3-Axis Digital Compass Module based on HMC5883L Chip

3-Axis Digital Compass Module based on HMC5883L Chip


3-Axis Digital Compass Module based on HMC5883L Chip: Integrated 3-Axis Magnetoresistive Sensors, 12-Bit Resolution, Low Voltage Operations, I2C Digital Interface.

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This Digital Compass Module allows you integrate a Compass functionality in your next project. It is built on the strengths of the HMC5883L Integrated Circuit by . It is highly accurate and is capable of producing compass heading readings in all axis. A microcontroller is required to use this device. The I2C digital Interface allows for easy access to the chip’s compass data through a microcontroller. Most microcontrollers have a hardware I2C interface so this shouldn’t be a problem. Although Bit Banging (software ) I2C is also possible in cases where your microcontroller of choice does not have an integrated the I2C hardware.


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  • 3-Axis Magnetoresistive Sensors and ASIC in a 3.0×3.0x0.9mm LCC Surface Mount Package
  • 12-Bit ADC Coupled with Low Noise AMR Sensors Achieves 2 milli-gauss Field Resolution in ±8 Gauss Fields
  • Built-In Self Test
  • Low Voltage Operations (2.16 to 3.6V) and Low Power Consumption (100 μA)
  • I 2C Digital Interface
  • Wide Magnetic Field Range (+/-8 Oe)
  • Fast 160 Hz Maximum Output Rate


  • Digital Resolution: 12Bits, 4.35 milli-gauss (Max.)
  • Field Range: -8 to +8 Gauss
  • Average Current Consumption: 100uA
  • Turn-On time: 200uS
  • Power supply :2.5V – 3.3V
  • Size: 1.8 x 1.3 cm
  • Net weight:17 g