ITEM NAME:Attiny85 Micro-USB Development Board Module for Arduino ATtiny MC E8C4 Attiny85 Micro-USB Development Board Module for Arduino ATtiny MC E8C4 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). Size:1.8cm x 2.6cm/0.71 x 1.02 inch material:CCL colour:BLUE Package included:1*Micro-USB Development Board Module 1 row row needle Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.