In November I saw a cool device at an event.
The device was presented as an unobtrusive way to interact with technology.
Unlike usual touch screen devices, it looks like a wooden plank
that is sensitive to touch and uses a LED pixel matrix behind the wood to visualize icons and text.
Since the device wasn't available for sale, I wondered how easy it would be to
DIY a (much) simpler version that I could use for some of the same tasks.
