int fs=13;
int buzzer=12;
int led=11;
void setup(){
  pinMode(fs,INPUT);
  pinMode(buzzer,OUTPUT);
  pinMode(led,OUTPUT);
  Serial.begin(9600);
}
void loop(){
  int n=digitalRead(fs);
  Serial.print(n);
  delay(500);
  if(n==1){
    digitalWrite(buzzer,0);
    digitalWrite(led,0);
    Serial.println("FIRE IS NOT DETECTED");
    
   
  }
  else{
    digitalWrite(buzzer,1);
    tone(12,262,250);
    digitalWrite(led,1);
    Serial.println("FIRE IS  DETECTED");
    
    
  }
}