reuse your old palm pda as an lcd display

palm lcd display
if you’ve got an old palm device (palm, visor, clie, workpad), you can use it as an lcd output device for your pc or robotics project.  the open source software palmorb runs on palm os 2.0 or above and makes your old palm pilot emulate a Matrix Orbital LK204-25 LCD.

this is great.  i’ve got an old palm 3 collecting dust that can get some use now.  there are some code samples on the site, or you can use lcd4linux or lcdsmartie to communicate with your new lcd device.  thanks for the link ray.


  1. hac says:

    heres the mod i maade the 1st time i learned about this program from bit-tech!
    it just wasnt on yet coz i havent made the circuit board for the palm to be self charging. it was about a month ago so its ok now!

  2. Ethan Zonca says:

    If you want to use your atx power supply for your palm and you have a car adapter for your palm, then you can just connect molex 12v to the terminals on the car adapter and get the exact ammount of voltage you need for your palm.

  3. dave says:

    Do you have any support for this peogram i am having trouble getting it to detect my palm m100

  4. Got it working with the Palm Zire…

    I bought the Zire because it was cheaper than buying a new remote control for my TV… And now I can use it as an extra screen – Sweet.

  5. kasemodz says:

    has anyone figured out how to open a m105 or any palm? My palm has these wierd screws that look like they are riveted or something.

  6. ryan says:

    My palm IIIxe just has regular small watch screws, but I can see what you mean on my old Zire 21, they’re the 5-point star type screws. If you look hard enough you can find them. Try using a small phillips head, or even a flathead might work. Don’t be afraid to destroy the case, it’s not like your going to need it.

    As for using molex connectors, what about making a small resistor board to take those 3.3’s down to 3? Radio Shack ftw.

    For those who have got it working, is the display landscape or normal? I mean, if you were to mount the palm in your case, would it be sideways or upright? If sideways, which side up?

  7. dave says:

    i have those same scrwes on mine i smashed it open make sure you smash at the part with no buttons and dont smash hard :)

  8. dave says:

    i have those same scrwes on mine i smashed it open make sure you smash at the part with no buttons and dont smash hard :)

  9. Hadak says:

    i have an old treo300 (sprint’s old pda phone). i’m looking to go a step up on it. i broke the usb connector off the board (whoops!) so i dismantled it and pulled the screen out.

    i want to figure out how to soldier leads on to the connector on it to turn it into a screen *without* having to use the rest of the pda. is this possible? any hints/clues?

  10. Hotoru says:

    How about the *reverse*? Anyone know if there is an adaptor that will let you hook up your palm to an LCD monitor without use of a computer?

  11. John says:

    I’m running on a palmIIIc using LCD smartie and and the other palmorb version which gives you a 8X20 display and pretends it’s a 4X40. There is also a plugin from someone called limbo which allows you to scroll part of a line instead of the whole thing which is needed so the because LCD smartie will scroll a two lines instead of one. I can’t remember what the site was but i found it while browsing around on the LCD smartie website.

  12. Ian says:

    hey, if you want to do this on a pocket pc use this app to emulate the palmorb :)

  13. Ian says:

    sorry forgot link

  14. my palm burned out, but the screen is in perfect condition (320×320 w/16-bit color).. I wonder if its possible to wire directly to the screen somehow?

  15. Cory says:

    i have a sony clie peg-sj22 and i cant get this to work..but, i’ve been trying to find a way to use my sony clie as another monitor.

    Theres a mod out there but its for pc pilots with windows mobile running on them..
    if anyone can think of any cool hack/mods to get my palm pilot in use as another monitor, it would be highly appriciated

  16. bumsk says: :(
    HIT.ME.BACK at odindutton[at]gmail[dot]com
    thanks in advance!

  17. frank Hu says:

    We are a seller of PDA accessories,also includes LCD screen,if some one needs to buy this product at large quantity,please contact me!

  18. Eric says:

    need palm spare parts, pls contact me.

  19. Eric says:

    and my email/msn,thx

  20. Rcardo Berretta says:

    Hello, wanted to ask if anyone has information on the display (connection and communication) of the Palm Zire 21

  21. Ricardo Berretta says:

    I need data from the LCD Palm Zire, let me reuse the LCD in a draft ECG
    Would need the connector and data communication protocol or some data as minimum to start a crawl.

  22. Walrus23 says:

    Try using Pebbles PC for palm OS, this allows you to control an almost unlimited amount of PC apps, and you could set it up with interface software to control lights and stuff like that. it doesnt have a display, really just has buttons, but the graffiti pad can be used as a keyboard. has an option for total control, using screen as touchpad mouse and graffiti pad as keyboard. you’ll have to google it as i cant remeber URL

  23. Sean says:

    I’d like to connect my palm zire 31 motherboard to a 12″ touchscreen. Can anyone advise how this can be done?

  24. aXis says:

    On my old m100, I pulled open the case and ran some wires from the battery terminals to two of the case screws. This allowed me to access power using an external sleeve or cradle.

    I was thinking for this project I could get a USB serial adaptor and make a little dock, taking the USB 5v and then supplying a regulated 3v to the cradle.

  25. Jackman says:

    This has a lot of potential. Does anyone know where to find the old PalmOS SDK (for Windows and/or Linux)?

  26. Palm says:

    I have many older palms used vx Ibm c3 c500 etc and brand NEW, if your looking for any parts or ac adapters , modems , etc I have those also.
    You can email me at
    Just put palm in the title thanks

  27. Brad says:

    has anyone had any luck running this on os x? Is it possible to do this on an itouch?

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