Fotoresistenza Arduino

int analogInPin = A0;
int sensorValue = 0;
int ledR = 5;
int ledV = 3;

void setup() {
  Serial.begin(9600);
  pinMode( analogInPin, INPUT);
  pinMode (ledR, OUTPUT);
  pinMode (ledV, OUTPUT);
}

void loop() {
  sensorValue = analogRead(analogInPin);
  if (sensorValue<200){
    digitalWrite (ledV,HIGH);
  }
  else{
    digitalWrite (ledV,LOW);
  }
  if (sensorValue>700){
    digitalWrite (ledR,HIGH);
  }
  else{
    digitalWrite (ledR,LOW);
  }

  Serial.print("sensor = " );
  Serial.println(sensorValue);

  delay(1000);
}