Matek RM3100 AP_Periph CAN Magnetometer

The Matek RM3100 CAN Magnetometer provides industrial-grade heading accuracy for large-scale ArduPilot builds, VTOLs, and heavy-lift platforms. Built around the premium PNI RM3100 geomagnetic sensor, it offers exceptional signal-to-noise performance and rejects magnetic interference far better than standard QMC5883L or IST8310 compasses. Running AP_Periph firmware, this node communicates over a robust CAN bus, allowing you to mount the compass far from high-current power systems without signal degradation or EMI on the data lines.

Key features

• Equipped with the high-resolution PNI RM3100 magnetic sensor for precise, drift-free heading hold
• Communicates via the robust DroneCAN protocol, maintaining signal integrity over long wire runs
• Native AP_Periph firmware ensures seamless plug-and-play integration with modern ArduPilot flight controllers
• Significantly higher immunity to motor and ESC magnetic interference compared to standard I2C compass modules

Specifications

• Sensor: PNI RM3100
• Interface: CAN bus (DroneCAN)
• Firmware: AP_Periph
• Supported Flight Stack: ArduPilot
• Model: CAN-L4-3100
• CAN node MCU: STM32L431 (256 KB flash)
• Input voltage: 4.5-5.5 V
• Current draw: 22 mA
• Extra ports: UART for MSP output, UART for an external GNSS module
• Operating temperature: -40 to 85 C
• Dimensions: 36 x 25 x 10 mm
• Weight: 6 g
• In the box: magnetometer, JST-GH 4-pin to 4-pin 20 cm silicone cable

Ideal for agriculture drones, cinelifters, and X-Class frames where reliable autonomous navigation is critical. Wire it directly to your flight controller's CAN port and configure the DroneCAN parameters in Mission Planner to complete the setup.