int pinEtat_NC = PB0;   
int pinSortie_NC_A = PB1;
int pinSortie_NO_A = PB2;
int pinSortie_NC_B = PB3;
int pinSortie_NO_B = PB4;
int Pulse = 180;

bool Etat_NC;
bool Etat_NC_old;

void setup() {
  pinMode(pinEtat_NC, INPUT_PULLUP);
  pinMode(pinSortie_NC_A, OUTPUT);
  pinMode(pinSortie_NO_A, OUTPUT);
  pinMode(pinSortie_NC_B, OUTPUT);
  pinMode(pinSortie_NO_B, OUTPUT);
  
  Etat_NC = digitalRead(pinEtat_NC);
  Etat_NC_old = Etat_NC;
  
  afficheLeds();
}

void loop() {
  Etat_NC = digitalRead(pinEtat_NC);
  
  if (Etat_NC != Etat_NC_old){
    Etat_NC_old = Etat_NC;
    afficheLeds();
  } else {
    digitalWrite(pinSortie_NO_A, LOW);
    digitalWrite(pinSortie_NO_B, LOW);
    digitalWrite(pinSortie_NC_A, LOW);
    digitalWrite(pinSortie_NC_B, LOW);
  }
}

void afficheLeds(){
	if (Etat_NC == HIGH){
		digitalWrite(pinSortie_NO_A, LOW);
    digitalWrite(pinSortie_NO_B, LOW);

    digitalWrite(pinSortie_NC_A, HIGH);
    digitalWrite(pinSortie_NC_B, HIGH);

    delay(Pulse);

    digitalWrite(pinSortie_NC_A, LOW);		
    digitalWrite(pinSortie_NC_B, LOW);	

  } else {
		digitalWrite(pinSortie_NC_A, LOW);
    digitalWrite(pinSortie_NC_B, LOW);

		digitalWrite(pinSortie_NO_A, HIGH);
    digitalWrite(pinSortie_NO_B, HIGH);

    delay(Pulse);
      	
    digitalWrite(pinSortie_NO_A, LOW);
    digitalWrite(pinSortie_NO_B, LOW);
  }
}