byte pines [10] = {2, 3, 4, 5, 6, 7, 8, 9, 10 ,11};
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  for(byte i=0; i<10; i++){
    pinMode(pines[i], OUTPUT);
  }
  pinMode(A0, INPUT);
}


void loop() {
  int lectura = analogRead(A0);
  float voltaje = lectura * 0.0048828;
  Serial.println(voltaje);
  Serial.println(voltaje / 0.499);
  encendido(voltaje / 0.499);
  delay(100);
}

void encendido (byte limite){

  for(byte i=0; i<limite; i++){
    digitalWrite(pines[i], HIGH);
  }
  for(byte i=limite; i<=10; i++){
    digitalWrite(pines[i], LOW);
  }
}