HMC5883L Triple Axis Magnetometer Breakout

Tiny breakout for Honeywell's HMC5883L 3-axis digital compass

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HMC5883L is a 3-axis digital compass from Honeywell. Communication with the HMC5883L is simple and all done through an I2C interface. There is no on-board regulator, so a regulated voltage of 2.16-3.6VDC should be supplied.


This breadboard-friendly board breaks out pins  to a 4-pin 0.1" pitch header. We've also put two 10k pull-up resistors on the I2C lines.


  • Simple I2C interface
  • 2.16-3.6VDC supply range
  • Low current draw
  • 5 milli-gauss resolution


  • 15.2x15.2 mm
  • 0.5 gram