PIC powered by capacitor for 0,5 second


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  1. #1
    Join Date
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    Default

    OK. Now is Clear. Well, the 1 Farad is very large capacitor at 5.5Volt. I think is the cheaper and easiest solution.

    Only as a precaution, use a small resistor of 100 ohms to charge it, not directly at +5V.

    Ioannis

  2. #2
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    May 2004
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    Lightbulb

    Hi, Roger

    Why not, when removing power, enter a BASIC .5 seconds SLEEP command, and then verify if power is still here ???

    Think to modify the WDT prescaler ... cause PbP sets it to 128 ( the 2.3 s granularity ! )
    See OPTION Reg setting (in PBPIC.xx LIB ... ???)

    The capacitor size could be reduced ...

    Alain
    Last edited by Acetronics2; - 24th August 2007 at 09:36.
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