Tuesday, January 25, 2011

LCD doubt

While I was making the program for LCD I figured out that the accuracy of LCD is pretty low. If I make the program dispaly "tanmay" it shows "vounmay" and for "abcd" it was showing "abcd" in one blink and "afgf" in another and also random charcters some time. Has anyone else also been experiencing something and what could be the possible error?
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4 comments:

  1. UnknownJanuary 26, 2011 at 5:44 AM

    Most of the problems I've encountered with HD44780 have been due to incorrect delays. Can you check once again if you're giving the right delays?

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  2. KDJanuary 26, 2011 at 5:45 AM

    Well, the problem may be that u might not have connected the pins orderly.. i mean u might have skipped a pin or so....

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  3. Aman GuptaJanuary 26, 2011 at 5:51 AM

    I also got this type of problem. This is due to either delays Or maybe due to connection problems e.g. your wires might be touching.
    Precisely the problem I faced - When I connected my circuit and run the batch file it was displaying my name correctly but in between two of the wires got in contact and the name was truncated to just "AM".

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  4. tanmay_vermaJanuary 26, 2011 at 9:07 AM

    i had changed the delays i was varying it and checking but in my end code i kept the delay to be 1000 and it flashed my name 2-4 times after which distortions started coming and name won't re-appear at all. Connections were hundred percent right but yeah maybe wires shorting maybe one of the reasons. But still initial 2-3 times the name was coming always so that would mean wires may also be fine.

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