Holybro Pixhawk 6C Flight Controller The Holybro Pixhawk 6C is an FMUv6C open-standard autopilot for multirotors, fixed-wing aircraft, VTOL platforms, rovers, boats, and other autonomous vehicles. Its STM32H743 processor, redundant temperature-controlled IMUs, vibration-isolated sensor design, 16 PWM outputs, dual CAN buses, and broad peripheral connectivity make it a practical controller for research, education, prototyping, and commercial vehicle development. This listing includes the Pixhawk 6C controller and cable set only. Choose either the lighter plastic case or the more robust aluminum case. A GPS, power module, telemetry radio, RC receiver, microSD card, and other peripherals are not included. Choose Your Case Option Controller Weight Best For Included Plastic 34.6 g Weight-sensitive builds and general development Pixhawk 6C in plastic case and cable set Aluminum 59.3 g Installations that benefit from a more rigid metal enclosure Pixhawk 6C in aluminum case and cable set The electronics, processor, sensors, interfaces, dimensions, and firmware support are the same for both options; the enclosure material and controller weight differ. Why Choose Pixhawk 6C? High-performance H7 processing: the STM32H743 Arm Cortex-M7 runs at up to 480 MHz with 2 MB flash and 1 MB RAM for demanding flight-control and autonomous-vehicle workloads. Redundant motion sensing: current Holybro specifications list ICM-42688-P and BMI088 accelerometer/gyroscope sensors, with onboard heating and mechanical vibration isolation. Dedicated I/O processor: an STM32F103 handles real-time I/O tasks separately from the main flight-management unit. Flexible vehicle I/O: 16 PWM outputs, three telemetry ports, two GPS ports, two CAN buses, dedicated RC inputs, S.BUS output, and dual analog power inputs support varied air and ground platforms. Open autopilot ecosystem: ships with PX4 firmware and supports both PX4 and ArduPilot releases documented for the FMUv6C target. Low-profile integrated design: processor, sensors, isolation, connectors, microSD logging slot, and USB-C are packaged in an 84.8 x 44 x 12.4 mm controller. Processor and Sensors FMU processor STM32H743, 32-bit Arm Cortex-M7, up to 480 MHz FMU memory 2 MB flash, 1 MB RAM I/O processor STM32F103, 32-bit Arm Cortex-M3, 72 MHz, 64 KB SRAM Accelerometer / gyroscope 1 ICM-42688-P Accelerometer / gyroscope 2 BMI088 Magnetometer IST8310 Barometer MS5611 Sensor treatment Integrated vibration isolation and temperature-controlled IMUs Holybro previously used the BMI055 in earlier production. Current Holybro technical specifications identify the BMI088 because the BMI055 reached end of production. Interfaces PWM outputs 16 total: 8 I/O PWM outputs and 8 FMU PWM outputs Telemetry 3 general-purpose serial ports; TELEM1 and TELEM2 include hardware flow-control lines GPS GPS1 full port with safety-switch functions; GPS2 basic UART/I2C port CAN 2 CAN bus ports I2C 1 dedicated I2C port with support for calibration EEPROM on compatible sensor modules RC input Dedicated Spektrum/DSM input plus PPM/S.BUS input and analog/PWM RSSI Servo bus output Dedicated S.BUS output Power inputs 2 analog power input ports for primary and redundant supply arrangements Debug Separate FMU and I/O debug ports Storage / USB microSD card slot for logs and USB-C connection Electrical and Mechanical Specifications Maximum controller input voltage 6 V USB power input 4.75-5.25 V Servo rail input 0-36 V TELEM1 output current limit 1.5 A All other ports combined output limit 1.5 A Operating temperature -40 to 85 degrees C Dimensions 84.8 x 44 x 12.4 mm Weight, plastic case 34.6 g Weight, aluminum case 59.3 g Power note: do not connect the flight controller directly to the vehicle battery. Use a compatible regulated Pixhawk power module or other correctly specified 5 V supply. The servo rail is a separate power domain; confirm the voltage requirements of every connected servo and peripheral. Typical System Connections Connection example only. The GPS modules, radio, receiver, camera, LiDAR, CAN hub, power module, PDB, ESCs, motors, servo, battery, and other peripherals shown above are not included. Firmware and Setup Pixhawk 6C ships with PX4 FMUv6C firmware pre-installed. Holybro documents support from PX4 1.13.1 and ArduPilot 4.2.3 onward. Use QGroundControl 4.2.4 or later, or a current supported build, when setting up PX4. If using an M10 GPS, Holybro specifies PX4 1.14 or ArduPilot 4.3 or later. Install the controller with its orientation arrow facing the vehicle's forward direction unless the firmware orientation is deliberately configured otherwise. After installation, verify board orientation, sensor health, RC input, motor assignment, failsafes, power monitoring, and compass calibration before operating the vehicle. Holybro documents switchable 3.3 V or 5 V PWM signal output on hardware revision RC09 and newer. Changing this setting requires opening the enclosure. Check the hardware revision and connected-device signal requirements before making any modification. Package Contents 1 x Holybro Pixhawk 6C flight controller in the selected plastic or aluminum case 1 x Pixhawk 6C cable set Not included: GPS, power module, telemetry radio, RC receiver, microSD card, battery, PDB, ESCs, motors, servos, and mounting hardware not shown as part of the selected package. Technical Resources Holybro Pixhawk 6C overview Technical specifications Connector pinouts Sample wiring diagram Dimensions Supported firmware Downloads and hardware resources FAQ Q: What is the difference between the Plastic and Aluminum options?A: They use the same Pixhawk 6C electronics and interfaces. The plastic version weighs 34.6 g, while the aluminum version weighs 59.3 g and provides a rigid metal enclosure. Q: Does this listing include a power module or GPS?A: No. Both current variants include only the selected Pixhawk 6C controller and its cable set. Q: Can I use PX4 or ArduPilot?A: Yes. Pixhawk 6C ships with PX4 installed, and Holybro documents support for PX4 1.13.1 or later and ArduPilot 4.2.3 or later. Peripheral-specific features may require newer releases. Q: Which vehicles can Pixhawk 6C control?A: Firmware support includes many multirotor, fixed-wing, VTOL, rover, boat, and other autonomous-vehicle configurations. Confirm that the selected firmware supports your exact frame and peripherals. Q: How many motor or servo outputs are available?A: There are 16 PWM outputs in total: eight I/O outputs and eight FMU outputs. Actual use depends on the selected vehicle firmware and output mapping. Q: Does it have redundant sensors?A: Yes. Current Holybro specifications list two accelerometer/gyroscope devices, the ICM-42688-P and BMI088, with vibration isolation and onboard temperature control. Q: Does the controller have Ethernet?A: No Ethernet interface is listed for Pixhawk 6C. If Ethernet or a modular autopilot-on-module architecture is required, compare the relevant Pixhawk 6X baseboard options. Q: Can the PWM signal voltage be changed to 5 V?A: Holybro documents hardware-switchable 3.3 V or 5 V PWM signaling for revision RC09 and newer. The enclosure must be opened, so verify the revision and peripheral requirements first. Q: Is a microSD card included?A: No. The controller has a microSD slot for flight logs, but the card is not listed as part of the package. Q: What should I verify before ordering?A: Choose the preferred case material, then confirm your power module, GPS connector, telemetry link, RC receiver, peripheral voltage, mounting space, firmware version, and required cable interfaces.
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