[Pierre] recently bought his first car and decided to make his own RFID electric starter for it! An Arduino Nano controls two relays which in turn can turn the car on, start it, and turn it off.

Underneath, an Arduino Uno runs the show, hooked up to a RC522 RFID interface board. Music is handled by the DFPlayer mini, which loads tracks off a microSD card. The DFPlayer can be hooked up to ...