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GRBLDuino Mega Lite and optoisolator

Posted: Wed Jun 16, 2021 8:30 am
by DavidR8
I'm planning to use inductive limit switches on my PrintNC build. I have one of your opto isolator boards destined for another build using a Uno.
I'm assuming the opto isolator is necessary for the GRBLDuino Mega Lite also?