# Holybro Pixhawk 6C

> Open-source flight controller based on the Pixhawk FMUv6C standard. Features STM32H743 processor, dual redundant IMUs, barometer, and magnetometer. Runs ArduPilot or PX4 autopilot firmware.

## Quick Facts

- **Brand:** Holybro
- **Board Type:** flight-controller
- **Price:** ~$140.99
- **Product Readiness:** developer
- **CPU:** STM32H743
- **CPU Architecture:** ARM Cortex-M7
- **CPU Cores:** 1
- **RAM:** 1MB
- **Flash:** 2MB
- **USB:** USB-C
- **Power:** 4.75-6V
- **Operating Voltage:** 3.3V
- **SD Card:** microSD

## Open Source

- **Firmware:** Yes
- **Schematics:** Yes
- **PCB Layout:** Yes

## Compatible Firmware

ardupilot, px4

## Use Cases

- drone
- autonomous-vehicle
- robotics
- uav
- flight-controller

## Components

- **STM32H743** (MCU): 32-bit ARM Cortex-M7 @ 480MHz, 2MB flash, 1MB SRAM — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.st.com%2Fresource%2Fen%2Fdatasheet%2Fstm32h743vi.pdf&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- **STM32F103** (MCU): IO co-processor, ARM Cortex-M3 @ 72MHz, 64KB SRAM — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.st.com%2Fresource%2Fen%2Fdatasheet%2Fstm32f103c8.pdf&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- **ICM-42688-P** (IMU): 6-axis accelerometer and gyroscope — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Finvensense.tdk.com%2Fwp-content%2Fuploads%2F2020%2F04%2Fds-000347_icm-42688-p-datasheet.pdf&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- **BMI088** (IMU): 6-axis accelerometer and gyroscope (redundant) — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.bosch-sensortec.com%2Fmedia%2Fboschsensortec%2Fdownloads%2Fdatasheets%2Fbst-bmi088-ds001.pdf&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- **IST8310** (Magnetometer): 3-axis digital magnetometer for compass heading — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fintofpv.com%2Fattachment.php%3Faid%3D8104&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- **MS5611** (Barometer): High-resolution barometric pressure sensor for altitude estimation — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.te.com%2Fcommerce%2FDocumentDelivery%2FDDEController%3FAction%3Dshowdoc%26DocId%3DData%2BSheet%257FMS5611-01BA03%257FB3%257Fpdf%257FEnglish%257FENG_DS_MS5611-01BA03_B3.pdf&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)

## Protocols

- **UART**
- **I2C**
- **SPI**
- **CAN**
- **PWM**

## Description

# 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

## Where to Buy

- [Holybro Official](https://openhardware.directory/r?to=https%3A%2F%2Fholybro.com%2Fproducts%2Fpixhawk-6c&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export) — $140.99
- [OpenELab](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fpixhawk-6c&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export) — €245.00

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fholybro.com%2Fproducts%2Fpixhawk-6c&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FPX4%2FPX4-Autopilot&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)
- [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.px4.io%2Fmain%2Fen%2Fflight_controller%2Fpixhawk6c.html&ref=openhardware.directory&product=holybro-pixhawk-6c&source=md-export)

## Tags

`pixhawk`, `flight-controller`, `drone`, `autopilot`, `fmuv6c`, `holybro`, `px4`, `ardupilot`, `open-source`

## Images

![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/69bc8c355612.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/104473c96217.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/2187d2c73098.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/ed51256d0cb8.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/5fd9600a966e.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/35f25a895799.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/3c9c39f81510.jpg)
![Holybro Pixhawk 6C](https://nbg1.your-objectstorage.com/openhardware-directory/entities/holybro-pixhawk-6c/338f15c523ef.jpg)

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