PID Control - A brief introduction
 

We found a great set of videos detailing how PID works, and how to adjust it to fit your needs. I thought I'd share it with this community since its very relevant and easy to understand.

https://www.youtube.com/watch?v=UR0h...WZC8L&index=18

All of the videos in the playlist are very good, and the guy is very clear and thorough.