Hall effect sensors output a voltage that varies in proportion to the presence of a magnetic field, which is typically provided by a nearby magnet.

Posted in Arduino Hacks, Peripherals Hacks Tagged arduino, f'n magnets, hall effect sensor, mouse, space mouse ...

Linear Hall-Effect Sensor According to the datasheet, SS49E is a linear hall-effect sensor that is operated by the magnetic field from a permanent magnet or an electromagnet. The linear sourcing ...