const int ldrPin = 34;  // LDR connected to analog pin A0
const int ledPin = 12;   // LED connected to digital pin D4

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

void loop() {
  int ldrValue = analogRead(ldrPin);  // Read LDR value
  Serial.println(ldrValue);  // Print LDR value to Serial Monitor (optional)

  if (ldrValue < 500) {  // Adjust this threshold based on ambient light conditions
    digitalWrite(ledPin, HIGH);  // Turn on the LED
  } else {
    digitalWrite(ledPin, LOW);  // Turn off the LED
  }
  
  delay(1000);  // Adjust delay as needed
}