OVERVIEWIf you have worked in an office before, you are probably aware of those RFID cards or Tags that would unlock specific doors depending on your access.Well let’s make a simple Arduino RFID reader using the RC522 module, and program the Arduino to do something when the right card is detected.This simple example will read the serial number on the Card or Tag, display it in the serial monitor, sound a buzzer and light up some LEDs.Of course this project could be interfaced to open doors, swit