Triple-Axis Magnetometer (Compass) Board - HMC5883L
HMC5883L triple-axis magnetometer module for compass heading and magnetic-field sensing projects.
HMC5883L triple-axis magnetometer module for compass heading and magnetic-field sensing projects.
Power input; reverse-polarity protected
Common power and data ground
3.3V output from onboard regulator
I2C data through onboard level shifting/pullups
I2C clock through onboard level shifting/pullups
Data-ready output from HMC5883L
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VIN | 0.1 inch breakout header | Power | Power input; reverse-polarity protected | 3-5VDC |
| GND | 0.1 inch breakout header | Ground | Common power and data ground | 0V |
| 3Vo | 0.1 inch breakout header | Power | 3.3V output from onboard regulator | 3.3V, up to 100mA |
| SDA | 0.1 inch breakout header | I2C | I2C data through onboard level shifting/pullups | logic referenced to VIN |
| SCL | 0.1 inch breakout header | I2C | I2C clock through onboard level shifting/pullups | logic referenced to VIN |
| RDY | 0.1 inch breakout header | Unknown | Data-ready output from HMC5883L | logic output |
Power input; reverse-polarity protected
Common power and data ground
3.3V output from onboard regulator
I2C data through onboard level shifting/pullups
I2C clock through onboard level shifting/pullups
Data-ready output from HMC5883L
I2C · SPI · Analog · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VIN, GND, 3Vo, SDA, SCL. Schematik maps them to your board in the app.
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