It’s something [mircemk] demonstrates, with an Arduino-powered magnetic field strength meter that uses a UGN 3503U Hall effect device. The circuit is extremely simple, comprising the sensor ...
Unlike a Raspberry Pi, you won't find anything resembling an operating system here; instead, the Arduino uses simplified ...
Above the fixed sensor plate is a moveable magnet plate centred by a set of ... [John] utilises the Arduino pro micro for its copious analog inputs and USB functionality. A nice feature of this ...