The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 c
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Amazon.com: Adeept 42 Modules Ultimate Sensor Kit Compatible with Arduino UNO R3 Mega2560 Nano, Sensor Starter Kit for Arduino with Guidebook(PDF) Processing - Arduino UNO R3 not Included : Toys & Games
![Arduino Hole Dimensions Drawing « Adafruit Industries – Makers, hackers, artists, designers and engineers! Arduino Hole Dimensions Drawing « Adafruit Industries – Makers, hackers, artists, designers and engineers!](http://farm6.static.flickr.com/5091/5484250200_dc106d9efd.jpg)
Arduino Hole Dimensions Drawing « Adafruit Industries – Makers, hackers, artists, designers and engineers!
![Arduino Hole Dimensions Drawing « Adafruit Industries – Makers, hackers, artists, designers and engineers! Arduino Hole Dimensions Drawing « Adafruit Industries – Makers, hackers, artists, designers and engineers!](http://farm6.static.flickr.com/5060/5483656277_2d0e3def73.jpg)