This Arduino based little digital tachometer was originally created for counting the ... Otherwise I will restart my play with Hall-Effect sensors. Thoughts? The next step going forward will be to ...

[John Crombie] had a crack at building one using linear Hall effect sensors and magnets as ... [John] utilises the Arduino pro micro for its copious analog inputs and USB functionality.

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 ...