Pixhawk 6X (ICM-45686)

The Holybro Pixhawk 6X (ICM-45686) is a professional high-performance autopilot system designed for commercial UAVs, multirotors, fixed-wing aircraft, VTOL platforms, autonomous vehicles, robotics, research, and advanced aircraft development.

Based on the Pixhawk FMUv6X Open Standard, the Pixhawk 6X combines a powerful STM32H753 processor, triple redundant ICM-45686 inertial sensors, dual barometers, advanced vibration isolation, extensive connectivity, and a modular flight controller architecture.

This complete version includes the Pixhawk 6X flight controller module, the selected baseboard, a PM02D digital power module, and the required cable set.

Powerful STM32H753 Processor

The Pixhawk 6X is powered by an STM32H753 Arm Cortex-M7 processor operating at up to 480 MHz.

With 2 MB Flash memory and 1 MB RAM, it provides the processing capability required for advanced flight control algorithms, autonomous navigation, sensor fusion, complex vehicle models, telemetry systems, and professional UAV applications.

A dedicated STM32F103 I/O processor manages real-time input and output functions.

Triple ICM-45686 IMU Redundancy

The current Pixhawk 6X Rev8 integrates three ICM-45686 accelerometer and gyroscope sensors.

Each IMU operates within an isolated redundancy domain using separate buses and independent power control.

This triple-redundant architecture improves system reliability and provides robust motion sensing for demanding industrial and commercial UAV applications.

BalancedGyro™ Technology

The integrated ICM-45686 sensors feature BalancedGyro™ technology.

This advanced sensor architecture helps improve vibration rejection and measurement stability, providing reliable inertial data in demanding aircraft environments.

Dual Redundant Barometers

The Pixhawk 6X Rev8 integrates two independent barometric pressure sensors:

ICP20100 barometer
BMP388 barometer

The dual-barometer architecture improves altitude data reliability and provides additional sensor redundancy for autonomous flight operations.

Advanced Vibration Isolation

The Pixhawk 6X uses a newly developed vibration isolation system with a durable custom-formulated damping material.

The system is designed to filter high-frequency vibration and reduce sensor noise while maintaining accurate IMU measurements.

Its higher resonance-frequency design is optimized for professional industrial and commercial UAV platforms.

Temperature-Controlled IMU System

The onboard IMU board includes an integrated temperature-control system.

Maintaining the inertial sensors within an optimized operating temperature range helps improve sensor consistency and measurement reliability across changing environmental conditions.

Modular Flight Controller Architecture

The Pixhawk 6X uses a modular design with separate IMU, FMU, and baseboard systems.

The flight controller module connects to the selected baseboard through 100-pin and 50-pin Pixhawk Autopilot Bus connectors.

This architecture provides flexible integration and allows different baseboards to be selected depending on the aircraft requirements.

Ethernet Connectivity

The integrated 100 Mbps Ethernet interface enables high-speed communication with companion computers and mission computers.

This makes the Pixhawk 6X suitable for advanced autonomous systems, onboard processing, computer vision, AI applications, and professional UAV development.

16 PWM Outputs

The selected baseboard provides up to 16 PWM servo outputs for ESCs, motors, servos, actuators, and additional aircraft functions.

The PWM signal voltage is configured at 3.3 V by default and can be modified to 5 V through a baseboard hardware adjustment.

Dual CAN Bus Support

Two CAN buses support integration with DroneCAN-compatible devices.

Compatible peripherals may include GNSS modules, compasses, power modules, airspeed sensors, rangefinders, ESCs, and other professional UAV equipment.

Multiple GPS & Telemetry Interfaces

The Pixhawk 6X provides two GPS ports and multiple general-purpose serial interfaces.

The complete GPS port supports GNSS and safety switch functions, while the secondary GPS interface can be used for redundant or multi-GNSS configurations.

Four general-purpose serial ports support telemetry radios, datalinks, companion computers, remote identification systems, and additional peripherals.

Digital Power Monitoring

The included PM02D digital power module supplies regulated power to the autopilot while providing digital battery voltage and current measurements.

Digital power monitoring improves measurement accuracy and provides reliable battery data for professional UAV operations.

PX4 & ArduPilot Compatibility

The Pixhawk 6X ships with PX4 FMUv6X firmware and also supports ArduPilot.

The current ICM-45686 Rev8 version is supported by PX4 1.14.3 or later and ArduPilot 4.5.0 or later.

Technical Specifications

Product: Holybro Pixhawk 6X (ICM-45686) Complete Set
Application: Multirotors, fixed-wing UAVs, VTOL aircraft, autonomous vehicles, robotics, research, and commercial UAV platforms
Autopilot Standard: Pixhawk FMUv6X Open Standard
Pre-Installed Firmware: PX4 FMUv6X

FMU Processor: STM32H753
Architecture: 32-bit Arm Cortex-M7
Processor Frequency: Up to 480 MHz
Flash Memory: 2 MB
RAM: 1 MB

I/O Processor: STM32F103
Architecture: 32-bit Arm Cortex-M3
Processor Frequency: 72 MHz
I/O Processor RAM: 64 KB

IMU: 3× ICM-45686 accelerometer and gyroscope
IMU Technology: BalancedGyro™
IMU Redundancy: Triple redundant sensor architecture
IMU Isolation: Separate buses and independent power control
IMU Temperature Control: Integrated

Primary Barometer: ICP20100
Secondary Barometer: BMP388
Barometer Redundancy: Dual

Magnetometer: BMM150
Vibration Isolation: Advanced integrated vibration isolation system

PWM Outputs: Up to 16×
PWM Signal Voltage: 3.3 V default / 5 V through baseboard hardware modification

General-Purpose Serial Ports: 4×
GPS Ports: 2×
CAN Buses: 2×
I2C Ports: 1×
SPI Bus: 1×
Ethernet: 100 Mbps
Power Inputs: 2× with SMBus support
Analog Inputs: Available through baseboard

Maximum Autopilot Input Voltage: 6 V
USB Power Input: 4.75–5.25 V
Servo Rail Input: 0–36 V
Telem1 and GPS2 Combined Current Limit: 1.5 A
Combined Current Limit for Other Ports: 1.5 A

Operating Temperature: -25°C to +85°C

Flight Controller Module Dimensions: 38.8 × 31.8 × 16.8 mm
Flight Controller Module Weight: 31.3 g

Standard Aluminum Baseboard Dimensions: 52.4 × 102 × 16.7 mm
Standard Aluminum Baseboard Weight: 72.5 g

Mini Baseboard Dimensions: 43.4 × 72.8 × 14.2 mm
Mini Baseboard Weight: 26.5 g

Firmware Compatibility: PX4 1.14.3 or later / ArduPilot 4.5.0 or later

What’s Included

1× Pixhawk 6X ICM-45686 Flight Controller Module
1× Selected Pixhawk Baseboard
1× PM02D Digital Power Module
1× Complete Cable Set

This is the complete controller set and not the standalone “FC Module Only” version. GPS module, telemetry radio, and other external accessories are not included unless selected separately.