Flame Car © CC BY-SA

int buzzer = 4 ;// define LED Interface

int buttonpin = 13; // define the flame sensor interface

int relay = 10;

int val ;// define numeric variables val

void setup ()

{

pinMode (relay, OUTPUT) ;// define LED as output interface

pinMode (buttonpin, INPUT) ;// output interface defines the flame sensor pinMode (buzzer, OUTPUT);

}

void loop ()

{

digitalWrite(relay, HIGH);

val = digitalRead (buttonpin) ;// digital interface will be assigned a value of 3 to read val if (val == HIGH) // When the flame sensor detects a signal, LED flashes {

digitalWrite(relay, LOW);

digitalWrite (buzzer, HIGH);

}

else

{

digitalWrite (buzzer, LOW);

}

}