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 ...

Maker “TechKiwiGadgets” built a detector with not one, but four sets of sensing coils, all controlled using an Arduino Mega. The device generates and senses a magnetic pulse from each set of ...

Microduino’s new generation of little stackable Arduino modules, mCookie, is both magnetic and Lego-compatible ... temperature and humidity, light sensor, passive infrared and infrared sensor ...

The Scratch Duino programming is based on the Arduino platform and comes supplied with a variety of magnetic mounted sensors ... under tough conditions: each sensor is protected by its individual ...

Joe Desbonnet combined an Arduino microcontroller with a magnetic coil to create what he calls the “Poor Man’s NFC”. The hack allows for a one-direction, low-bandwidth connection between an ...