const int ldrPin = A0;  // LDR connected to analog pin A0
const int ledPin = 9;   // LED connected to digital pin 9
const int threshold = 500; // Light threshold value

void setup() {
  pinMode(ledPin, OUTPUT); // Set LED pin as output
  Serial.begin(9600);      // Initialize serial communication
}

void loop() {
  int ldrValue = analogRead(ldrPin); // Read LDR value

  // Print the value to the Serial Monitor
  Serial.print("LDR Value: ");
  Serial.println(ldrValue);

  // Control LED based on light intensity
  if (ldrValue < threshold) {
    digitalWrite(ledPin, HIGH); // Turn LED ON
  } else {
    digitalWrite(ledPin, LOW);  // Turn LED OFF
  }

  delay(500); // Delay for stability
}