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.

• Support for the Arduino IDE 1.0+ (OSX/Win/Linux)

• Power via USB or External Source

• Onboard 5V Regulator

• Built-in USB

• 6 I/O Pins

• 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