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FlyingRC RM3100 SPI Compass Module
A remote-mountable three-axis compass module for heading measurement in aircraft, robotics, and navigation projects.
Key features
- Uses the PNI RM3100 magnetic sensor set and MagI2C controller.
- Provides SPI clock, MISO, MOSI, chip-select, and data-ready signals.
- Full attitude calibration is required after installation.
Setup / wiring notes
- Use a 3.3 V supply and follow the 8-pin SPI wiring table.
- Mount the module away from power wiring, motors, and other magnetic interference sources.
Check before use
- Do not power the module from 5 V.
Key specs
- PNI RM3100 three-axis geomagnetic sensor
- 12.70 x 12.70 x 7.42 mm; 0.53 g
- 3.3 V recommended supply; operating range 2.0-3.6 V
- 8-pin SPI: VCC, dual GND, DRDY, CLK, MISO, MOSI, SSN
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Reference files
Wiring / dimensions / specs
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