Holybro pix32 (FMUv2)
:::warning PX4 does not manufacture this (or any) autopilot. Contact the manufacturer for hardware support or compliance issues. :::
The Holybro® pix32 autopilot (also known as "Pixhawk 2", and formerly as HKPilot32) is based on the Pixhawk®-project FMUv2 open hardware design. This board is based on hardware version Pixhawk 2.4.6. It runs the PX4 flight stack on the NuttX OS.
As a CC-BY-SA 3.0 licensed Open Hardware design, schematics and design files should be available here.
:::tip The Holybro pix32 is software compatible with the 3DR Pixhawk 1. It is not connector compatible, but is otherwise physically very similar to the 3DR Pixhawk or mRo Pixhawk. :::
:::note This flight controller is manufacturer supported. :::
Key Features
Main System-on-Chip: STM32F427
CPU: 32-bit STM32F427 Cortex® M4 core with FPU
RAM: 168 MHz/256 KB
Flash: 2 MB
Failsafe System-on-Chip: STM32F103
Sensors:
ST Micro L3GD20 3-axis 16-bit gyroscope
ST Micro LSM303D 3-axis 14-bit accelerometer / magnetometer
Invensense® MPU 6000 3-axis accelerometer/gyroscope
MEAS MS5611 barometer
Dimensions/Weight
Size: 81x44x15mm
Weight: 33.1g
GPS: u-blox® super precision Neo-7M with compass
Input Voltage: 2
10s (7.437V)
Connectivity
1x I2C
2x CAN
3.3 and 6.6V ADC inputs
5x UART (serial ports), one high-power capable, 2x with HW flow control
Spektrum DSM / DSM2 / DSM-X® Satellite compatible input up to DX8 (DX9 and above not supported)
Futaba® S.BUS compatible input and output
PPM sum signal
RSSI (PWM or voltage) input
SPI
External microUSB port
Molex PicoBlade connectors
Where to Buy
Accessories
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:
Debug Port
See 3DR Pixhawk 1 > Debug Ports.
Pinouts and Schematics
The board is based on the Pixhawk project FMUv2 open hardware design.
FMUv2 + IOv2 schematic -- Schematic and layout
:::note As a CC-BY-SA 3.0 licensed Open Hardware design, all schematics and design files are available. :::
Serial Port Mapping
UART1
/dev/ttyS0
IO debug
USART2
/dev/ttyS1
TELEM1 (flow control)
USART3
/dev/ttyS2
TELEM2 (flow control)
UART4
UART7
CONSOLE
UART8
SERIAL4
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