const int ldrPin = A0;
const int ledPin = 7;

int lightValue = 0;
int threshold = 500;   // Adjust if needed

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {

  lightValue = analogRead(ldrPin);

  Serial.print("Light Value: ");
  Serial.println(lightValue);

  // Dark -> LED ON
  if (lightValue < threshold) {
    digitalWrite(ledPin, HIGH);
  }
  // Bright -> LED OFF
  else {
    digitalWrite(ledPin, LOW);
  }

  delay(200);
}