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Mark III LCD's — Parallax Forums

Mark III LCD's

FlyingFishFingerFlyingFishFinger Posts: 461
edited 2005-07-08 21:06 in BASIC Stamp
Hello!
Does anyone know how to interface the LCD's from the Mark III Robot Store to the Basic Stamp? They don't provide much information and that what they do provide has me thoroughly confused. The LCD's seem to be from Hitachi... here's a link to one of them: http://www.junun.org/MarkIII/Info.jsp?item=36
Thanks!

Comments

  • LarryLarry Posts: 212
    edited 2005-07-08 03:45
    This will work.

    http://www.eetasia.com/ARTICLES/2002MAR/2002MAR01_ICD_ID_MSD_AN.PDF

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  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-07-08 03:51
    Hello,

    ·· The datasheet for the display on the product page has all the information about the display you could possibly need for it.· As for interfacing to the BASIC Stamp, we have example code and schematics in our StampWorks manual for this.· Although the display is a slightly different size, it will still work in a similar manner.

    http://www.parallax.com/dl/docs/books/stampworksmanual.pdf

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • Philip GamblinPhilip Gamblin Posts: 202
    edited 2005-07-08 03:53
    Go to the Parallax website. find the downloads link at the top of the screen. Click it. Scroll down the page and find the 2 X 16
    hitachi compatible parallel LCD. That should have what you want.
  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-07-08 04:07
    Ok. thanks.
    It's just that I've never used any type of LCD before, but I should be able to work this out
    Great forums, by the way
  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-07-08 04:14
    Since it's a parallel LCD, I guess there's no way around using 7 I/O pins unless I use a serial to parallel converter, right, Good thing I have a BS2p40! smile.gif
    Thanks for the help
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-07-08 04:18
    Hello,

    ·· You can get away with 6 pins by tying the R/W pin low.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-07-08 04:28
    OK. I guess this closes the thread, that's about all the info I'd need
    Thanks guys
  • LarryLarry Posts: 212
    edited 2005-07-08 04:59
    don't go away so soon. There are lots of ways to deal with the "too many pins"problem.

    Myke Predko has a nice description of a 2 pin interface using only a 74ls174 chip.
    http://www.myke.com/lcd.htm

    Peter anderson offers a preprogrammed PIC chip that turns your LCD into a serial device that uses only one Stamp pin. Just 5 or six bucks. You supply your own breadboard or Ratshack proto board.Works well.
    http://www.phanderson.com/

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  • FlyingFishFingerFlyingFishFinger Posts: 461
    edited 2005-07-08 21:06
    Hm, I had a look at Peter's site, that seems a pretty good idea, I also noticed he's selling some of those on Ebay right now...I think I might use that.
    But I was just looking for information anyway, my robot is not quite ready for an LCD, still polishing up the drive train.
    I thought I'd get some info though because it will probably be ready in a couple of weeks (besides, my being 14 year old guy does have the disadvantage of slight knowledge deficiency...)
    Thanks
    Rafael
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