[RFID-RC522] (https://3.bp.blogspot.com/-LIRYnr98scs/WxPHATmSfdI/AAAAAAABIlA/UzwXyHHkqCQpFBX0bW4NZXvnm_ARMAEDQCPcBGAYYCw/s1600/arduino-rfid-rc522-esquema.png)",""," [!

Arduino library for MFRC522 and other RFID RC522 based modules. Read and write different types of Radio-Frequency IDentification (RFID) cards on your Arduino using a RC522 based reader connected via ...

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.

Therefore, an effort was made to design a tool for “identification of impedance changes in metals using an Arduino Uno-based RFID RC522” which is relatively inexpensive and easy to carry.