I build my AstroEQ a year ago and can say after a bugfix ( this thread )
in the indi-eqmod-module it works very well. I build it on an arduino mega 2560 and the first connection fails every time but it automatically connects again and everything works. Currently I try to get my guiding more stable which can be very tricky. I didn't have any problems with tracking: I right-click on a position in kstars, select EQMod->track and it works.

Also I can recommend the custom pulleys for the EQ5 in the AstroEQ project.

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