The most common module/breakout board is the PN532 NFC RFID module (v3) by Elechouse. I am guessing that you have an Arduino Uno board handy. Even though most of the available libraries (for PN532) ...

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.

The Arduino acts as the brains of the operation while an off-the-shelf NFC/RFID reader module is used to read the RFID tags. To add new keys to the system, [Jason] simply swipes his “master ...