[neilw20]

It will work OK if we junk the push button strategy. That's what is stuffed.
You can feed a DC speed reference to the BLDC board, taking care of bitey mains on the early version and being careful on the later one.
The early one was a better controller using a motorla MC33033 which has to better than their Atmel attempt. (the piggy back board).
It should current limit and go soft before stopping dead. More dumb logic.