Kunci Pintu Otomatis Berbasis Arduino dan Radio Frequency Identification (RFID)

if ( ! mfrc522.PICC_ReadCardSerial())

{

return 0;

}

Serial.print("NOMOR ID ANDA ADALAH : ");

for (byte i = 0; i < mfrc522.uid.size; i++) {

readCard[i] = mfrc522.uid.uidByte[i];

Serial.print(readCard[i], HEX);

}

Serial.println("");

Serial.println("");