const int ldrPin = A0;   // LDR sensor connected to analog pin A0
const int ledPin = 13;   // LED connected to digital pin 13

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

void loop() {
  int ldrValue = analogRead(ldrPin);  // Read the LDR sensor value
  int threshold = 500;  // Adjust this threshold based on ambient light conditions

  Serial.print("LDR Value: ");
  Serial.println(ldrValue);  // Print LDR value for debugging

  // Check if the LDR value is below the threshold
  if (ldrValue < threshold) {
    digitalWrite(ledPin, HIGH);  // Turn on the LED
    Serial.println("Dark");       // Print "Dark" for debugging
  } else {
    digitalWrite(ledPin, LOW);   // Turn off the LED
    Serial.println("Light");      // Print "Light" for debugging
  }

  delay(500);  // Add a delay to avoid rapid LED state changes
}