The Digispark is an Attiny85 based microcontroller board similar to the Arduino line, only cheaper, smaller, and less powerful. I had the Arduino Leonardo and almost got the Teensy for its small size. But before I checked out the Teensy, I chanced upon the Digispark and decided to get it for some USB device emulation work.
|Digispark Technical Specifications|
|Clock speed||16.5 MHz|
|Storage||8K Flash Memory (about 6K after bootloader)|
|Power|| USB or External Source – 5V or 7-35V (automatic selection)|
On-board 500mA 5V regulator
|Features|| + Built-in USB (and serial debugging)|
+ USB device emulation
+ 6 I/O Pins
|IDE||Arduino IDE 1.0+ (OSX/ Win/ Linux)|
The specifications are not spectacular but it does USB device emulation properly. Will be great if I can hook up a microSD storage to it!