This article was updated and checked for accuracy in April 2024. It was originally published in 2021. Believe it or not, metal detection is actually possible on Android phones. In fact, the first ...

If you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adaptation.

There are some handy smartphone hacks you might not know about, including how to turn your phone into a metal detector or how to use the camera to measure your heart rate. Instead of using a pricey ...