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Guide Make your own USB LCD controller!

Discussion in 'Modding' started by ch424, 23 Jun 2006.

  1. Wayneeboy

    Wayneeboy What's a Dremel?

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    have you checked to see what com port your pc has assigned to it ??
    mine is com 4
     
  2. PHermansson

    PHermansson What's a Dremel?

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    Seems like a good idea. The LCD looks like it started correctly, so the problem is probably with the PC-Pic communication. Check com-port setting as Wayneeboy said, also check cabling and circuit on the usb-side.
    And don't try what I did, connecting the switch to Vusb. Very strange things happen when you push that button... :)
     
  3. ch424

    ch424 Design Warrior

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    The LCD has not started correctly. Check the connections between the PIC and the LCD. Also, does windows recognise the device when you plug it it?

    Wayneeboy, can we have photos of yours in action? What firmware and PCB layout are you using? Does it work nicely?

    Patrik, a wiki is probably a good idea. I'll start work on that in the next couple of days...

    Thanks

    ch424
     
  4. PHermansson

    PHermansson What's a Dremel?

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    ch424: Good, I'll see forward to that.
    Might be mistaken about the LCD, thought the squares indicated correct init. Maybe the contrast setting is wrong?
     
  5. Wayneeboy

    Wayneeboy What's a Dremel?

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    Last edited: 3 Apr 2007
  6. bamboo

    bamboo What's a Dremel?

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    windows not recognise the device when you plug it. I start new today, hope my PIC's still work..


    Thanks all.
     
    Last edited: 8 May 2007
  7. bamboo

    bamboo What's a Dremel?

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    Just done another, but LCD don't display anything. Can LCD dead? Or how to test LCD work or not.
    If LCD dead and i do right, dose windows still recognise ?.
    Thank you..
     
    Last edited: 8 May 2007
  8. SteveyG

    SteveyG Electromodder

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    Sounds like a programming problem or the PIC not running. Do you have any photos you can share of your board to eliminate the possibility of errors with your hardware.

    When programming, can you successfully verify the contents of the PIC?
     
  9. jensah

    jensah What's a Dremel?

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    Check if windows senses the USB port
    (<windowsbutton + Pause|break> and then devicemanager)
    If it senses it but not what it is = probably something to do with "VUSB" capacitor
    If it senses it and it got PID and stuff try the driver, download again in case of someting braiking in the transfer.
    If it won't even sense an USB thing = lots of reasons, check all wiring and double check it.
     
  10. simon_stz

    simon_stz What's a Dremel?

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    My prototype for SMD pic version:
    [​IMG]
    Nex week I'll buy the components
     
  11. jensah

    jensah What's a Dremel?

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    What software is that?
     
  12. Scorpia

    Scorpia What's a Dremel?

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    Looks awsome.

    have you made any of the boards?
    maybe look at adding some outputs for the unused pins so we can update the software and use the extra I/O.

    looks a bit hard to make at home though being bouble sided etc.

    Lots of build pics please.

    Scorpia
     
  13. simon_stz

    simon_stz What's a Dremel?

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    Hi.
    Is Eagle + Eagle 3D + POV Ray
    It has 6 GPOs (6 x smd led from old broken Cell Phone). I don't need more than 6 low power outputs. The board is single sided, but has 5 aerial cable (unconnected vias on the image, like this picture ).

    When I buy and solder components, I'll post photos :cooldude:
     
  14. Stonewall78

    Stonewall78 What's a Dremel?

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    Really nice 3D image but if you are going to do a SMT board why not do all the components that way? Also if you are doing a single sided board it will be easier to solder if you have the through hole parts on the none copper plated side.
     
  15. bamboo

    bamboo What's a Dremel?

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    I sorry for my stupid question last a few day made all people misunderstood :D
    This is cause my PIC don't work
    I still not Program for my PIC. LOL
    I will start to make Programmer tomorrow. I hope i can get help from all.
    Thanks all
    Thank Ch424
     
  16. bamboo

    bamboo What's a Dremel?

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    Update
    i unlucky :duh: and will be crazy :wallbash:
    I plug in and windows recorgnise it as CDC RS-232 Emulation Demo, i install driver, OK but result like this too [​IMG]

    I made PCB, sure connect PIC to LCD correct. :wallbash:
    PS: I don't know why always error when i programmer my PC
    This is Error
    Maybe i will wait for 2 week to get new PIC :duh:
     
  17. Wayneeboy

    Wayneeboy What's a Dremel?

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  18. Scorpia

    Scorpia What's a Dremel?

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    nhenhophach

    i also have a jdm type programmer,

    what im wondering is are the errors allways with the same numbers? or do the numbers change?

    I found with mine i could program it and it would error, so i would do it again and it would get further., i kept doing it until it got all the way to the end.

    might be worth a try. Also make sure any cables from the programmer to the pic are short, like 3-4cm if possible. also some of the software i was playing with i was able to slow down the programming which helped a bit.

    Also looking at the LCD it looks like the program isnt doing anything to it. so i guess with the error the pic isnt programmed properly. can you do a verify of the pic?

    Wayneeboy

    how was the usb programmer to contruct? i have been looking at different programmers to make. im thinking a ICD2 or pickit2 clone atm but im open to options

    ALso an anyone open and print proteus circuits? if so let me know as i found a pickit2 clone that i wouldn t mind having a go at but its got proteus 6 drawings.

    Scorpia
     
    Last edited: 12 Apr 2007
  19. Wayneeboy

    Wayneeboy What's a Dremel?

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    it was very easy to construct. since building the programmer ive got myself
    an IDC2 clone, but not used it yet
     
  20. simon_stz

    simon_stz What's a Dremel?

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    Only if you use an USB programer:

    Old versions of Winpic800 have compatibility problems with some USB Host controllers if they are Open Host type or OHCI type.

    Go [windowsbutton + Pause|break] and then devicemanager
    search for your USB host.
    If yoy see the word "open" or "OHCI" may you have an incompatible USB host.

    Solution:

    Try with newer version of winpic or try an USB PCI card with VIA or Intel chipset.

    You can program your pic in diferents computers.

    I use winpic800 with a USB PCI card because I have an incompatible mobo.
     
    Last edited: 12 Apr 2007
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