Arduino Laser Security Alarm || Laser Security with LDR

1const int ledPin = 13;
2
3const int buzzerPin = 12;
4
5const int   ldrPin = A0;
6const int laserPin = 7;
7
8void setup () {
9
10Serial.begin(9600);
11
12pinMode(ledPin,   OUTPUT);
13
14pinMode(buzzerPin, OUTPUT);
15
16pinMode(ldrPin, INPUT);
17pinMode(   laserPin , OUTPUT);
18
19digitalWrite( laserPin , HIGH);
20
21}
22
23void   loop() {
24
25int ldrStatus = analogRead(ldrPin);
26
27if (ldrStatus > 1) {
28
29tone(buzzerPin,   100);
30
31digitalWrite(ledPin, HIGH);
32
33delay(100);
34
35noTone(buzzerPin);
36
37digitalWrite(ledPin,   LOW);
38
39delay(100);
40
41Serial.println(" ALARM ACTIVATED ");
42
43}
44
45else   {
46
47noTone(buzzerPin);
48
49digitalWrite(ledPin, LOW);
50
51Serial.println("ALARM   DEACTIVATED");
52
53}
54Serial.println( ldrStatus );
55//delay(10);
56}

1const int ledPin = 13;
2
3const int buzzerPin = 12;
4
5const int  ldrPin = A0;
6const int laserPin = 7;
7
8void setup () {
9
10Serial.begin(9600);
11
12pinMode(ledPin,  OUTPUT);
13
14pinMode(buzzerPin, OUTPUT);
15
16pinMode(ldrPin, INPUT);
17pinMode(  laserPin , OUTPUT);
18
19digitalWrite( laserPin , HIGH);
20
21}
22
23void  loop() {
24
25int ldrStatus = analogRead(ldrPin);
26
27if (ldrStatus > 1) {
28
29tone(buzzerPin,  100);
30
31digitalWrite(ledPin, HIGH);
32
33delay(100);
34
35noTone(buzzerPin);
36
37digitalWrite(ledPin,  LOW);
38
39delay(100);
40
41Serial.println(" ALARM ACTIVATED ");
42
43}
44
45else  {
46
47noTone(buzzerPin);
48
49digitalWrite(ledPin, LOW);
50
51Serial.println("ALARM  DEACTIVATED");
52
53}
54Serial.println( ldrStatus );
55//delay(10);
56}