I ordered a new controller, throttle and brake today. I now has a magnificent pedal bike that works fully. I am just too lazy to pull the tire, tube and freewheel and put them back on the old rim. I did order 2 of the better CellLog monitors - mostly because there were so many of the "deluxe" ones in stock and none of the ones I originally wanted. They will work famously.

One thing I learned is that I am not gentle and once you have it working, don't mess with that part. Change is not always good if handled roughly. I needed spare parts anyways - and things to experiment on, but not everyone wants those. Still, they can sit for a few months while I cool down at my own stupidity.