Looking for a light project to teach young hackers some very basic electronics? Here’s a quick and easy weekend project, a simple metal detector ... one based on an Arduino.

An Arduino is a microcontroller — a single board designed to control something and perform a specific task. Unlike a ...

If you want to get rich by hunting with a metal detector, you might want to consider how much you invested in the hardware to start with. Finding a tin can with a $200 detector might not make ...