The Circle Edge LED TinyShield uses only six I/O signals to create a wide variety of LED indications. This board includes 21 LEDs that are mounted around the outside of the board to form a full circle. It's designed to be placed on the top of your TinyShield stack. The LEDs are arranged using Charlieplexing, a technique that allows 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