voltage monitor

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  1. - 21st July 2007, 23:36 #1
    aftab's Avatar
    aftab
    aftab is offline Junior Member
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    Lightbulb voltage monitor

    Hello friends,

    I would like to make a voltage monitor for my battery pack.
    It has 4 li-ion batteries.

    When the voltage drops below 3.0 in any of the batteries it will blink a led.

    My understanding is that I need an analog to digital converter IC that will
    measure the voltage. Just want to make a very very simple circuit.

    I have seen some examples here using maxim ICs. Up to this
    point I have bought all my ICs from e-bay :-) Could not find the maxim ICs
    in e-bay. What about using pic12c671 ?

    Any suggestion where to start ?

    Thanks
    Last edited by aftab; - 22nd July 2007 at 00:20.
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