#define LED 2
#define DO 15

void setup(){
  Serial.begin(115200);
  pinMode(LED, OUTPUT);
  pinMode(DO, INPUT);
}

void loop(){
  int lightIntensity = digitalRead(DO);

  if (lightIntensity == HIGH){
    digitalWrite(LED, HIGH);
  } else {
    digitalWrite(LED, LOW);
  }

  Serial.print("Light Intensity: ");
  Serial.println(lightIntensity);

  delay(100);
}