to make a homemade theatre lighting control board. ie, take the desk part from the westhost thing and the DMX decoding part from the DigiPack, to get a 12 channel lighting desk with DMX outputs.
I can make a PCB, with 12 manual linear VRs and connect that in parallel with the flash buttons, etc to make a priority signalled controlled desk which decodes DMX from the computer and then mixes it with the analogue signals from my desk and makes it back into DMX.
I think I know how to do it, but I am not sure how to do the last part... ie, converting 12x 0-10v signals into DMX-512 using PICs. Also, I am a bit confused about how to make the DMX from the PC go into 12 0-10vs because the DigiPak converts the DMX to 4x PWMs.