Thanks! Two file are attached - DMX_frames.pd depends on u_tabdump.pd

My main patch is sort of working - but my terribly hacky fix is that I’m sending a pre-emptive close and open message very 1 second. It mostly isn’t in the way of things - but t’s total hack - and does cause occasional glitches.

I’m not sure if other software works better - I don’t have any DMX software. But my impression is that this is a pretty widely used device. I suspect my patch/implementation more than the hardware. Is there a freely available application that might be good for a test?

-Jesse