Matek - M9N-G4-3100 DroneCAN GNSS + Compass Module
by Matek Systems

The Matek M9N-G4-3100 is a high-precision GNSS and Compass module designed for advanced drone and UAV navigation. Based on ArduPilot's AP_Periph firmware, this peripheral offers exceptional versatility and compatibility through both CAN/DroneCAN and UART/MSP interfaces. It utilizes a u-blox M9N series GNSS receiver, capable of concurrently tracking all four major satellite constellations: GPS, Galileo, GLONASS, and BeiDou. This multi-constellation support ensures superior positioning accuracy and signal reliability, making it ideal for a variety of flight conditions. The module also integrates an industrial-grade PNI RM3100 magnetic compass, providing high-resolution heading data with low power consumption, no hysteresis, and a high sampling rate. With its compact and lightweight design, the M9N-G4-3100 is perfect for seamless integration into weight-sensitive builds, supporting both professional and enthusiast-level drone projects. It is compatible with ArduPilot (since 4.1.x) and INAV (since 2.6).

Specifications

• GNSS: M9N series (GPS, GLONASS, Galileo, BeiDou)
• Magnetic Compass: PNI RM3100
• Antenna: 25x25x4mm GNSS Patch Antenna
• MCU: STMG474CE, 170MHz
• Interfaces: CAN (DroneCAN), UART2 (GNSS), UART3 (MSP), USB (for firmware updates)
• Input Voltage: 4V-6V
• Power Consumption: ~100mA
• Operating Temperature: -20°C to 80°C
• Dimensions: 36mm x 36mm x 12mm
• Weight: 16g