BOTONES EN EL MONITOR SERIE

Hola chicos! Quiero saber como hago para prender unos leds desde el monitor serie con botones que se llamen off y on. O sea no se como programar para que los botones aparezcan en el monitor.

Please don't post the same question twice. As you posted in the English section, questions should be asked in English like you did in this thread regarding the same subject in the same section.

FYI, there is a dedicated spanish section.