[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.

it was time to build the rest of the metal detector. Look ma, no MCU! The sensor coil was made by salvaging the wire from an old fluorescent lamp ballast and winding it around the lid of a bucket ...

You have once bought a metal detector sugar-coated with glowing praise but then ending up with a shallow and second-rate one that can not seek any signals of the underground treasure? You are stuck in ...

Treasure hunting is a good game for family bond; Moreover, through it, you can teach your kids a lot of things, such as reading a map, types of metals, how a metal detector works and how to use it.

He is in charge of developing and carrying out testing procedures for a wide variety of home appliances and smart devices including robot vacuums, smoke/CO detectors and air conditioning units.