The metal detector circuit shown here must represent the limits of simplicity for a metal detector, yet the design works surprisingly well. It uses just one 40106 hex Schmitt inverter IC, a capacitor ...

[vonPongrac] stumbled upon this handy guide, a free eBook on 50 555 Circuits, which contains many cool project ideas, including a simple metal detector circuit.

Electronics and circuits How the metal detector was made Using the metal detector. The challenge Rough Science has a gold theme running through it, ...

It was a perfect job for a metal detector, but since they didn’t own one, ... (BFO) circuit. It’s not the greatest design, it might even be the worst, ...

BTW, one of the cleverest circuit for an 8pin PIC I ever saw was a metal detector using an LC connected to its external oscillator pins with the L being the search coil. There is a nice collection of ...

A while ago I bought this non-contact metal detector module from an online store to see how it functions, and what I need to build it. The ... Both items together will help your understanding of the ...