Homebrew PCBs

On Wed, 29 Jun 2005 07:12:09 +0200, mikegw20 <mikegw20@...> wrote:

>
> No, I refer to what we would call an optical mouse, no ball only a
> light.  Ripping the guts out of one would be difficult but strapping a
> small mouse alongside an axis such that in moves in harmony OR pointing
> the sensor at a wheel connected to a shaft.  Both would give the
> distance traveled via the ps2 port.  There are a few designs around to
> interface a micro controller to the ps2 port.  Maybe in the guts of the
> mouse there is a quadrature output avoiding the need for the ps2
> interface.
> To me it seems an easy way to get around the difficulty of producing
> high resolution graduated slides (the kind that would otherwise be got
> from an inkjet printer)
> Mike


In those mice is basically a low-res camera, like 16x16 dots or so.
Stripping the guts would not be too hard, the buttons might be useful for  
zero switches.

ST