How can I turn a tablet pc into a universal remote control?
I am interested in turning an old tablet pc into a universal remote control for my entertainment system. I would need to build a transmitter compatible with the computer and have a program that could allow it to give the right frequency to be used with a tv. I have looked online and the only things even close to this use 9-pin serial ports. This computer does not have any. Is there another way? If not would you be specific in the circuit needed to be built, I am not very good with circuits.