Product overview
The Holybro Pixhawk 6X (Rev 3) provides flight-control hardware built around the Pixhawk FMUv6X and Pixhawk Bus standards, with PX4 firmware pre-installed. Its architecture separates the IMU, FMU and base system through 100-pin and 50-pin connectors. The STM32H753 FMU combines a 480MHz Arm Cortex-M7 processor with 2MB flash and 1MB RAM, alongside an STM32F103 IO processor. Three IMUs and two barometers operate on separate buses, with isolated sensor power control, vibration isolation and onboard resistors for IMU temperature control.
Installation space depends on the selected baseboard. The controller module measures 38.8 x 31.8 x 14.6mm and weighs 23g; the Standard baseboard measures 52.4 x 103.4 x 16.7mm and weighs 51g, while the Mini measures 43.4 x 72.8 x 14.2 mm and weighs 26.5g. External integration includes an SPI5 sensor bus with two chip select lines and data-ready signals, plus Ethernet communication with mission computers through an integrated Microchip PHY. Operation requires the controller module and a baseboard together.
Standard and Mini sets combine the controller module, corresponding baseboard, PM02D HV power module and cable set, with M9N or M10 GPS included in the GPS-equipped configurations. The module-only configuration has no GPS. M10 GPS requires PX4 1.14 or newer, or ArduPilot 4.3 or newer. Electrical integration must accommodate the 6V maximum input, 4.75~5.25V USB supply range and 0~36V servo rail input. Telem1 has a 1.5A output current limiter; all other ports share a separate combined 1.5A limit.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and purpose | Holybro Pixhawk 6X (Rev 3) flight controller |
| Modular flight controller | Separated IMU, FMU, and Base system connected by a 100-pin & a 50-pin Pixhawk® Bus connector. |
| Sensor redundancy | 3x IMU sensors & 2x Barometer sensors on separate buses |
| FMU processor | STM32H753; 32 Bit Arm Cortex-M7; 480MHz; 2MB flash memory; 1MB RAM |
| IO processor | STM32F103; 32 Bit Arm Cortex-M3; 72MHz; 64KB SRAM |
| Accel/gyro option | ICM-20649 or BMI088Rev 3 or 4 on-board sensor configuration. |
| Additional accel/gyro | ICM-42688-PRev 3 or 4 on-board sensor configuration. |
| Additional accel/gyro | ICM-42670-PRev 3 or 4 on-board sensor configuration. |
| Magnetometer | BMM150Rev 3 or 4 on-board sensor configuration. |
| Barometers | 2x BMP388Rev 3 or 4 on-board sensor configuration. |
| Maximum input voltage | 6V |
| USB power input voltage | 4.75~5.25VUSB power input. |
| Servo rail input voltage | 0~36VServo rail input. |
| Telem1 output current limiter | 1.5ATelem1 output. |
| Other ports combined output current limiter | 1.5AAll ports other than Telem1, combined. |
| Module dimensions | 38.8 x 31.8 x 14.6mmFlight controller module. |
| Standard baseboard dimensions | 52.4 x 103.4 x 16.7mmStandard baseboard. |
| Mini baseboard dimensions | 43.4 x 72.8 x 14.2 mmMini baseboard. |
| Module weight | 23gFlight controller module. |
| Standard baseboard weight | 51gStandard baseboard. |
| Mini baseboard weight | 26.5gMini baseboard. |
| Standards and installed firmware | Based on the Pixhawk FMUv6X Open Standard and Pixhawk Bus Standard; PX4 firmware pre-installed. |
| External sensor and mission computer integration | SPI5 external sensor bus with two chip select lines and data-ready signals; integrated Microchip Ethernet PHY for mission computer communication. |
| Sensor isolation and temperature control | Isolated sensor domains with separate buses and power control; vibration isolation; IMU temperature control using onboard heating resistors. |
| Required operating assembly | Requires both an FC module and a baseboard; neither functions alone.FC module and baseboard assembled together. |
| M10 GPS firmware requirement | PX4 1.14 or newer; ArduPilot 4.3 or newer.M10 GPS configuration. |
| Supplied set equipment | Sets include the flight controller module, Standard or Mini base, PM02D HV power module and cable set. SKU 20243/20242/20245/20244 also include M9N/M10 GPS; the power module previously supplied was PM02D-LV.SKU 20172/20173 and SKU 20243/20242/20245/20244 set configurations. |
| Module-only GPS configuration | FC module only, without GPS.FC Module Only configuration. |
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