USB Development Board
Thisis 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 .Here are the specs:Support for the Arduino IDE 1.0+ (OSX/Win/Linux)Power via USB or External Source - 5v or 7-35v (12v or less recommended, automatic selection)On-board 500ma 5V RegulatorBuilt-in USB6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB)8k Flash Memory (about 6k after bootloader)I2C and SPI (vis USI)PWM on 3 pins (more possible with Software PWM)ADC on 4 pinsPower LED and Test/Status LED