Arduino measuring its own power supply

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i'm using protected lipo power arduino, i'd monitor own power supply. way can think of doing voltage divider circuit.



is safe do? there better way?

what lipo voltage? if it's not >6v can't plug in vin input , 5v output (it less input voltage).

you can use voltage divider circuit measure battery if have battery >6v vin pin.

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the flexible midi shield: midi in/out, stacking headers, choice of i/o pins


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