So say I want to push a button and this button using PID was to move a encoder to a certain position and since you are using PID it would keep it there. How do you implement PID in robotC code.
Here's basic encoder information. I think we gave it earlier when you were asking, though. http://say-watt.org/wp2/archives/391
PID wouldn't help much, from what I can tell. What you do is - when your arm or whatever thing is in the down position, set the encoder to 0, then when you press the button, have it move forward till the encoder click you want and tell it to stop.
I think that's how it works. I'm a hardware guy, so don't take my word for it. Email one of our coders at email@example.com