//
//
//
//
//
#include <SPI.h>
#include <MFRC522.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

#define RST_PIN   9     // Configurable, see typical pin layout above
#define SS_PIN    10    // Configurable, see typical pin layout above

MFRC522 mfrc522(SS_PIN, RST_PIN);   // Create MFRC522 instance

/* Set your new UID here! */
#define NEW_UID {0xDE, 0xAD, 0xBE, 0xEF}

MFRC522::MIFARE_Key key;

LiquidCrystal_I2C lcd(0x3F, 16, 2);

Servo servito;



void setup() {
  Serial.begin(9600);  // Initialize serial communications with the PC
  while (!Serial);     // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
  SPI.begin();         // Init SPI bus
  mfrc522.PCD_Init();  // Init MFRC522 card
  Serial.println(F("Warning: this example overwrites the UID of your UID changeable card, use with care!"));

  // Prepare key - all keys are set to FFFFFFFFFFFFh at chip delivery from the factory.
  for (byte i = 0; i < 6; i++) {
    key.keyByte[i] = 0xFF;
  }

{
  lcd.begin();
  lcd.setBacklight((uint8_t)1);

  lcd.print("Scan ID");

  lcd.setCursor(0,1);
  lcd.print("Card Please");
  delay(100);

  servito.attach(6);

}
}

void loop() {

  // Look for new cards, and select one if present
  if ( ! mfrc522.PICC_IsNewCardPresent() || ! mfrc522.PICC_ReadCardSerial() ) {
    delay(50);
    return;
  }

  // Now a card is selected. The UID and SAK is in mfrc522.uid.

 Serial.println(F("Card UID:"));
  for (byte i = 0; i < mfrc522.uid.size; i++)
  {
    Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
    Serial.print(mfrc522.uid.uidByte[i], HEX);
  }
  Serial.println();

  lcd.clear();
if  (mfrc522.uid.uidByte[0] == 0xF2 && mfrc522.uid.uidByte[1] == 0x92 && mfrc522.uid.uidByte[2] == 0xC1 && mfrc522.uid.uidByte[3] == 0x49)
{
  lcd.print("Authorized");
  lcd.setCursor(0,1);
  lcd.print("Access");
  Serial.println("Authorized Access");
  servito.write(179);
  delay(1000);
  servito.write(0);
  }

else {
  lcd.print("Denied Access");
  Serial.println("Denied Access");
}
}