Rfid Rc522 Circuit Diagram. Then connect the ground pin to ground. Connect nodemcu and rfid reader just like the wiring diagram above.
Since the rfid module works with spi communication we have connected the miso mosi sck and nss pin to the spi pins of the arduino uno board. Arduino mega or arduino uno. In spi pins only ss pin is changeable others need to be according to the.
In spi pins only ss pin is changeable others need to be according to the.
Since the rfid module works with spi communication we have connected the miso mosi sck and nss pin to the spi pins of the arduino uno board. And we can start the code. I also make a demo code that will ring a buzzer 3 times when a right tag is tapped. Nodemcu and rc522 rfid reader.
