The OKY3063-1 is a digital 3 axis magnetometer sensor manufactured by OKYSTAR. It is powered by a 3 ~ 5V DC supply voltage, and has an I2C communication interface. It utilizes a HMC5883L IC chip, which provides accurate three-axis measurements of magnetic field strength, tilt and angle. It is designed for use in consumer electronics, smartphones, TVs, air conditioners, washing machines, and other home appliances. Its measurements can also be used in navigation, robotics, and medical applications. It is a small size board with four mounting holes.