If you fancy building your very own DIY magnetometer you may be interested in a Arduino project published to the Instructables website by maker Markus Opitz. His magnetometer costs less than €50 ...

The build uses a HMC5883L magnetometer. While this can detect ... The output of the device is read by an Arduino Nano, which is hooked up to a string of WS2812B LEDs and a small OLED display.

and a magnetometer. Each sensor can be communicated with using I2C from analog pins 4 and 5 on the Arduino Uno. We powered the sensor stick using the 5 volts out available on the Arduino Uno.

The main change – the control electronics were replaced by an Arduino Pro Mini (16Mhz model ... Among other details, an HMC5883L (magnetometer) and MPU6050 (accelerometer / gyroscope) are ...

Exploring the Arduino Nano 33 BLE Rev2’s Advanced Features ... This sensor is a fusion of an accelerometer, gyroscope, and magnetometer, which together enable the board to detect orientation ...