Digispark Attiny85 USB-A Arduino Compatible

The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, the Digispark is a great way to jump into electronics, or perfect for when an Arduino is too big or too much.
 
Note: The Digispark is shipped fully assembled except for the two included and easy to solder headers.