I am making an exercise with 4 different RFID-RC522 (RF reader).
Each RFID sends a hexadecimal number to arduino, when arduino detects if number is the correct one, then turn on a led and a buzzer, if not, another buzzer is on.
Can you help me in this topic? I have not find a RF READER in XOD,maybe can be a new node in the program. Thanks.
Per https://playground.arduino.cc/Learning/MFRC522, This device used I2C protocol. You may be able to use existing I2C nodes to communicate with this device, or you may be able to modify existing nodes to work with it.
The other option is to create your own node that uses existing libraries for the device, but that would probably be more involved…