I'm trying to get the Arduino to turn on my cable box ... Thats the Hex IR Code to turn it on ... I have a pronto (universal remote) ... I just want to flash the IR LED (on in 13) to make that happen ... I have my computer plugged in USB to the board ... and I want to send the timing to the board ... once the board has all the correct timing ... I want it to flash the led at those speeds ...