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 .

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1.1 inch
Height : 0.1 inch
Length : 1.5 inch

Item Weight: 0.64 ounce (View shipping rates and policies)
Shipping Weight: 0.64 ounce (View shipping rates and policies)

ASIN : B01MZGFU08