SPINNING UP FUN WITH ENCODERS

摘要

In my dual life that crosses between the technical and entertainment worlds, I have the incredible good fortune to meet some really great people. Case in point: I was contacted by a cool cat named Wayne (dubbed "the Brain" by his friends) who (like me) is an electronics enthusiast and embedded programmer, who also works in show biz. Wayne's entertainment gig is in music, engineering, and mixing songs for some amazing A-List Pop, R&B, and Hip-Hop artists. Wayne needed a little help with an encoder for a personal project. Coincidentally, one of my customers had asked about adding a local user interface to a product. So, while working with Wayne, I solved my own problem and will show you what I came up with so you can put it to use, too. And while we're on the topic of expanding inputs with just a few I/O pins, I'm also going to show you how to apply an old trick to this new processor.