Double clap circuit using Arduino

 

CODE:-

int bulbpin=9;

int soundpin=A3;

int wait=1;

int soundval1;

int soundval2;

boolean bulb=false;

int j;

void setup() {

  // put your setup code here, to run once:

pinMode(soundpin,INPUT);

pinMode(bulbpin,OUTPUT);

Serial.begin(9600);

}

void loop() {

  // put your main code here, to run repeatedly:

soundval1=analogRead(soundpin);

Serial.println(soundval1);

delay(wait);

soundval2=analogRead(soundpin);

Serial.println(soundval2);

if (soundval2-soundval1>8) {

  delay(500);

  

  if (soundval2-soundval1>12) {

    bulb=!bulb;

    digitalWrite(bulbpin,bulb);

    delay(100);

  }

}

}