Reply to "The RR Track Signal Control Board Project"

MJCATOGR Forum Member

gunrunnerjohn posted:
Do you have any protection for the uP input pins? Nasty things can happen on the rails, I'd want some protection for low voltage inputs.

Correct. Cause if you allow any nastiness above the 5v to hit one of those pins, the little tiny nano turns into a highly effective space heater. You wouldnt want to be holding it in your hand when that happens. Trust me.

8/2/184:04 PM

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