The down-side appears to be with these HD44780 Blue/White displays refresh rate. Any scroll rate faster than about 500ms (per screenfull) leaves traces/shadows like crazy.
As Mark says the problem is with the display technology not the code. If your code were able to make it scroll faster then the display problem would be worse.
would a VFD or OLED display not show this artefact so much?
Doc,There does not seem to be any code in the repository: http://code.google.com/p/phi-big-font/source/browse/I also tried a git clone and got an empty repository.There are download images but the code does not appearto be in the repository.--- bill
Might be a glitch. Here is the download:http://code.google.com/p/phi-big-font/downloads/detail?name=phi_big_font%2020120322.zip&can=2&q=#makechanges
Quote from: liudr on Nov 20, 2012, 06:01 pmMight be a glitch. Here is the download:http://code.google.com/p/phi-big-font/downloads/detail?name=phi_big_font%2020120322.zip&can=2&q=#makechangesYes I saw the zip download images.But it looks like there is not any code in the actual git repository.--- bill
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