Has anyone tried a QVGA color display with a PIC?


Closed Thread
Results 1 to 5 of 5

Hybrid View

  1. #1
    Join Date
    Mar 2006
    Posts
    5

    Default Has anyone tried a QVGA color display with a PIC?

    I have a couple of applications that are using a 240 x 128 mono LCD display, that I would like to add a little color capability to.

    The Nokia displays are just a little to small.

    There are a lot of 5.7" 320x240 (QVGA) color displays out there that are available for under $100. Unfortunately, it appears that
    they are all controllerless.

    I have seen a couple of $400 solutions from Earth and Reach,

    http://www.reachtech.com/display/display.html

    http://store.earthlcd.com/ezLCD-004-...7&category=297

    but they are just a bit too pricey and full featured. All I need is the ability to do some line drawings and text in color.

    Epson makes some nice looking controller chips,

    http://vdc.epson.com/index.php?optio...=291&Itemid=99

    but they require a bunch of address lines to talk to them, so they would probably need a dedicated PIC as a co-processor. Before I
    embark on a month(or more)-long development project, I thought I would check and see if any of you guys had been down this path
    already and knew of a better way.

  2. #2
    Join Date
    Jul 2006
    Location
    USA
    Posts
    26


    Did you find this post helpful? Yes | No

    Default

    Optrex has a sweet TFT that can be controlled by an SPI interface:

    http://www.optrex.com/products/partd...GD030J-MLW-AJN

  3. #3
    Join Date
    Mar 2006
    Posts
    5


    Did you find this post helpful? Yes | No

    Default

    Thanks for the quick reply.

    There seem to be a few 3.5" and smaller displays, with 320x240, or even better resolution. It would seem that it would be not much harder to make a 5.7" version. I guess there is just not a large application out there demanding one yet?

    I might consider getting one of these to fool around with, but to replace my existing display, I'll need something larger. The 5.7" is just about right, and there seem to be about a half dozen or so manufacturers offering them, in both TFT and CSTN, just none with an interface that I'm comfortable with.

  4. #4
    Join Date
    Jul 2006
    Location
    USA
    Posts
    26


    Did you find this post helpful? Yes | No

    Default

    People tend to use graphics controllers or standard video with the larger screens.
    The Optrex 3" is the biggest one I know of that can be used with just an SPI
    interface to control it (and write image data).

  5. #5
    Join Date
    Mar 2006
    Posts
    5


    Did you find this post helpful? Yes | No

    Default

    I found a display for around $200 that looks like it might be the Holy Grail for 8-bit Pic applications. We're going to order a couple to play with. I'll let you know how it turns out.

    "Utilizing Human-Machine Interface (HMI) experience, the LMR67802 is created to reduce hardware and software re-design efforts. It lets users drive a TFT display with the well known 8051 bus. The 5.6” TFT module is particularly suitable for low-to-mid volume industrial applications and for companies considering an upgrade from monochrome to TFT as the HMI of LMR67802 is compatible with controllers of monochrome displays. Touch screen version of the display is also available (model no. TSR67802)."


    http://www.densitron.com/Displays/content.aspx?Id=1376

    http://www.densitron.com/Displays/content.aspx?id=638

    http://www.densitron.com/Displays/content.aspx?id=230

    http://www.densitron.com/Displays/to..._displays.aspx

    http://www.farnell.com/datasheets/92519.pdf

Similar Threads

  1. SMS via pic
    By kenandere in forum GSM
    Replies: 15
    Last Post: - 10th March 2010, 10:00
  2. Replies: 67
    Last Post: - 8th December 2009, 02:27
  3. HSERIN & Interupts (aka controlling PIC programs from a remote PC)
    By HankMcSpank in forum mel PIC BASIC Pro
    Replies: 16
    Last Post: - 17th June 2009, 14:46
  4. pic to pic ir link versus wired link : help please anyone
    By xnihilo in forum mel PIC BASIC Pro
    Replies: 13
    Last Post: - 30th May 2008, 21:01
  5. Serial Pic to Pic using HSER
    By Chadhammer in forum mel PIC BASIC Pro
    Replies: 5
    Last Post: - 11th March 2005, 23:14

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts