apuntes_Arduino/leds/serial_leds/serial_leds.ino

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();
    }
}