Arduino Attiny85:

Arduino Attiny85:

The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (of course a bit less powerful). Through the 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.

Features:

8KB program memory (~2KB is used by bootloader)
512 byte EEPROM
512 byte SRAM
Internal USB support
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)
PWM on 3 pins (more possible with Software PWM)
ADC on 4 pins
I2C and SPI (via USI)
Power LED and Test/Status LED
Power via USB or External Source – 5v or 7-16v (automatic selection)
On-board 150ma 5V Regulator
Low-power consumption

Product details:

The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (of course 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.

Documents:

 datasheet
Required files for Arduino IDE support