1. Very beautiful article.2. Examples on Pin Change Interrupts of ATmega328 may kindly be added.3. with a lot of appreciations.
As I am something of a newbie myself, but technically proficient enough to bridge the gap between ignorance and knowledge, I thought I would create an article as a tutorial for how to use the 328's many features, both as a means of recording all the things I learned and to provide others the noob perspective so they can get into Arduino more easily without being intimidated by some of its complexity. It's written in a very casual style but I think it will leave readers more confident to tackle projects if they've never worked with Arduino before. Have fun:The Ultimate Arduino TutorialIn this article you will find concrete examples with full code included, pictures, video and other useful aids for the layperson to jump right into Arduino projects and see immediate results the same day.
The Ultimate Arduino Tutorial