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Gregory Nutt spudarnia at yahoo.com> First all sorry top-posting... Hmmm... I did that too. > NuttX also have support to dot-matrix displays, see this "mp3 player" running NuttX: > > http://www.youtube.com/watch?v=A39rsIf07AA 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. (That attached PNG came from here: http://nuttx.svn.sourceforge.net/viewvc/nuttx/trunk/NxWidgets/UnitTests/CButtonArray/cbuttonarray.png?view=log) 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. Greg -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20120430/91b032a4/attachment.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: cbuttonarray.png Type: image/png Size: 35615 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20120430/91b032a4/attachment.png>