Adafruit Triple-axis Magnetometer (Compass) Board - HMC5883L

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Product Code: 91944
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Adafruit Triple-axis Magnetometer (Compass) Board - HMC5883L info

A magnetometer can sense where the strongest magnetic force is coming from, generally used to detect magnetic north.

This compact sensor uses I2C to communicate and it’s very easy to use. It can be use with either 3 or 5V microcontrollers. Simply connect VCC to +3-5V and ground to ground. Then read data from the I2C clock and data pins.

Download library and connect the SCL pin to your Arduino's I2C clock pin, and SDA pin to your Arduino's I2C data pin and upload test example sketch to read out magnetic field data and heading (i.e. which way is north).

 

Adafruit Triple-axis Magnetometer (Compass) Board - HMC5883L - Technical Specifications

  • I2C interface. This board/chip uses I2C 7-bit addresses 0x3C
  • 1-2 degree heading accuracy
  • Integrated 12-bit ADC
  • 160Hz max data rate
  • Range of -8 to +8 Gauss

 

References

Adafruit Product Page: https://www.adafruit.com/products/1746

 

Documents

Adafruit Learn Link: https://learn.adafruit.com/adafruit-hmc5883l-breakout-triple-axis-magnetometer-compass-sensor/overview

Arduino Library: https://github.com/adafruit/Fritzing-Library

 

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