Holybro Pixhawk 6X Rev8 Flight Controller Module (ICM-45686)

The flight controller module from Holybro's Pixhawk 6X, in its current Rev8 form with three ICM-45686 IMUs. This is the FMU module only: it plugs into a Pixhawk 6X baseboard, which carries the power input and peripheral ports. Choose it to build a 6X system around a baseboard you already have, or to replace or upgrade the module in an existing airframe running PX4 or ArduPilot.

Key features

• STM32H753 FMU (Arm Cortex-M7, 480 MHz, 2 MB flash, 1 MB RAM) plus an STM32F103 IO processor, to the Pixhawk FMUv6X standard

• Triple-redundant ICM-45686 IMUs with BalancedGyro technology, in isolated sensor domains with separate buses and power control

• Two barometers and a BMM150 magnetometer onboard

• Vibration isolation uses the custom damping material from the Pixhawk 6X Pro instead of foam, with a higher resonance frequency suited to industrial and commercial drones

• Heated, temperature-controlled IMUs for consistent readings

• 100-pin and 50-pin Pixhawk Autopilot Bus connectors; the FMUv6X design adds 100 Mbps Ethernet for a mission computer

Specifications

• FMU processor: STM32H753, 480 MHz

• IO processor: STM32F103, 72 MHz

• IMUs: 3 × ICM-45686

• Barometers: ICP20100 + BMP388/580/581

• Magnetometer: BMM150

• Max input voltage: 6 V

• USB power input: 4.75–5.25 V

• Servo rail input: 0–36 V

• PWM signal level: 3.3 V default, 5 V by changing an onboard resistor

• Operating temperature: −25 to 85 °C

• Module dimensions: 38.8 × 31.8 × 14.6 mm

• Module weight: 23 g

Earlier 6X revisions (Rev3/4) used BMI088/ICM-20649, ICM-42688-P and ICM-42670-P IMUs, so recalibrate the accelerometer and compass after swapping in this module. Power the 6X through a digital power module such as the PM02D — analog modules like the PM07 are not compatible.