But building a metal detector yourself doesn’t have to be hard, as [Mirko] shows in a recent post. His STM32-based pulse induction metal detector looks good and works well, as you can see in the ...

Metal detecting is now a serious pastime for ... More experienced searchers prefer a PI (Pulse Induction) detector. This uses pulse signals to penetrate the ground for deeper searches, even ...

A pulsed induction metal detector induces a current spike in its ... In [Łukasz]’s design the ATtiny13 fires a pulse at his coil using a MOSFET, and the voltages at the coil are sensed by ...