Apart from understanding the Arduino's code language ... to this main processor, the Nano also has another chip on board, the FTDI FT232RL, which handles USB communication as the ATmega328 ...

An Arduino Nano controls two relays which in turn can turn the car on, start it, and turn it off. Instead of adding a button for “push to start” he opted for a 13.56MHz RFID module.

With this he was able to push the number of cycles to over five million. Assuming the Arduino Nano clone isn’t using an amazingly high-quality EEPROM we can safely assume that most of us have ...