The Holybro DroneCAN RM3100 compass module is a professional-grade 3-axis magnetometer that delivers laboratory-level magnetic field measurements in real-world flight. Built on PNI’s proven magneto-inductive technology, it offers 10 nT resolution and ultra-low magnetic hysteresis, giving pilots and engineers the heading accuracy they need for precise waypoint navigation. A sealed aluminum housing shields the sensor from magnetic disturbance caused by airframe metal or a nearby brushless motor, while a CAN transceiver and locking JST-GH1.25 connector simplify integration.
Because the unit speaks native DroneCAN – not legacy UART – it frees up valuable serial ports on the flight controller and allows long, daisy-chained runs without signal loss. Whether you fly an autonomous mapping platform or a high-performance RC drone, this compass gives you rock-solid orientation data that survives takeoffs, hard turns, and temperature swings.
Key benefits
• Boost navigation fidelity with high-resolution, low-noise magnetometer output
• Protect guidance from electromagnetic drift using hardened housing and CAN isolation
• Streamline installs via single-bus DroneCAN output protocol and minimal wiring
• Save setup time – factory-calibrated, with straightforward on-board calibration commands
• Maintain reliability through wide operating-temperature range and sealed enclosure
Compatibility & use-cases
Works with ArduPilot and PX4 boards that enable UAVCAN_ENABLE. Ideal for survey drones, autonomous rovers, and FPV racing builds that demand uncompromised compass data.
What’s in the box
• 1 × Holybro DroneCAN RM3100 compass module
• 1 × 20 cm CAN cable with JST-GH1.25 connectors
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