void setup() {
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  Serial.begin(9600);
}

void ciclo1() {
  int i=0;
  while (i < 5) {
    digitalWrite(3, LOW);
    digitalWrite(2, HIGH);
    delay(500);
    digitalWrite(2, LOW);
    digitalWrite(3, HIGH);
    delay(500);
    ++i;
  }
  apagaLeds();
}

void ciclo2() {
  int j=0;
  while (j < 5) {
    digitalWrite(3, LOW);
    digitalWrite(2, HIGH);
    delay(50);
    digitalWrite(2, LOW);
    digitalWrite(2, HIGH);
    delay(50);
    digitalWrite(2, LOW);
    digitalWrite(3, HIGH);
    delay(50);
    digitalWrite(3, LOW);
    digitalWrite(3, HIGH);
    ++j;
  }
  apagaLeds();
}

void apagaLeds() {
    digitalWrite(2, LOW);
    digitalWrite(3, LOW);
}

void loop() {
  int serialCom;
  if (Serial.available() > 0) {
      serialCom = Serial.read();
      Serial.print("Valor  Recibido : ");
      Serial.println(serialCom);
     switch (serialCom) {
    case 49:
      ciclo1();
      break;
    case 50:
      ciclo2();
      break;
    default:
      apagaLeds();
  }
  delay(100);
  Serial.read();
  }
}