This is one of the most comprehensive DIY solutions to home automation out there (and it's still cheap!).<p class='wdgpo_gplus_attachment wdgpo_gplus_article_attachment'>We’ve seen a lot of DIY home automation projects over the years, but Instructables user electronichamsters shows off one of the most complete systems we’ve seen yet. With it, you’ll be able to monitor just about everything in your house.</p>