13.56MHz RFID module

Interfacing this module to Arduino cannot be easier, it's in TTL SPI interface. It can directly connect to SPI pins of Arduino and you are good to go.

The tutorial linked below shows the steps to get it going.

Operating voltage: 3.3 V
Sensing distance: 0 - 40 mm

Pin Definitions of RFID card module:

See this page for tutorials on how to use this RFID module.

Datasheet of the NXP processor used:

https://www.nxp.com/docs/en/data-sheet/MFRC522.pdf

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