* Features *
Unlocks a Door (controls a relay actually) using a RC522 RFID reader with SPI interface on your Arduino.
You define a Master Card which is act as Programmer then you can able to choose card holders who able to unlock the door or not.
Working curren t: 13 - 26mA/ 3.3V DC
Idle current DC : 10-13mA/ 3.3V
Sleep current : <80uA
Peak current : <30mA
Operating frequency : 13.56MHz
In support of the card type : Mifare1 S50, Mifare1 S70, Mifare UltraLight, Mifare Pro, Mifare Desfire
Operating temperature : -20 - +80 degrees Celsius
Environment temperature : -40 - +85 degrees Celsius