LCD error. letters are shifting each water valve is ON

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  1. - 23rd July 2012, 12:53 #1
    wishesdoom's Avatar
    wishesdoom
    wishesdoom is offline Junior Member
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    Default Re: LCD error. letters are shifting each water valve is ON

    here is power supply:
    http://static4.tme.eu/katalog_pics/8...b5/dr-4524.jpg

    the pic and LCD is feeded by two 78l05cv
  2. - 23rd July 2012, 15:32 #2
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    mackrackit
    mackrackit is offline SuperMod
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    Default Re: LCD error. letters are shifting each water valve is ON

    it is possible transmissed an electronic magnetic area. how can i solve this problem.
    Yes, it is possible. I sometimes have this problem around welders and plasma cutters. The solutions range from good grounding to putting the MCU in a metal enclosure ( think Faraday cage ).
    Dave
    Always wear safety glasses while programming.
  3. - 23rd July 2012, 15:41 #3
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    Default Re: LCD error. letters are shifting each water valve is ON

    thank you friend for your help. i am working on it.
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