Project - 7381 - Code Only

#include <SPI.h>
#include <MFRC522.h>
#include <Servo.h>

#define SS_PIN 10
#define RST_PIN 9
#define LED_B 6
#define BUZZER 7
MFRC522 mfrc522(SS_PIN, RST_PIN);
Servo myServo;

void setup()
{
  Serial.begin(9600);
  SPI.begin();
  mfrc522.PCD_Init();
  myServo.attach(5);
  myServo.write(10);
  pinMode(LED_B, OUTPUT);
  pinMode(BUZZER, OUTPUT);
  digitalWrite(BUZZER,1);
  digitalWrite(LED_B,1);
  Serial.println("Scanning Card...");
  Serial.println();

}
void loop()
{
  // Look for new cards
  if ( ! mfrc522.PICC_IsNewCardPresent())
  {
    return;
  }
  // Select one of the cards
  if ( ! mfrc522.PICC_ReadCardSerial())
  {
    return;
  }
  //Show UID on serial monitor
  Serial.print("UID tag :");
  String content= "";
  byte letter;
  for (byte i = 0; i < mfrc522.uid.size; i++)
  {
     Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
     Serial.print(mfrc522.uid.uidByte[i], HEX);
     content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
     content.concat(String(mfrc522.uid.uidByte[i], HEX));
  }
  Serial.println();
  Serial.print("State : ");
  content.toUpperCase();
  if (content.substring(1) == "59 55 E4 D5" || content.substring(1) == "A9 81 68 B2")
  {
    Serial.println("OK");
    delay(500);
    digitalWrite(LED_B, 0);
    digitalWrite(BUZZER,0);
    delay(100);
    digitalWrite(BUZZER,1);
    myServo.write(100);
    delay(5000);
    myServo.write(10);
    digitalWrite(LED_B, 1);
  }

 else   {
    Serial.println("n/a");
    digitalWrite(BUZZER,0);
    delay(100);
    digitalWrite(BUZZER,1);
    delay(500);
  }
}