Atiny 85 DEV Board
The Atiny 85 DEV Board Development Board is similar to the Arduino line but cheaper.
It caters to projects that need a low IO pin count. If you need more pins but still small in size you could use the Arduino Nano as well.
The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (ofcourse a bit less powerful).
With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this board is a great way to jump into microcontroller electronics.
ATTINY85 USB Development Board
Support for the IDE 1.0+ (OSX / Win / Linux)
Power via USB or External Source – 5V or 7 -35V (automatic selection)
On-board 500ma 5V Regulator
Built-in USB(and serial debugging)
6 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 pins
Power LED and Test/ Status LED (on Pin0)
1 x Development Board