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! We all know 555 timers are very useful and po… ...

4. LEDs: For the celebratory light show. 5. Power Source: To power the entire setup. The construction process involves assembling the Colpitts Oscillator circuit and connecting it to the Arduino.

An Arduino Nano receives the signal from the TA7642 IC and lights up a series of LEDs as it detects strikes in closer and closer proximity to the detector.