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Electronics Truly MTC-C204DPLY 20x4LCD

Discussion in 'Modding' started by InSanCen, 29 Jun 2006.

  1. InSanCen

    InSanCen Buckling Spring Fetishist

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    I have one of these, and a Datasheet/Pinout to go with it.
    http://www.mpja.com/download/14194op.pdf

    What I need to know is what pins do I connect to the Parallel, and what Software do I use to Drive it?

    Any suggestions, Pointers etc?
     
  2. DougEdey

    DougEdey I pwn all your storage

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    It looks almost exactly the same as standard HD4 displays, check the mod guides thread for a guide on how to connect via USB
     
  3. ARM

    ARM Minimodder

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    Hi InSanCen,
    Didn't go through the datasheet in details, but if it's a HD44780 compatible (which most LCDs I know are), then you can use this wiring:
    http://lcdsmartie.sourceforge.net/circuits.htm
    and I use LCD Smartie. Go through the website and read the faqs before starting.
    Good luck with 'Truly'.

    ARM
     
  4. InSanCen

    InSanCen Buckling Spring Fetishist

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    Cheers, it looks like it is indeed a HD44780 compatible.

    Will be wiring it up tonight...

    It did come with a Parallel Cable soldered on, but it was so badly done I couldn't tell what went where (Wires were snapped etc), so I cut the cable off, and will do it again.
     
  5. InSanCen

    InSanCen Buckling Spring Fetishist

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    Okay.. not going with USB... I liked the Idea of running it off an internal header, no wires running out of the case.

    But, I can't program a PIC (No facilities, and no Know-how.. latter is easy to sort, but the former isn't)

    Ah well, out with the Parallel cable and a Soldering Iron. will have to get a metal hood for it, at least make it look half decent.

    EDIT:-
    Question.. I have the power already hooked up to a Molex (5v+GND)... if I apply power, will I get something to tell me it's working (Previous owner made a right mess of it, would like to know it works before I go solder happy). Does it have a self-test or initialisation that will show on the LCD itself?
     
  6. bigal

    bigal Fetch n Execute

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    1st and 3rd lines black, 2nd and third lines blank i think.... its been a while!
     
  7. ARM

    ARM Minimodder

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    Hi InSanCen,
    Quick test:
    Pin 1 to ground (molex black wire)
    Pin 2 to +5V (molex red wire)
    Pin 3 to ground (molex black wire).
    You'll get 1st and 3rd lines on (dark), 2nd and 4th lines off (as stated by Bigal).

    ARM
     
  8. InSanCen

    InSanCen Buckling Spring Fetishist

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    Thanking you muchly...

    Will test that tomorrow. If it's all tickety boo, I'll start making the mount & cover for it... if not, I'll see if I can get another on fleabay.

    Here's a peek at another bit of the case that it's going in.. that's a 172x150mm Papst... :D :eeek:

    [​IMG]

    Need to make a fan controller for it now...
     
  9. ARM

    ARM Minimodder

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    Hi InSanCen,
    If you don't have a circuit for the fan controller, I'd highly recommend one based on the LM317, which is easy to build. Here's one example:
    http://www.cpemma.co.uk/reg.html

    Have fun.

    ARM
     
  10. InSanCen

    InSanCen Buckling Spring Fetishist

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    You're Psychic :D :thumb:

    Link duly bookmarked... Although I think I will be using the MIC29502BT as this fan must have a large initial surge on it (The startup "whine" is amazing, like an Industrial belt sander, but in reverse... the pitch goes high-low-none)

    Have been playing with mesh to cover that fan (It's ripped one of my fingernails off with a slight brush, hate to think what it would do to my cat's).

    I will test the LCD, then go to Maplins for parts for the Fan Controller later today.
     
    Last edited: 6 Jul 2006

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