const int LDR_PIN = A0;  // Connect the LDR to analog pin A0
const int LED_PIN = 9;   // Connect an LED to digital pin 9

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

void loop() {
  int ldrValue = analogRead(LDR_PIN);  // Read the analog voltage from the LDR
  int brightness = map(ldrValue, 0, 1023, 0, 255);  // Map the LDR value to LED brightness (0-255)

  analogWrite(LED_PIN, brightness);  // Set the LED brightness

  Serial.print("LDR Value: ");
  Serial.println(ldrValue);

  delay(100);  // Delay for smoother reading (adjust as needed)
}