The Holybro DroneCAN M9N GPS (also marketed as the DroneCAN M9N GPS Module) is a next-generation navigation hub that blends a high-precision UBLOX GNSS Receiver with an onboard BMM150 compass into a single, rugged CAN-enabled package. By adopting the DroneCAN protocol (an open CAN protocol for UAVs), this module eliminates fragile serial connections, lowers power consumption, and resists electromagnetic interference. Multiple DroneCAN devices—including this DroneCAN GPS and other sensors—can share one bus via a CAN splitter board, freeing every UART on your flight controller.
At its core sits the Ublox NEO M9N chipset (upgradeable from earlier Ublox NEO M8N / UBLOX M8N variants and future-proofed toward ublox M10). This multi-constellation GNSS Receiver Ublox NEO M9N locks satellites fast and holds them tight, providing rock-solid positioning to ArduPilot and PX4 through Mission Planner or QGroundControl. A low-noise LNA MAX2659ELT+ RF amplifier feeds a tuned ceramic patch antenna, while a rechargeable Farah capacitor speeds hot starts even after power cycles.
Key Features — Why Pilots Upgrade to the Holybro DroneCAN M9N GPS
| Feature | Keyword Highlights | Benefit |
|---|---|---|
| Advanced GNSS Technology | Ublox NEO M9N, UBLOX, GNSS Receiver | Multi-constellation (GPS, Galileo, GLONASS, BeiDou) for sub-meter accuracy |
| Powerful STM32G4 Processor | DroneCAN MCU Firmware | Handles CAN frames with headroom for future DroneCAN FW upgrades |
| DroneCAN Protocol | CAN protocol, DroneCAN GPS, DroneCAN M9N GPS Module | Noise-immune bus; no UART bandwidth limits; one cable links many nodes |
| Dual Compass Support | BMM150 compass, Compass, IST8310 compass (optional) | Reliable heading with automatic fail-over and magnetic outlier rejection |
| Ceramic Patch Antenna | patch antenna, antenna, ceramic patch antenna | High gain with minimal weight; perfect for tight frames |
| Clear LED Indicator | LED indicator | Tri-color status ring shows GNSS fix, CAN heartbeat, and compass health |
| Serial Port Efficiency | serial connection (eliminated) | Frees UARTs for telemetry, video, or additional sensors |
| CAN Bus Compatibility | CAN splitter board, CAN protocol | Daisy-chain ESCs, AirSpeed sensors, and this Holybro DroneCAN M9N GPS on one 4-wire harness |
Detailed Highlights
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DroneCAN Protocol Advantage
The switch from UART to DroneCAN protocol means each DroneCAN GPS node shares the same twisted-pair with ESCs and IMUs. Using a CAN splitter board, you can run power, data, and backups to every accessory while keeping EMI low and wiring neat. -
UBLOX Technology Inside
The board hosts the proven Ublox M9N GNSS Receiver—a leap over the earlier Ublox NEO M8N / UBLOX M8N. If you need even higher precision later, firmware hooks already anticipate ublox M10 upgrades. -
Compass Redundancy
A primary BMM150 compass is soldered on-board, and pads support an auxiliary IST8310 compass or the pro-grade RM3100 High Precision Magnetic Compass. Dual-sensor fusion inside ArduPilot filters out magnetic outliers for safer automated flight. -
Optimized Power Consumption
The low-noise 3.3 V regulator and efficient LNA MAX2659ELT+ keep power consumption minimal—crucial for endurance builds. -
Mission Planner Integration
In Mission Planner, select “DroneCAN GPS” and the installation process auto-discovers baud, node ID, and LED indicator status—no manual parameter hunt.
Package Includes
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1 × Holybro DroneCAN M9N GPS Module (with ceramic patch antenna, BMM150 compass, tri-color LED indicator, and STM32G4 MCU)
Upgrade today to the Holybro DroneCAN M9N GPS and experience the reliability of DroneCAN, the accuracy of the Ublox NEO M9N GNSS Receiver, and the clarity of an on-board BMM150 compass—all in one compact, CAN-ready module built for next-level autonomy.
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