It sounds easy till you actually try it.

And with this NKK display, if you want to change anything, you have to redraw everything.
Change one number and it has to remember everything else that was on the screen too.

Using a 16F876A doesn't help much, with a maximum array size of 96 bytes, you can't just hold the entire display in a nice neat buffer to modify and resend when needed.

I'm playing with the 4x10 mode now. Much less RAM used.
But still haven't got my rows and columns figured out yet.
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