const int LDRPin = A0;   // Use analog pin for the LDR
const int ledPin = 13;   // LED pin

int LDRValue = 0;        // Variable to store the analog value from the LDR

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);
  // Start serial communication for monitoring
  Serial.begin(9600); 
}

void loop() {
  // Read the analog value from the LDR (0 to 1023):
  LDRValue = analogRead(LDRPin);

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

  // Set a threshold for light detection
  if (LDRValue < 500) {   // If the value is less than 500 (adjust as needed)
    digitalWrite(ledPin, HIGH);  // Turn LED on when it's dark
  } else {
    digitalWrite(ledPin, LOW);   // Turn LED off when it's bright
  }

  delay(500);  // Small delay for readability
}