/RFID-RC522

RFID-RC522 for Arduino

Primary LanguageC++

Get start RFID with Arduino

First

  • Arduino UNO v3
  • RFID RC522

Connect

Pin layout should be as follows:

RFID Arduino
3.3V 3.3V
RST 9
GND GND
MISO 12
MOSI 11
SCK 13
SDA 10
IRQ -

IRQ Not connected

Installing RFID Libraries

cd ~/Documents/Arduino/libraries
git clone https://github.com/song940/rfid.git RFID

reboot arduino .

Example Code

#include <SPI.h>
#include <RFID.h>

#define SS_PIN 10
#define RST_PIN 9

RFID rfid(SS_PIN, RST_PIN);

void setup()
{
  Serial.begin(9600);
  SPI.begin();
  rfid.init();
}

void loop()
{
  if (rfid.isCard()) {
    Serial.println("Find the card!");
    if (rfid.readCardSerial()) {
      Serial.print("The card's number is  : ");
      Serial.print(rfid.serNum[0],HEX);
      Serial.print(rfid.serNum[1],HEX);
      Serial.print(rfid.serNum[2],HEX);
      Serial.print(rfid.serNum[3],HEX);
      Serial.print(rfid.serNum[4],HEX);
      Serial.println(" ");
    }
    rfid.selectTag(rfid.serNum);
  }
  rfid.halt();
}

License

MIT