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Topic: LCD top row only showing blocks (Read 6 times) previous topic - next topic

tina220800

I know this is a common problem and so I'm hoping its a simple fix.
my LCD is only showing blocks on the top row. I've had the program running perfect on this LCD and arduino before. I'v tried another LCD and the fault is the same so I know the LCD and Arduino are both fine. I tested each wire before connecting as I;m aware they can be dodgy. and my Live and neutrals are connected fine too. there has to be something I'm missing here.

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