The circuit is extremely simple, comprising the sensor, an Arduino Nano, and an OLED display. This device is handy because its voltage output has a known relationship to the gauss level the sensor ...
Powered by an ATMega328p pulled out of an Arduino Nano, if offers the same software ... buttons on the PCB as well as an 128×32 I2C OLED display. In a future version, [Electronoobs] says ...
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