[simpits-tech] To gene or any other programmer

[Gene Buckle]

> problems with toggle switches - most of the matrixes i've looked at is
> designed for momentum switches (connect and release), and will losse a
> hole row if you have a toggle in that row...
>

Stig, that's why big input matrices like EPIC and the 0/256/0 Phidget use
diodes.  If you check out
http://www.simpits.org/fileproc/files/ematrix.png you'll see what mean.
By using the diodes as illustrated, you don't get the vanishing row
problem.  You could close all 256 switches and still accurately
interrogate the state of an individual switch.

g.