Thanks Scott,
I have the SHC - bought a kit from Canada with all the circuit boards and parts to build a controller and the SHC.
You are probably right the the STM32 would be enough, but I thought I might try the more powerful microprocessor for interest sake.
The NEMA17 is probably enough for my purposes. I just need some time to go through specs and see what is available, then ask for some advice on the forums.
DT
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