The TinyShield 7 Segment Display Board contains two seven segment LEDs (Red LEDs) that can be set over the I2C (thus saving signals to do other tasks) by using a Semtech SX1506 I/O expander. Each of the segments including the decimal indicator can be individually selected, and a library is provided to make it extremely easy to use.
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