---
title: "Annotated Arduino UNO"
description: "(/wp-content/uploads/2010/09/5027065281_d129dc001f.jpg)](/wp-content/uploads/2010/09/5027065281_d129dc001f.jpg) westfw of the…"
canonical: "https://www.baldengineer.com/annotated-arduino-uno.html"
author: "James Lewis"
date: "2010-09-26T23:26:30Z"
lastmod: "2015-03-24T15:30:48Z"
categories: ["around-the-web"]
tags: ["arduino-uno","flickr"]
---

# Annotated Arduino UNO


[![Arduino UNO with Annotations](/wp-content/uploads/2010/09/5027065281_d129dc001f.jpg)](/wp-content/uploads/2010/09/5027065281_d129dc001f.jpg)

westfw of the [Arduino Forums](http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1285541663 "Arduino Forum") has put together a nice Flickr Annotation of the New Arduino UNO. A couple of changes have been made from the previous Duemilanove. Interestingly they have left pads for either a crystal or resonator on the board. This may allow the end-user to use a crystal for more accuracy without adding additional cost for everyone else.