<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt">> First all sorry top-posting...<br>
<br>
Hmmm... I did that too.<br>
<br>> NuttX also have support to dot-matrix displays, see this "mp3 player" running NuttX:<br>> <br><a href="http://www.youtube.com/watch?v=A39rsIf07AA" target="_blank">> http://www.youtube.com/watch?v=A39rsIf07AA</a><br>
<br>
I'm not certain, but I don't think that this example is using any of the
NuttX graphics facilities. I am not sure what he is doing, but the
fonts don't look familiar (NuttX supports 17 different Helvetica and Times Roman
fonts) and the drawing certainly does not come from Nuttx. I don't have
any good demos of the graphics from NuttX but they are all rendered as
"3-D" images. I've attached the output of the button array unit test to
give you a better idea of what I mean.<br>
<br>
(That attached PNG came from here:
http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/NxWidgets/UnitTests/CButtonArray/cbuttonarray.png?view=log)<br>
<br>
This button array, by the way, can used with a touchscreen as an
on-screen keyboard (with the output going to an edit box). "Widgets"
like this have already been used to implement the complete GUI for a
medical device.<br>
<br>
Greg<br>
<div style="font-family: arial, helvetica, sans-serif; font-size: 12pt;"> </div> </div></body></html>