MFRC-522 RC522 RFID Card Reader Kit


Recommended for Arduino starters!

7 in stock

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SKU: MDU-INP-RFID-MFRC522 Categories: , Tags: , , , ,


The RC522 is a 13.56MHz RFID module that is based on the MFRC522 controller from NXP semiconductors. The module can supports I2C, SPI and UART and normally is shipped with a RFID card and key fob. It is commonly used in attendance systems and other person/object identification applications.


  • RFID frequency : 13.56MHz
  • Operating voltage : 2.5 – 3.3 V
  • Communication : SPI, I2C protocol, UART
  • Maximum Data Rate : 10Mbps
  • Read Range : 5 cm
  • Current Consumption : 13 – 26mA
  • Power down mode consumption : 10 uA (min)



Label Meaning Connection
3V3 3.3V power input Connect to 3.3V power source
RST Reset Connect to digital pin
GND Ground Connect to GND of system
IRQ Interrupt Optional : Connect to digital pin
MISO Master-In-Slave-Out Connect to pin 12 of Arduino
MOSI Master-Out-Slave-In Connect to pin 11 of Arduino
SCK Serial Clock Connect to pin 13 of Arduino
SDA Serial Data Connect to pin 10 of Arduino




** This module comes with unsoldered header pins, kindly reach us if you need soldering help **

Additional information

Weight 20 g
Dimensions 90 × 60 × 15 mm


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