MINI ATtiny85 USB Development Board for Arduino

• Support for the Arduino 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).
• Size: 1.8cm x 2.6cm .

Package Included: 

• 1 X USB Digispark Kickstarter ATTINY85 Miniature USB Development Board for Arduino