simple pi metal detector?

[totob]

https://www.youtube.com/watch?v=zEwGavnWW5o

[homefire]

LOL, Trash Technology at it's best. Those Resistors look to be about 1960 vintage.

[kt315]

russkije do not need in advanced GEB on hard soil in their projects. hard mineralized soil is capitalistic fiction.

[homefire]

LOL, Everone here seems to Love the VID numbers thing too. I love following behind them without a VID. Ever notice the people that didn't read the book saying it can't be done are the ones that get it done?