Display long text on the LED matrix

[riker09]

The 9x9 LED matrix can show static pictograms. Longer texts could be rendered by implementing a ticker. Kinda like the advertisments in some shop windows.

If there is a library for that is should provide the following features:

• configurable dimensions of the rendering area (Nuimo has 9x9)
• automatic conversion of text (can this be done with a font?)
• scrolling / adjustable scroll speed