HELP: 16 X 2 lcd interfacing not woking with at89c52

Discussion in 'General Electronics Chat' started by lamhey, Apr 23, 2011.

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  1. lamhey

    Thread Starter New Member

    Apr 23, 2011

    i am a newbie in this forum, as well as in electronics project. i have been working in a digi-lock project, the source of which has been taken from

    i am using at89c52 microcontroller. the problem im facing here is I can't make the lcd display working. ive tried with the simplest ones, but nothing is showing in the lcd.

    Supply in the microcontroller seems above 5 volt without joining the lcd, but below 5 volt while joining the lcd. im wondering if the voltage drop is causing for the problem with the lcd?

    im really confused and disappointed already.

    pls help me....plssssssssssss
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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