The Flipper Zero can make use of the GPIO to output electrical signals and act as a signal generator. I previous used this to simulate an antilock braking program module over a vehicle to substantiate that every one the wiring and pcs in the car have been working. The Flipper https://flipperzeroebay26791.luwebs.com/37067107/not-known-factual-statements-about-flipper-zero-images