July 2, 2014, 2:34 pm

I picked up a 10inch captouch display from Chalkboard electronics, the display comes with a HDMI converter board, and the captouch interfaces over USB. Overall this makes it an easy platform to play with. I rigged it up to a Raspberry Pi (because it can do native, X-less OpenGL woohoo!). Here’s a quick video:

The display and Pi were mounted on a piece of PET plastic like so:

Random notes for later:

Chalkboard driver info:

http://www.chalk-elec.com/?p=1592

OpenGL ES without X Windows:

Using OpenGL ES 2.0 on the Raspberry Pi without X windows.

Checking multitouch from the commandline on Linux:

https://wiki.ubuntu.com/Multitouch/Testing/CheckingMTDevice

Source for above?:

https://github.com/rydberg/mtdev/blob/master/test/mtdev-test.c

mtdev_idle

https://gitorious.org/multitouch/mtdev/source/309df849b8ad3772b912d498eacda9f38a6e4f1e:src/iobuf.c

gl tutorial: http://www.arcsynthesis.org/gltut

On rounded rectangles and buttons:

http://www.uiandus.com/blog/2009/7/26/realizations-of-rounded-rectangles.html

http://ux.stackexchange.com/questions/11150/how-do-rounded-corners-affect-usability