We’ve all seen, and occasionally wrestled with, bill acceptors like the one [Another Maker] recently liberated from an arcade machine ... to talk to it with an Arduino, which makes all sorts ...

This innovative project allows you to build a vending machine using a little Arduino hardware and programming, along with a few laser-cut pieces to create the case. This project is perfect for ...

the bus can easily be sniffed over the Arduino’s serial console. This is just the start of a more involved project. Since this protocol is used to communicate with a vending machine’s currency ...