Arduino Compass with HMC5883L Magnetometer | Microcontroller Tutorials
DIY Arduino Digital Compass using Arduino Pro Mini and HMC5883L Magnetometer
HSCDTD008A Three Axis 3 Axis Magnetometer Compass Magnetic Sensor Module 3.3V 5V Micro Tesla LSB for Arduino Replace HMC5883L|Instrument Parts & Accessories| - AliExpress