MicoAir MG-903 (M9-5883) Small Size GPS GNSS Module with IST8310 Compass — Replaces M9N-5883

📘 Documentation & Guides

• GPS Module — Full User Manual — specs, connector pinout, wiring and the per-firmware compass orientation values
• Drone GPS & Compass Guide — mounting, wiring, calibration and the parameters that connect the two
• External Compass Orientation — the orientation value this module needs on ArduPilot, PX4, INAV and Betaflight
• u-blox GPS Baud Rate — why the module and flight controller disagree, and how to fix it permanently

Setting it up with an AI assistant? Read our AI setup guide first. It shows you how to point ChatGPT, Claude or Gemini at the official manual for this product, so the answers come from the real pinout and parameter names instead of guesses.

Description

MG-903 module uses multi-constellation GNSS chip powered by u-blox M9140.


MG-903 supports concurrent reception of four GNSS (GPS, GLONASS, Galileo, and BeiDou). The high number of visible satellites enables the receiver to select the best signals. This maximizes the position availability, in particular under challenging conditions such as in deep urban canyons. u-blox Super-S (Super-Signal) technology offers great RF sensitivity and can improve the dynamic position accuracy in non-line-of-sight scenarios.

The high-gain 18 x 18 x 4 mm antenna from CIROCOMM provides the best balance between performance and small size. The omnidirectional antenna radiation pattern increases flexibility for device installation.

GNSS u-blox M9140 (GPS, GLONASS, Galileo and BeiDou)

Magnetic Compass IST8310

Patch antenna 18*18*4mm

Input voltage range: 4~6V (5V pad/pin)

Power consumption: 80mA

UART baudrate: 115200 default

Operating Temperatures: -20~80 °C

UART(TX, RX) interface for M9140

I2C(SDA, SCL) interface for Compass IST8310

SH-1.0 6P connector ,1.00mm pitch

GNSS PPS LED, Blue. (Solid ON after powering on, blinking(1Hz) when GNSS get 3D fix)

Navigation update rate: up to 25Hz (4 concurrent constellations)

Protocol: UBX NAV-PVT (factory default) or NMEA

20mm*20mm*8mm 7g

Technical Support

If you encounter any usage issues or require technical support after receiving your product, please feel free to contact us. You can reach us via email at support@robofusion.net

Our technical support team will respond to your inquiry within 24 hours on business days (excluding public holidays). We promise to provide you with professional solutions to ensure you make the most out of our products.

We also welcome any feedback or suggestions you may have regarding our products. Your input is invaluable to us and will help us continually improve and enhance our products and services.