So this project stalled when my Dell notebook crashed.
However, I have the software still, thanks to Hackaday! I also have a newer HP notebook that runs like a champ.
I also still have the hardware, and at some point will continue development in the DMX controller direction. We're currently waiting on a USB interface to arrive from god-knows-where... at which point a board becomes available for bench testing.
I don't want to control 75 channels with that board... But I will as proof that it works once I've hacked out the remainder of the code. I already have a small daughterboard with a RS-485 transceiver IC on the fixture.
Other projects, and my day job's development cycle are keeping this one slowed. That, and waiting on parts again.