We’re used to Hall effect devices as proximity sensors in mechanical systems ... devices provide a handy way to measure a static magnetic field. It’s something [mircemk] demonstrates, with ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

Recently, fires and other accidents caused by the use of non-original equipment manufacturer lithium-ion batteries (i.e., compatible batteries) have become a problem. However, these compatible ...

Data encoded on magnetic stripe or proximity cards is reader by the MRC310 and passed onto a controller. The controller then makes the decision and signals back to the reader to either capture or ...