Hy, I have software serial on pins 2 and 3, is there a way to prevent arduino from drawing power from it while 5v supply isnt there? I can see it turning on and off and messing up serial data. Thank you

Prevent arduino from drawing power from digital pins?

Paul_KD7HB November 8, 2021, 6:54pm 3

How do you know there is no 5 volt supply?
Paul

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