@jay_s_uk Jay
This is a little out of my league and from what I read uart mode is not available except with duet5 expansion , if I used the duet breakout uart is still not available. I need 1 driver and am trying to come with the best solution. I saw the TMC2660-BOB could this be used or what is the best way to accomplish this and if you know of some good reference reading I would appreciate it.
Thanks
Gary