Robodo Digispark ATTiny85 USB Development Board Digistump Mini Arduino Comp Electronic Components Electronic Hobby Kit

"Product Description: The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (of course a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this board is a great way to jump into microcontroller electronics. Product Specs: Support for the 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 gram actively communicates over USB, otherwise you can use all 6 even if you are gramming 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)"