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Author Topic: 16x2 LCD display problem only one line visible  (Read 631 times)
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hi everyone i m new to arduino and i am trying to connect the arduino uno to a 16x2 lcd display i connected everything according to the schematics but when adjust the contrast potentiometer only the second line turn black or fades the first line stays green.
when i try to display text using arduino test codes all i get are random pixels in the second line.
please help me and give suggestions on how to troubleshoot the display. smiley-lol

Western New York, USA
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You should consider posting a photograph of your connections and a copy of the code that you used.  Did you include the lcd.begin() statement?  Also -  your display is upside down.


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