Mateksys GNSS M9N-5883
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Mateksys GNSS M9N-5883
Specifications
M9N-5883 uses multi-constellation GNSS powered by NEO-M9N , NEO-M9N is a concurrent GNSS receiver which can receive and track multiple GNSS systems. Owing to the multi-band RF front-end architecture all four major GNSS constellations, GPS,Galileo, GLONASS and BeiDou can be received concurrently.
Specifications
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GNSS NEO-M9N (GPS, GLONASS, Galileo and BeiDou)
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Magnetic Compass QMC5883L
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Patch antenna 25*25*4mm
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Input voltage range: 4~5.5V (5V pad/pin)
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Power consumption: 50mA
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UART baudrate: 38400 default
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Operating Temperatures: -20~80 °C
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UART(TX, RX) interface for GNSS NEO-M9N
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I2C(DA, CL) interface for Compass QMC5883L
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JST-GH-6P connector
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3.3V Power LED, Red
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GNSS PPS LED, Green, blinking(1Hz) when GNSS has 3D fixed
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32mm*32mm*10mm
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14.5g
Includes
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1x M9N-5883
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1x JST-GH-6P to JST-GH-6P 20cm silicon wire
Wiring and settings
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M9N-5883 5V to Flight controller 4~5.5V
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M9N-5883 RX to Flight controller UART_TX
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M9N-5883 TX to Flight controller UART_RX
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M9N-5883 CL to Flight controller I2C_SCL
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M9N-5883 DA to Flight controller I2C_SDA
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M9N-5883 G to Flight controller GND
Tips and Notes
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Compass Alignment(flat mounting): Tilting the magnetometer is strongly discouraged !
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INAV/BetaFLight: compass Arrow forward, set CW 270° Flip when flight controller arrow is facing forward.
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INAV/BetaFLight: compass Arrow backward, set CW 90° Flip when flight controller arrow is facing forward.
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Ardupilot/Mission Planner: Rotation None.
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Make sure to have compass/magnetometer 10cm away from power lines/ESC/motors/iron based material
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INAV 5.0.0, Betaflight 4.3.0, ArduPilot 4.3 or newer is required.
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NEO-M9N, MAX-M10S, SAM-M10Q series all don’t have dataflash built in. once GNSS is powered off and the supercapacitor run out. the settings will back to default.
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UBX protocol is bidirectional. Flight controller firmware can change settings on GPS via UBX protocol. You don’t need to set GNSS module parameters in u-center.
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Start with GNSS FW3.01, timepulse is aligned with UTC time and that time is set valid only after leap second is downloaded. That could take up to 12.5 min. Probably PPS LED will not blink immediately after GPS has 3D fixed.
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The M9N-5883 provides the ability to reset the receiver. Bridging “RST” pad to Ground for at least 100 ms will trigger a cold start. RESET will delete all information and trigger a cold start. It should only be used as a recovery option. If you are sure wiring and setup are all right. but flight controller can’t detect the GNSS module(grey GPS icon), try doing reset.
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The scratches on ceramic antenna are the result of tuning the antenna.
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Troubleshoot GPS related issues: https://www.mateksys.com/?p=5712#tab-id-6
Effective Date: March 27, 2025
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