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Thanks David!
Nice setup! Have you got the SHC too?
I also considered the MaxESP build as it uses the same microcontroller as the SHC, but it's much more complicated and expensive to build. I started this build knowing nothing about electronics and when I was researching how to do things, found a lot more support for the STM32.
That being said, both these microprocessors are more than adequate to control a decent goto mount, plus both can handle an additional focuser too.
Does size of motor matter with the microcontroller? I've seen a few large dobs (25"+) which use Nema 17's. My main scope is a 16" dob and I've got also bought Nema 17's with a 51:1 planetary gear. Time will tell....
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