ATTINY85 Digispark kickstarter miniature for Arduino usb development 1.Support for the Arduino IDE 1.0 + (OSX/Windows/Linux). 2.Power via USB or External Source or 7-16 v to 5 v (automatic selection). 3.The On - board, 150 ma 5 v Regulator. 4.Built - in USB and serial was debugging). 5.6 I/O Pins (2 are informs the for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB). 6.8 k Flash Memory (about 6 k after bootloader). 7.The I2C and SPI (vis USI). 8.PWM on 3 pins (more possible with Software PWM). 9.The ADC on 4 pins. 10.The Power LED and the Test/Status leds. The Specs: 1.Support for the Arduino IDE 1.0+ (OSX/Win/Linux). 2.Power via USB or External Source - 5v or 7-16v (automatic selection). 3.On-board 150ma 5V Regulator. 4.Built-in USB (and serial debugging). 5.6 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). 6.8k Flash Memory (about 6k after bootloader). 7.I2C and SPI (vis USI). 8.PWM on 3 pins (more possible with Software PWM). 9.ADC on 4 pins. _x000D_