const int LDR = A0;
const int led = 2;
int value = 0;

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

void loop() {
  value = analogRead(LDR);
  Serial.println(value);
  if(value < 610){
    digitalWrite(led, 0);
  } else {
    digitalWrite(led, 1);
  }
}