Arduino measuring its own power supply


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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