Power problems

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  1. - 27th July 2008, 16:09 #1
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    menta
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    Default Power problems

    this is mostly hardware related, but maybe someone can help.

    I'm using PIC16F877A as described in this circuit :
    http://dj-gil.com/PIC/posts/SCHEMATIC4.pdf

    When I use the programmer to power the circuit everything is ok.
    But when I use the the 7805 to power the circuit I get junk on my LCD and nothing works.
    Any ideas ?

    BTW, the transformer is standard adjustable DC adaptor so it aleady has diode bridge inside.


    Thanks.
    Last edited by menta; - 27th July 2008 at 18:55.
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