The GY-273 module is based on the HMC5883L IC for low-field magnetic sensing with a digital interface for applications such as low cost compassing and magnetometry. Specification: HMC5883L module (three-axis magnetic field module) Model: GY-273 Using the chip: HMC5883L Module Power supply : 3-5v Communication: IIC communication protocol Measuring range: ± 1.3-8 gauss Size: 13.9 Read more about GY-273 HMC5883L Module Triple Axis Compass Magnetometer Sensor 3V-5V[…]