int ldrpin = A0;
int ldrvalue = 0;
int  led1=8;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(ldrpin, INPUT);
  pinMode(led1, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  ldrvalue = analogRead(ldrpin);
  Serial.print("LDR Value: ");
  Serial.println(ldrvalue);

  // LIGHT OR DARK DETECTION 
  if (ldrvalue > 500){
    Serial.println(" ----> Light Detected ☀️");
    digitalWrite(led1, LOW);
  }else {
   Serial.println("---> Dark Detected 🌙");
   digitalWrite(led1, HIGH);
  }
  
  delay(500);
}