We’ve all seen, and occasionally wrestled with, bill acceptors like the one [Another Maker] recently liberated from an arcade machine. But have you ever had one apart to see how it works? If … ...

Discover the ultimate DIY project: a Mechanical Coin Sorting Machine! In this video, I’ll guide you through creating a highly efficient, fully mechanical coin sorter that can handle up to 300 coins ...

Using an Arduino, coin acceptor, LCD screen, and a handful of other components, [Mistablik] started by prototyping the electronics in a shoebox.