Unfortunately there aren't as many good electronics resources online as you can find for software. "Lessons in Electric Circuits" by Tony R. Kuphaldt is a pret

Unfortunately there aren't as many good electronics resources online as you can find for software. "Lessons in Electric Circuits" by Tony R. Kuphaldt is a pretty good introduction to the basics, you can find an improved version online: http://www.allaboutcircuits.com/textbook/ http://www.allaboutcircuits.com/textbook/ The most popular book is probably "The Art of Electronics", it's pricey but well worth it if you're serious: https://www.amazon.com/Art-Electronics-Paul-Horowitz/dp/0521809266/ref=sr_1_1?ie=UTF8&qid=1470955260&sr=8-1&keywords=the+art+of+electronics https://www.amazon.com/Art-Electronics-Paul-Horowitz/dp/0521... Check the usual suspects for communities, e.g. Reddit (/r/electronics, /r/AskElectronics) and StackExchange.