The Digispark is an Attiny85 based microcontroller development board similar to the , only cheaper, smaller, and a bit less .With a whole of shields to extend functionality and the to use the familiar IDE the Digispark is a great way to jump into electronics, or perfect for when an is too big or too much.The Digispark is shipped fully assembled .Here are the specs:Support for the IDE 1.0+ (OSX/Win/Linux) via USB or External Source - 5v or 7-35v (12v or less recommended, automatic )On-board 500ma 5V Regulator-in USB6 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 )PWM on 3 pins (more possible with Software PWM) on 4 pins LED and Test/Status LEDcolour: blueMaterial: PC+metalPackage Contents:5 x ATTINY85 USB Development BoardOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.