int analog_val;
int rango;
int etapas;
bool mostrar = false;

void setup() 
{
  Serial.begin(9600);
  pinMode(10, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(6, OUTPUT);
  etapas = 1;
  Serial.println("Binvenido a Car Wash Aña");
}

void loop() 
{
  
  analog_val = analogRead(A0);
  delay(20);
  rango = map(analog_val, 0, 1023, 1, 3);
  switch(rango)
  {
    case 1: 
    if (!mostrar) {
        Serial.println("Pequeño");
        mostrar = true;
      }
    delay(200);

  switch(etapas)
  {
    case 1:
    digitalWrite(12, HIGH);
    Serial.println("Etapa de lavado...");
    delay(5000);
    digitalWrite(12, LOW);
    etapas += 1;
    break;
    
    case 2:
    digitalWrite(10, HIGH);
    Serial.println("Etapa de enjuague...");
    delay(5000);
    digitalWrite(10, LOW);
    etapas +=1;
    break; 

    case 3:
    digitalWrite(11, HIGH);
    Serial.println("Etapa de secado...");

    delay(5000);
    digitalWrite(11, LOW);
    etapas += 1;
    break;

    case 4: 
    digitalWrite(6, HIGH);
    Serial.println("El batimovil is ready");
    delay(5000);
    digitalWrite(6, LOW);
    etapas += 1;
    break;

    default:
    break;
  }
  break;

  case 2: 
  if (!mostrar) {
        Serial.println("Mediano");
        mostrar = true; 
      }
    delay(200);

  switch(etapas)
  {
    case 1:
    digitalWrite(12, HIGH);
    Serial.println("Etapa de lavado...");
    delay(10000);

    digitalWrite(12, LOW);
    etapas += 1; 
    break;
    
    case 2:
    digitalWrite(10, HIGH);
    Serial.println("Etapa de enjuague...");
    delay(10000);
    digitalWrite(10, LOW);
    etapas +=1;
    break; 

    case 3:
    digitalWrite(11, HIGH);
    Serial.println("Etapa de secado...");
    delay(10000);
    digitalWrite(11, LOW);
    etapas += 1;
    break;

    case 4: 
    digitalWrite(6, HIGH);
    Serial.println("El batimovil is ready");
    delay(10000);
    digitalWrite(6, LOW);
    etapas += 1;
    break;

    default:
    break;
  }
    case 3: 
    if (!mostrar) {
        Serial.println("Grande");
        mostrar = true;
      }
    delay(200);

  switch(etapas)
  {
    case 1:
    digitalWrite(12, HIGH);
    Serial.println("Etapa de lavado...");
    delay(15000);

    digitalWrite(12, LOW);
    etapas += 1; 
    break;
    
    case 2:
    digitalWrite(10, HIGH);
    Serial.println("Etapa de enjuague...");
    delay(15000);
    digitalWrite(10, LOW);
    etapas +=1;
    break; 

    case 3:
    digitalWrite(11, HIGH);
    Serial.println("Etapa de secado...");
    delay(15000);
    digitalWrite(11, LOW);
    etapas += 1;
    break;

    case 4: 
    digitalWrite(6, HIGH);
    Serial.println("El batimovil is ready");
    delay(10000);
    digitalWrite(6, LOW);;
    etapas += 1;
    break;

    default:
    break;

  }
}
}