FINAL PROJECT

/*
 * Manvi Mittal
 * Final Project
 */

// variables for LEDS
const int pinLedRed = 7;
const int pinLedGreen = 6;

// variables for servo motor
#include <Servo.h>

Servo miServito;


// variables for piezo
const int piezoPin = 8;

#include "pitches.h"

// notes in the melody:
int melody[] = {
  NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4
};

// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
  4, 8, 8, 4, 4, 4, 4, 4
};

// variables for RFID
#include <SPI.h>
#include <MFRC522.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;

// variables for LCD
#include <LiquidCrystal.h>

LiquidCrystal lcd (15, 19, 16, 2, 4, 5);


void setup() {
  // put your setup code here, to run once:
  // LED setup
  pinMode (pinLedRed, OUTPUT);
  pinMode (pinLedGreen, OUTPUT);

  Serial.begin (9600);

  // servo motor setup
  miServito.attach (3);
  Serial.begin (9600);
  miServito.write (140);

  // piezo setup
  pinMode (piezoPin, OUTPUT);
  Serial.begin (9600);

  // RFID 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 (16, 2);

}

void loop()
{
  lcd.clear();
delay (1);
 lcd.print ("SCAN KEY CARD");
  // 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("Message : ");
  content.toUpperCase();
  if (content.substring(1) == "3D 65 79 62") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    delay(3000);

    lcd.clear ();
    lcd.print("Welcome, Peter");
    delay(3000);
    lcd.clear ();

    digitalWrite (pinLedGreen, HIGH);
    delay (1000);
    digitalWrite (pinLedGreen, LOW);

    for (int thisNote = 0; thisNote < 8; thisNote++)
    {

    int noteDuration = 1000 / noteDurations[thisNote];
    tone(8, melody[thisNote], noteDuration);

    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
   }

    miServito.write (50);
    delay (5000);
    miServito.write (140);

  }
  else if (content.substring(1) == "DC 10 C7 B2") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    delay(3000);

    lcd.clear ();
    lcd.print("Welcome, Paul");
    delay(3000);
    lcd.clear ();

    digitalWrite (pinLedGreen, HIGH);
    delay (1000);
    digitalWrite (pinLedGreen, LOW);

    for (int thisNote = 0; thisNote < 8; thisNote++)
    {

    int noteDuration = 1000 / noteDurations[thisNote];
    tone(8, melody[thisNote], noteDuration);

    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
   }

    miServito.write (50);
    delay (5000);
    miServito.write (140);
  }

 else if (content.substring(1) == "22 99 00 0D") //change here the UID of the card/cards that you want to give access
  {
    Serial.println("Authorized access");
    Serial.println();
    delay(3000);

    lcd.clear ();
    lcd.print("Welcome, Mary");
    delay(5000);
    lcd.clear ();

    digitalWrite (pinLedGreen, HIGH);
    delay (1000);
    digitalWrite (pinLedGreen, LOW);

    for (int thisNote = 0; thisNote < 8; thisNote++)
    {

    int noteDuration = 1000 / noteDurations[thisNote];
    tone(8, melody[thisNote], noteDuration);

    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    // stop the tone playing:
    noTone(8);
   }

    miServito.write (50);
    delay (5000);
    miServito.write (140);
  }

 else   {
    lcd.clear ();
    lcd.print("ACCESS DENIED");
    delay(3000);
    lcd.clear ();

    digitalWrite (pinLedRed, HIGH);
    delay (1000);
    digitalWrite (pinLedRed, LOW);

    tone (piezoPin, 100, 500);
    delay (500);
    noTone (piezoPin);
  }

}