RFID Door Lock (Updated)

1/// This project was made by Mehmet Efe Peker.
2#include <RFID.h>
3#include <SPI.h>
4#include <Servo.h>
5
6#define SS_PIN 10
7#define RST_PIN 9
8#define SERVO_PIN 8
9#define red 2
10#define green 3
11#define buzzer 7
12#define pir 4
13
14int data;
15
16Servo servo;
17RFID rfid(SS_PIN, RST_PIN);
18
19boolean card = false;
20int rfid_id[5] = {227, 88, 145, 52, 30};
21boolean lock = false;
22
23void lock_door() { /// Closes the door.
24  if (lock) {
25    servo.write(180);
26    Serial.println("Door closed.");
27    delay(100);
28    servo.write(0);
29  }
30}
31
32void setup() {
33  pinMode(red, OUTPUT);
34  pinMode(green, OUTPUT);
35  pinMode(buzzer, OUTPUT);
36  pinMode(pir, INPUT);
37  servo.attach(SERVO_PIN);
38  Serial.begin(9600);
39  SPI.begin();
40  rfid.init();
41}
42
43void loop() {
44  card = true;
45  data = digitalRead(pir);
46  Serial.print("Veri: ");
47  Serial.println(data);
48  servo.write(180);
49  if (rfid.isCard()) {
50    if (rfid.readCardSerial()) {
51      Serial.print("ID: ");
52      delay(100);
53    }
54    for (int i = 0; i < 5; i++) {
55      Serial.print(rfid.serNum[i]);
56      Serial.print(" ");
57      delay(100);
58    }
59    boolean trueid = true;
60    for (int i = 0; i < 5; i++) {
61      if (rfid_id[i] != rfid.serNum[i]) {
62        trueid = false;
63        break;
64      }
65    }
66    if (trueid) {
67      Serial.println();
68      delay(1000);
69      Serial.println("Welcome to your room");
70      delay(1000);
71      digitalWrite(green, HIGH);
72      delay(200);
73      digitalWrite(red, LOW);
74      tone(buzzer, 3);
75      delay(1000);
76      noTone(buzzer);
77      delay(100);
78      servo.write(0);
79      delay(2000);
80      Serial.println("Door opened.");
81      delay(1000);
82      digitalWrite(green, LOW);
83      delay(10000);
84      lock_door();
85      delay(2000);
86      servo.write(180);
87      Serial.println("Door closed.");
88      while (true) { // Loop to check PIR sensor continuously
89        data = digitalRead(pir);
90        if (data == 1) {
91          Serial.println("Motion detected, opening door.");
92          servo.write(0);
93          delay(2000); // Door stays open for 2 seconds
94          Serial.println("Door opened.");
95          tone(buzzer, 3);
96          delay(1000);
97          noTone(buzzer);
98          delay(10000); // Wait for 10 seconds
99          servo.write(180);
100          Serial.println("Door closed.");
101          tone(buzzer, 3);
102          delay(2000); // Allow time for door to close
103          noTone(buzzer);
104        }
105        delay(500); // Check every 0.5 seconds
106      }
107    } else {
108      digitalWrite(red, HIGH);
109      tone(buzzer, 3);
110      delay(1000);
111      noTone(buzzer);
112      Serial.println("Wrong ID.");
113      delay(2000);
114      digitalWrite(red, LOW);
115    }
116  }
117}