Pixhawk 4 - Advanced Flight Controller

Description of product


Pixhawk ® 4 is the latest update to the successful family of Pixhawk flight controllers. It is designed and developed in collaboration with Holybro and the PX4 team, optimized to run the full Dronecode stack and comes preinstalled with the latest PX4 firmware (v1.7).

It features the currently most advanced processor technology from ST Microelectronics ® , sensor technology from Bosch ® , InvenSense ® and a NuttX real-time operating system, delivering incredible performance, flexibility, and reliability for controlling any autonomous vehicle.

The Pixwhawk 4’s microcontroller now has a 2 MB flash memory and 512KB RAM. With the increased power and RAM resources, developers can be more productive and efficient with their development work. More complex algorithms and models can be implemented on the autopilot.

High-performance, low-noise IMUs on board are designed for stabilization applications. Data-ready signals from all sensors are routed to separate interrupt and timer capture pins on the autopilot,permitting precise time-stamping of sensor data. Newly designed vibration isolations enables more accurate readings, allowing vehicles to reach better overall flight performances.

The two external SPI buses and six associated chip select lines allow to add additional sensors and SPI-interfaced payload. There are total of four I2C buses, two dedicated for external use and two grouped with serial ports for GPS/Compass modules.

The Pixhawk 4 autopilot development kit is perfect for developers at corporate research labs,startups, and for academics (research, professors, students).


- A new and small form factor

- More computing power and 2X the RAM than previous versions

- New sensors with higher temperature stability

- Integrated vibrations isolation

- Increased ease-of-use: pre-installed with most recent PX4 (v1.7)

- Additional ports for better integration and expansion

Technical Details

Dimensions84mm x 44mm x 12mm
WeightG.W 15.8g    
Technical specifications
Main FMU ProcessorSTM32F765 (32 Bit Arm® Cortex®-M7, 216MHz, 2MB memory, 512KB RAM)
IO ProcessorSTM32F100(32 Bit Arm® Cortex®-M3, 24MHz, 8KB SRAM)
On-board sensorsAccel/Gyro: ICM-20689, Accel/Gyro: BMI055, Mag: IST8310, Barometer: MS5611
GPSublox Neo-M8N GPS/GLONASS receiver; integrated magnetometer IST8310
 8-16 PWM servo outputs (8 from IO, 8 from FMU)
 3 dedicated PWM/Capture inputs on FMU
 Dedicated R/C input for CPPM
 Dedicated R/C input for Spektrum / DSM and S.Bus with analog / PWM RSSI input
 Dedicated S.Bus servo output
 5 general purpose serial ports(2 with full flow control, 1 with separate 1.5A current limit)
 3 I2C ports
 1 internal high speed SPI sensor bus with 4 chip selects and 6 DRDYs
 1 internal low noise SPI bus dedicated for Barometer with 2 chip selects, no DRDYs
 1 internal SPI bus dedicated for FRAM, Supports dedicated SPI calibration EEPROM located on sensor module
 1 external SPI buses
 Up to 2 CANBuses for dual CAN with serial ESC
 Analog inputs for voltage / current of 2 batteries
 2 additional analog inputs
Electrical data,Voltage Ratings
Power module output4.9~5.5V
Max input voltage6V
Max current sensing120A
USB Power Input4.75~5.25V
Servo Rail Input0~36V
Environmental data, quality & reliability
Operating temp-40~85°C
Storage temp-40~85°C
CertificatesCE, FCC,RoHS compliant (lead-free)