const int ldrPin = A0;
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  int ldrvalue = analogRead(ldrPin);
  Serial.print("LDR Value :");
  Serial.println(ldrvalue);
delay(2000);
}