Holybro pix32 (FMUv2)
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.
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.
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
Purchase
Accessories
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:
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
As a CC-BY-SA 3.0 licensed Open Hardware design, all schematics and design files are available.
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 |
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