If you ever thought about becoming a treasure hunter this simple DIY metal detector by [mircemk] may be a nice project to start with. The design is based on an opensource metal detector called Smart ...
Why would you want to detect metal? Oh, I don't know … maybe you want to find some gold in the ground. You could dig up ALL the dirt, or you could find the location that has the gold before you dig.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results