A magnetometer measures strength and direction of a magnetic field. It can sense where is the earth's magnetic north and can be used as a compass application. This kind of sensor is commonly found in many digital consumer device such as mobile phones, tablets, gaming consoles, health/fitness gadgets, navigation devices and recently in laptops as well.
This is a 3-axis digital compass breakout board based on HMC5883L chip from Honeywell. Communication to this module can be done using I2C protocol, only two data lines is required. Operating voltage is between 3V to 5V.
The board has 2 mounting holes. Standard 5-pin 2.54 mm header is included, but not soldered.
