9fans archive / 1995 / 04 / 49 /    prev next

From: Protius tjohnson@glo...
Subject: question about PC's
Date: Thu, 6 Apr 1995 15:35:16 -0400

rob@pla... said:
>they generate raw quadrature, but modern machines use serial input.
>the company that makes them sells a serial version, but only two buttons
>work.

It should be possible to take a $10 "modern" mouse, gut it, and feed the
raw quadrature and button switches from the DMD mouse in where the real
buttons and optical encoders used to be.  If you use opto-couplers, it
wouldn't even be a different component (a photo-transistor).  You might
need a seperate power supply for the +5 volts though.

Here is the pinout off of my DMD mouse:
1: +5 volts
2: vertical phase 0
3: vertical phase 1
4: horizontal phase 0
5: horizontal phase 1
6: ground
7: middle button
8: right button
9: left button

-Tommy
tjohnson@cob...