int val0 = 0;     // variable pour stocker les valeurs recues
int val1 = 0;
int val2 = 0;

int analogPin0 = 0;
int analogPin1 = 1;
int analogPin2 = 2;
int etatroulette = 1;
int ancienroulette = 1;


long previousMillis = 0;


long interval = 200; // intervalle entre 2 captures

void setup()
{

  Serial.begin(9600);
}

void loop()
{
  unsigned long currentMillis = millis();

  val0 = analogRead(analogPin0); // on lit tout d un coup
  val1 = analogRead(analogPin1);
  val2 = analogRead(analogPin2);

  if(currentMillis - previousMillis > interval)
  {
    // save the last time you blinked the LED
    previousMillis = currentMillis;


      if ( val0 > 100 && val0 < 400 )
      {
        Serial.println("a");//
      }

      else if ( val0 > 600 && val0 < 800 )
      {
        Serial.println("e");//
      }


      else if ( val1 > 100 && val1 < 400 )
      {
        Serial.println("r");//
      }

      else if ( val1 > 600 && val1 < 800 )
      {
        Serial.println("y");//
      }

      else if ( val2 > 100 && val2 < 400 )
      {

        Serial.println("m");//
      }

      else if ( val2 > 600 && val2 < 800 )
      {

        Serial.println("p");//
      }

    }






      else if ( val0 > 400 && val0 < 600 )
      {
         //Serial.println("z");//
       etatroulette = 2;
      }

      else if ( val2 > 400 && val2 < 600 )
      {
        etatroulette = 1;

      }

      else if ( val1 > 400 && val1 < 600 )
      {

        etatroulette = 4;
      }






      if ( etatroulette != ancienroulette )
      {


        if ( etatroulette == 1 &&  ancienroulette == 4 )
        {
          //DESCENDRE
          Serial.println("u");
        }

        else if ( etatroulette == 4 &&  ancienroulette == 1 )
        {
          //monter
          Serial.println("i");
        }

       else if( etatroulette < ancienroulette )
        {
          //monter
          Serial.println("i");
        }

        else if ( etatroulette > ancienroulette )
        {
          //DESCENDRE
          Serial.println("u");
        }



        ancienroulette = etatroulette ;
      }



}