const int ledPin = 13;
const int ldrPin = A0;

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

void loop() {
  int ldrStatus = analogRead(ldrPin);
  Serial.println(ldrStatus);
  if (ldrStatus <=30) {
  digitalWrite(ledPin, HIGH);
// Serial.println("LDR is DARK, LED is ON");
}

else {
  digitalWrite(ledPin, LOW);
  Serial.println("---------------");
}

}