Pic16f690 and LCD

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  1. - 17th May 2010, 23:26 #2
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    BobK
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    Hi Ross,

    Take pin 3 of the LCD and connect it to the wiper on a 5K ohm potentiometer (pot) and then tie one side of the pot to ground and the other side to + 5volts. This controls the contrast of the display. Adjust the pot until you can see the characters. Once you know what resistance gives you
    the correct view you could read the pot's resistance then just substitute a 1/2 watt resistor with the desired resistance OR you can just leave the pot in the circuit.

    HTH,

    BobK
    Last edited by BobK; - 17th May 2010 at 23:28. Reason: Just another idea.
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