Feature:
1. Power via USB or External Source 5v or 7-35v (automatic selection)
2. On-board 500ma 5V Regulator
3. Built-in USB (and serial debugging)
4. 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)
5. 8k Flash Memory (about 6k after bootloader)
6. I2C and SPI (vis USI)
7. PWM on 3 pins (more possible with Software PWM)
8. ADC on 4 pins
9. Power LED and Test/Status LED (on Pin0)
10. Size:26.4*18.8mm Package contain:
6PCS Attiny85 Digispark Kickstarter Universal Micro USB Development Board Module
Power supply via USB or external power supply 5V or 7-16V (12V or lower recommended) .On-Board 500mA 5V Regulator;ADC on 4 pins; Power LED and Test/Status LED (on Pin0).
Support for the IDE 1.0+ (OSX/Win/Linux).
I2C and SPI (vis USI). PWM on 3 pins (more possible with Software PWM).
8k Flash Memory (about 6k after bootloader),I2C and SPI (see USI).
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.