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Beginners • Re: Measuring voltage on GPIO to detect blackout

It's tempting to say "big resistor, job done" but I don't believe ARM chips are as robust as older microcontrollers and it was never recommended or advisable practice.

Don't do it
Opto-isolator / level converter - way safer Image may be NSFW.
Clik here to view.
:lol:

Statistics: Posted by MiscBits — Wed Jul 31, 2024 5:12 pm



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