PBP and 7 segments passive LCD

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  1. - 10th October 2010, 12:40 #1
    Gusse's Avatar
    Gusse
    Gusse is offline Member
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    Somehow Darrel's comment reminded me why I didn't continue with passive LCD displays. Most of the passive LCD specs says max 50mV DC, even some worked OK with higher DC levels for long times without any degradations.
    This was a very good comment from Darrel. Thanks!

    I never did try cap de-coupling, which could work to remove DC component. Don't know if this would work but give a try.
    Try for example 1-10uF caps in series on every LCD signals. If it is not working, then try to increase value.

    I'l try to check this with my old passive LCD and let you know if any success...

    BR,
    -Gusse-
  2. - 20th October 2010, 16:33 #2
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    fratello
    fratello is offline Senior Member
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    Another example, this time using Atmega8. Great ! I will try this ...till writting my own code in PBP.
    http://www.radiolocman.com/shem/sche....html?di=63917
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