MPU6000, MPU9250/hmc5983
  • Gyroscopes (3): L3GD20, MPU6000, MPU9250
  • Compass (2): LS303D, MPU9250
  • Barometer (2): MS5611 X2
• Interfaces:
  • MAVLink UART (2)
  • GPS UART (2)
  • DEBUG UART (1)
  • RC IN (for PPM, SBUS, DSM/DSM2)
  • RSSI IN: PWM OR 3.3ADC
  • I2C (2)
  • CAN BUS (1)
  • ADC IN: 3.3V X1 , 6.6V X1
  • PWM OUT: 8 PWM IO + 4 IO
• Power System:
  • PM POWER IN: 4.5 ~ 5.5 V
  • USB POWER IN: 5.0 V +- 0.25v
• Weight and Dimensions:
  • Weight: 63g
  • Width: 68mm
  • Thickness: 17mm
  • Length: 44mm
• Other Characteristics:
  • Operating temperature: -20 ~ 60°C

Availability

The board can be purchased from:

• store.cuav.net (opens new window)
• leixun.aliexpress.com/store (opens new window)

Building Firmware

TIP

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-v3_default

Pinouts and Schematics

• Documentation/wiring guides (opens new window)

Serial Port Mapping

UART	Device	Port
UART1	/dev/ttyS0	IO debug
USART2	/dev/ttyS1	TELEM1 (flow control)
USART3	/dev/ttyS2	TELEM2 (flow control)
UART4
UART7	CONSOLE
UART8	SERIAL4