• 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)
• Weight: 4g

Package included:

• 1 x Development Board