Results 1 to 5 of 5

Thread: Mouse + Encoder Troubles (detent num. difference)

  1. #1
    Newbie
    Join Date
    Aug 2005
    Posts
    26

    Mouse + Encoder Troubles (backspin)

    Hi! I've been lurking here and reading about rotary encoders, so I decided to try and build a custom knob with one. It kinda worked, so here I am asking for help!

    I got an old Microsoft PS/2 wheel mouse (with ball) and attached an alps encoder from a broken monitor I had (it had a wheel that could be turned and pushed to configure it).
    After replacing the scroll wheel encoder with the one from the monitor, it was recognized, and I was able to use it like a regular scroll wheel...almost.
    The problem is that the encoder only works properly if I don't move it too fast.
    Moving it at a reasonably quick rate results in a sort of jittering -- like if I was moving the wheel up and down quickly. Sometimes it goes backwards, too

    (edit: I now know that the term is called 'backspin')

    I think this has something to do with the resolution of the new encoder being much greater than the old one (many more detents).

    How do I fix it? Is there any way to only have it read every other click or something like that?

    Help is appreciated


    EDIT:
    Clarification: Switching the wires won't work, I tried. The encoder functions perfectly as long as I turn it relatively slowly.

  2. #2
    Newbie
    Join Date
    Aug 2005
    Posts
    26
    Bump for great justice. I really need help with this

  3. #3
    Low Bitrate
    Join Date
    May 2004
    Location
    UK
    Posts
    74

  4. #4
    Newbie
    Join Date
    Aug 2005
    Posts
    26
    Quote Originally Posted by Tony G
    That's interesting, but it doesn't address my problem...

  5. #5
    Low Bitrate
    Join Date
    May 2004
    Location
    UK
    Posts
    74
    Hi again,

    Just a couple of quick questions:

    1) What encoder have you got?
    2) Which encoder are you replacing on the mouse - the scroll or X-Y encoders? - I used the scroll.
    3) Have you tried another mouse PCB?

Similar Threads

  1. Quest for 800x480
    By ptk in forum LCD/Display
    Replies: 451
    Last Post: 01-04-2010, 10:42 AM
  2. Stealth OEM install in MR2 Spyder - Magazine coverage!
    By silencery in forum Show off your project
    Replies: 95
    Last Post: 07-31-2008, 04:15 PM
  3. PS2 3 Button(Rotary Wheel) Mouse Properties?
    By nFiniteTuning in forum Input Devices
    Replies: 4
    Last Post: 03-12-2005, 09:43 PM

Bookmarks

Posting Permissions

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