HMC5843 Triple Axis Magnetometer


This is a breakout board for Honeywell’s HMC5843, a 3-axis digital compass. Communication with the HMC5843 is simple and all done through an I2C interface. There is no on-board regulator, so a regulated voltage of 2.5-3.3VDC should be supplied. The breakout board includes the HMC5843 sensor and all filtering capacitors as shown. The power and 2-wire interface pins are all broken out to a 0.1" pitch header.

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  • Simple I2C interface
  • 2.5 to 3.3VDC supply range
  • Low current draw
  • 7 milli-gauss resolution


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