The Circle Edge LED TinyShield allows some cool and easy LED indications using only six I/O signals. This board includes 21 LEDs are mounted around the outside of the board to form a full circle and is designed to be placed on the top of the TinyShield stackup. 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