A Node-Red node that allows you to read NFC tags with an RC522 card reader. Tested the node on a Raspberry Pi.
You need to connect to RC522 card reader to the following pins:
SDA 24 (BCM 8) SCK 23 (BCM 11) MOSI 19 (BCM 10) MISO 21 (BCM 9) IRQ - GND 20 RST 22 (BCM 25) VCC 17 (3v3 PWR)
See pinout.xyz to identify the proper pins.
The node ist based on the mfrc522-rpi node package.