Dennis Crawley wrote:

>Hi all,
>On  Feb 10 2002, Mike Rigby, Edson, Wouter, Dwayne, Jinx(don't you need a
>haircut?=:), and many others, have proposed this challenge: to desing a 4x4
>matrix keyboard and LCD using only one port= 8 pins. Well, I have read for
>fun that "three-days-ping-pong", and finally "the curiosity killed the
>cat", so following Mike Rigby design I've arrived to a modest solution
>Features:
>1.- Only 7 pins and lets free RB0.
>
5 or even 4 should be enough.
Stef

>
>

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