I think I've messed up cabling so will try again when my son goes to sleep.
This is the unit that I have (x3). I'm only trying to 'code' one at the time as I'll only use one at the time.
Basically, it says done but stays at original 52.15V.
I think i've messed up something with ground...
Stinkhorn,
I seem to have the same interface board as you do and the same FE rectifier. Would you mind sharing the whole connections (if it's not too much to ask picture of wires on PSU, Can-IF and arduino, also code and which library you were usiing?
That would be very much appreciated...