Mouse schematic?

Discussion in 'Electronic Components' started by Mickey, Jun 2, 2004.

  1. Mickey

    Mickey Guest

    Does anyone have a link to PC mouse schematic?

    Preferably Genius.

    Doeas anyone knwo any links about optical signal detection (encoding) like
    in mouse?
     
    Mickey, Jun 2, 2004
    #1
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  2. "Mickey" <> wrote in message
    news:c9k3dp$gv$...
    > Does anyone have a link to PC mouse schematic?
    >
    > Preferably Genius.

    You are not generally going to get a schematic of a commercial mouse.
    However there are several 'example' schematics from the manufacturers of
    chips used in mice. If you look at:
    http://ww1.microchip.com/downloads/en/AppNotes/00519c.pdf
    This is a complete application note, on how to build a mouse using a PIC,
    including the circuit diagram.

    > Doeas anyone knwo any links about optical signal detection (encoding)
    > like in mouse?

    Any number of _millions_. Do a search on 'quadrature encoders'. There are
    about a dozen notes on decoding quadrature signals using either hardware or
    software on the MicroChip site alone. HP, have a set of notes for their
    hardware decoders. Have a look at:
    http://www.lintech.org/comp-per/05MS.pdf
    which gives a 'history' of th mouse, and the circuit for a basic decoder.

    Best Wishes
     
    Roger Hamlett, Jun 2, 2004
    #2
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  3. Mickey

    Mickey Guest

    Thanx.
     
    Mickey, Jun 2, 2004
    #3
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