#define LDR_PIN 2

void setup() {
  pinMode(LDR_PIN, INPUT);
  pinMode(10,OUTPUT);

  Serial.begin(9600);
}

void loop() {
 
  if (digitalRead(LDR_PIN) == HIGH) {
    
    digitalWrite(10,HIGH);
  }
  else{digitalWrite(10,LOW);}
  Serial.println(digitalRead(LDR_PIN));
  delay(100);
}