Hi, i have putting together a cnc shield and was planning to have some sort of isolation between the Step/Dir signals and the arduino. I am a little out of my depth here but here goes. I think i need some sort of digital optoisolation as i need to be careful of jitter due to software which means …

Arduino to external drive isolation

edgemoron September 25, 2017, 8:15am 2

20 millions bits (40 million HIGH/LOW transitions) per second?

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