Since we have several discussions going on, I thought I would start a new thread to keep things organized.
I've been experimenting with Raspberry Pi 3 B+ using the AstroBerry OS on it. I haven't gotten to the dome control yet, but I did get the rotater rotating with INDI using Astronomy Linux when testing that on my tower computer (also on the "bench" since it's too cold and dome is iced up these days - waiting for some "spring" to happen!).
I've been impressed with what I've seen in the features of AstroBerry and hoping to work out the dome functions with it. Again, I'll admit that I haven't really tested it yet, but know there is some interest in it. My goal is to get it all working, run the observatory and imaging on it, and be free of Win 7.