HOW TO DO FIRE ALARM WITH WATER

 Diagram 




CODE 

int flame=0;// select analog pin 0 for the sensor


int Beep=9;// select digital pin 9 for the buzzer


int val=0;// initialize variable


int relay= 13;


 


/* The setup() function is called when a sketch starts. It is used to initialize variables, pin modes, start using libraries, etc. This function will only run once, after each power up or reset of the Arduino board. */


 


void setup()


{


 pinMode(Beep,OUTPUT);// set buzzer pin as “output”


pinMode(relay,OUTPUT);// set LED pin as “output”


pinMode(flame,INPUT);// set flame pin as “input”


Serial.begin(9600);// set baud rate at “9600”


}


 


/* The loop() function executes the program repeatedly until Specified. */


 


void loop()


{


 val=analogRead(flame);// read the analog value of the sensor


 Serial.println(val);// output and display the analog value


 if(val>=500)// when the analog value is larger than 600, the buzzer will buzz


 {


 digitalWrite(Beep,HIGH);


 digitalWrite(relay,HIGH);


 }else


 {


 digitalWrite(Beep,LOW);


 digitalWrite(relay,LOW);


 }


 delay(500);


}



Lingeswar Time 







HOW TO DO FIRE ALARM

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