Pinball machines are large ... An Arduino Uno handles the three buttons, the four LED matrixes, and a solenoid for haptic feedback, communicating with the Pi via serial. Unfortunately, even ...

With the MPU removed, you are left with four wire harnesses holding a total of 66 wires. To connect your PC to the pinball machine, you will want to build ... are used to drive a 74LS154 decoder on ...