LCD Question

Discussion in 'General Electronics Chat' started by Dritech, Jun 1, 2012.

  1. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
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  2. MrChips

    Moderator

    Oct 2, 2009
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    The code is likely to be the same.
     
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  3. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
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    Thanks for your fast reply. So all i have to do is just plug it, right?
     
  4. nsaspook

    AAC Fanatic!

    Aug 27, 2009
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    It should work just fine but some of the clone controllers are slower than others (compared to a good HD44780 clone) so the delays might have to be tweaked if the setup and hold time were optimized to a faster chip.
     
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  5. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
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    ok thanks for your replies
     
  6. t06afre

    AAC Fanatic!

    May 11, 2009
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    I would think they function similar. But check the datasheet in case some of the pins has swapped place
     
  7. atferrari

    AAC Fanatic!

    Jan 6, 2004
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    Prior software, check if the hardware is compatible.

    1 - Check in your current module what pins are connected to backlight [anode / cathode], likely one of these combinations:

    15 A / 16 K (1 & 2 used for ???)

    1 A / 2 K (15 & 16 maybe used for DATA)

    Can you check that with a multimeter fitted with diode check function? That would be enough.

    2 - Check the datasheets offered and make sure which one matches your current layout.

    3 - Beware of "generics" where Optrex's (or whatever) is offered with the datasheet of Displaytech's (or whatever). I am afraid of this being the case. (204A-GC-BC-3LP / 204A-CC-BC-3LP?) Different results from a unique search...

    4 - If for any reason you go for other brands / models (old ones) prior all that check if pins in the PCB are numbered sequentially from 1 to 16 as in yours and not "16 15 1 2 3 4 5 6 ...". (This comes from when they added backlight capability to the initial 14 pins module designs).

    Be well.
     
    Last edited: Jun 2, 2012
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