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 ...

Well, let us take a quick look at one of them… According to the datasheet, SS49E is a linear hall-effect sensor that is operated ... an output voltage less than 0.4V will be counted as a sensor ...

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

This sensor sits in line with the water line and contains a pinwheel sensor to measure how much water has moved through it. There is an integrated magnetic Hall-Effect sensor that ... suitable ...

A difference in current is created perpendicular to the electrical and magnetic field planes. A Hall-effect sensor requires an electrical circuit to operate, which needs power even when the sensor is ...