PID Loop Controller with a Servo

[tomy]

Originally Posted by asid61

Forgive me for not knowing, but how do you get feedback from a hobby servo? Don't they already have PID built in too?

I think they do. The more I think about this the more I'm thinking of not using a PID loop and using the distance to the target as a ratio of the angle. The only problem is that the distance away from the target will change that ratio. For instance if you are two feet away changing the angle by one degree will be different if you are five feet away