Simple Node-RED node for the Raspberry Pi to read NFC tags via a RC522 NFC reader. It can return the UID and optionaly a data block. Chip Select (SDA) pin is also configurable (defaults to CE0, 24).
npm install node-red-contrib-mfrc522-rfidA [Node-Red][1] node that allows you to read NFC tags with an RC522 card reader.
Tested the node on a Raspberry Pi.
This is a fork of:
https://github.com/LennartHennigs/node-red-contrib-rc522
I needed to be able to configure the Chip Select (SDA) pin and to read a block of data, so I have added these options ;)
You need to connect to RC522 card reader to the following pins:
``
SDA(CS) 24 (BCM 8) (default, can be configured)
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][2] to identify the proper pins.
The node ist based on the [mfrc522-rpi][3] node package.
[1]: https://nodered.org
[2]: https://pinout.xyz/
[3]: https://github.com/firsttris/mfrc522-rpi