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The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz.


  • MFRC522 chip based board
  • Operating frequency: 13.56MHz
  • Supply Voltage: 3.3V
  • Current: 13-26mA
  • Read Range: Approx 3cm with supplied card and fob
  • SPI Interface
  • Max Data Transfer Rate: 10Mbit / s
  • Dimensions: 60mm × 39mm


Communicating with an RC522 RFID module is a lot of work, but luckily for us there is an Arduino library called the MFRC522 library that makes reading and writing RFID tags simple.

RFID MFRC522 13.6MHz


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