Holybro Pixhawk 6C

Holybro Pixhawk 6C

The Pixhawk 6C is an open-source flight controller designed and manufactured by Holybro, based on the Pixhawk FMUv6C open standard. It features a powerful STM32H743 main processor running at 480MHz with dual redundant IMUs for reliable flight performance.

Key Features

• Dual Redundant IMUs: ICM-42688-P and BMI088 accelerometer/gyroscope sensors for reliable attitude estimation
• High-Performance MCU: STM32H743 Cortex-M7 at 480MHz with 2MB flash and 1MB SRAM
• Dedicated IO Processor: STM32F103 Cortex-M3 handles failsafe I/O operations
• 16 PWM Servo Outputs: 8 from IO processor, 8 from FMU
• 2 CAN Buses: With individual silent controls for DroneCAN peripherals
• Open Source: Full schematics, PCB layout, and firmware available

Sensors

• IMU 1: ICM-42688-P (accelerometer + gyroscope)
• IMU 2: BMI088 (accelerometer + gyroscope)
• Magnetometer: IST8310
• Barometer: MS5611

Interfaces

• 3 general-purpose UARTs + 2 GPS serial ports
• 2 CAN buses with individual silent controls
• 1 I2C bus with dedicated calibration EEPROM
• 16 PWM servo outputs (8 IO + 8 FMU)
• Dedicated R/C input (Spektrum/DSM, S.BUS, CPPM)
• 2 analog power input ports
• USB-C connector
• MicroSD card slot for logging

Power

• Input voltage: up to 6V (via power module)
• USB power: 4.75-5.25V
• Servo rail: 0-36V
• Operating temperature: -40 to 85°C

Firmware

Compatible with both major open-source autopilot stacks:

• PX4: Full support as a reference platform
• ArduPilot: Full support for Copter, Plane, and Rover