int soundSensor = 2;
int led = 13;

void setup() {
  pinMode(soundSensor, INPUT);
  pinMode(led, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int soundValue = digitalRead(soundSensor);
  if (soundValue == HIGH) {
    digitalWrite(led, HIGH);
    Serial.println("Sound detected!");
  } else {
    digitalWrite(led, LOW);
  }
}