A few months ago, there was a short discussion about other methods of
keyboard scanning, I've gone back and re-read the material from the previous
posts, but I am not sure I follow exactly how to do it - including proper
coding and wiring - now, the way I am doing this is having 1 pic handle all
keypad entry, and another query the first on a regular basis for key info.

The keyboard pic is a 16F876 w/ 28pins.  I am using 26 keys - I could have
just enough to handle the configuration, but I would like breathing room to
make this work incase I need to add buttons in the future.

If someone could explain a low pin keyboard scan method to me in a clearer
manner, I would greatly appreciate it - including proper wiring, as long as
I can figure out C code implementation, I should be ok - which basically
means I really need to understand how it works.

People who talked about it before on the list included:

Carey Fisher and James Newton

Any help would be most appreciated!!

-Tony

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