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 Regulator.
Built-in USB.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 .

Technical Details

Size (LWH): 3.2 inches, 2.1 inches, 0.1 inches
Product Details
Product Dimensions: 3.2 x 2.1 x 0.1 inches
Shipping Weight: 0.02 pounds (View shipping rates and policies)
ASIN : B00EIANTEC