Nice write-up on state machines

Nice write-up on what state machine are and how they work.  I am mixed on state machines, in some cases they are useful.  But I have found over the years that many layer state machines can lead to lots of bugs in the future.  If its a few layers deep, not so bad.

http://hackaday.com/2014/05/27/using-state-machines-in-your-projects/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29

http://hackaday.io/post/2774