Fire Alarm

1int led_pin=A0;
2int Buzzer=A4;
3int analog_pin=A1;
4void setup()  {
5  Serial.begin(9600);
6  pinMode(led_pin, OUTPUT);
7   pinMode(Buzzer,  OUTPUT);
8}
9
10void loop() {
11  int Val;
12  Val=analogRead(analog_pin);
13   Serial.println(Val);
14  if(Val<130)
15  {
16    Serial.println("Flame Detection!!");  
17    digitalWrite(led_pin,HIGH);
18    digitalWrite(Buzzer,HIGH);
19    delay(1000);
20    digitalWrite(led_pin,LOW);
21     digitalWrite(Buzzer,LOW);
22    delay(1000);
23   }
24   else
25   {
26      Serial.println("No dangerous!"); 
27      digitalWrite(led_pin,LOW);
28      digitalWrite(Buzzer,LOW);
29      delay(500);
30   }
31   }
32