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A0 adc limit input? #28

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johndoe71rus opened this issue Oct 2, 2017 · 1 comment

johndoe71rus commented Oct 2, 2017

what are the limits of the voltage A0? Usual esp-12x up to 1v, you use a resistive divider at the input.
can i measure li-ion battery voltage?

Member

vowstar commented Oct 2, 2017 •

edited

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No, you can't use it to measure li-ion battery directly. You'd better use an amplifier to convert the voltage.

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