[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.

This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are ... would have been to use a reflectance sensor which allows to for the transmitter ...

Likely applications are button designs and proximity sensing. The kit’s board also includes ... The kit works as a stand-alone unit and as an Arduino-compatible shield. It can be used to add a ...