it was time to build the rest of the metal detector. Look ma, no MCU! The sensor coil was made by salvaging the wire from an old fluorescent lamp ballast and winding it around the lid of a bucket ...

the higher the ID value. We’ve picked up DIY metal detectors of all sizes over the years, but this one is the ATtiny-ist.

With the latest update, a new tool, the Metal Detector, has been introduced to help you locate more ore, making the search ... and 10 Circuit Boards to build. Like the Weapon Assembly Line 2 ...