Rochester, 19 augustus 2005.

As I mentioned already numerous times, I agree that you should get
away from the 16F84A as soon as possible. However, I disagree that
there is too little memory to fit every letter of the alphabet in
it... Even without compressing it, you only need five words for one
letter. Assuming you have the full 128 character 7-bit ASCII set, that
means you still only need 640 words. The remaining 384 words should be
enough for many other applications: an RS-232 interface receiving said
characters, something that displays a text letter for letter, or even
a system that reads a keyboard and outputs the typed character to the
display.

But maybe you have some application that I am unaware of that does
need more memory. But fitting the alphabet in it shouldn't be
limiting. 25-30mA is pretty good, for a LED matrix of 5x7. My most
economical single LED takes at least 5mA.

Greetings,
Maarten Hofman.

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