The Matrix LED TinyShield is a 6 x 9 grid of LEDs (54 total LEDs) that are individually addressable, which lets you scroll text, draw images and all sorts of other things. This TinyShield is compatible with the popular Arduino LoL Shield Library (Lots of LEDs Shield) created by Jimmie Rodgers.
The LEDs are arranged using Charlieplexing, which is a technique to allow for control of multiple LEDs using fewer I/O signals. Available with Red, Green and Amber LED color options.
To learn more about the TinyDuino Platform, click here
To see what other TinyShields this will work with or conflict with, check out the TinyShield Compatibility Matrix
TinyDuino Power Requirements