I also have one of these controllers (new to me). I can connect to it with my mobile running Android 10.3.9 and the bluetooth dongle. With the Android app downloaded from Kelly's site the "buttons" for connect, read/write don't look right, but they work and I can change settings. I do have the extra dongle to go from the black plug to RS232, but seem to have misplaced it or I'd try it with windows 10.
