Quote: Originally Posted by
h3rk 
Vacuum's easy too but as for the servos,
They look like this:
http://info.rockauto.com/ACDelco/Det...ml?15-5660.jpg
5 pins, 12V, GND, sensor GND, Feedback, Control (5V= open, 2.5V = hold, 0V = close). That way you don't have to control the servo with variable analog output, you just use variable analog feedback.
It's about 1.3" wide 4"x3" (not exact, I have a couple I can take better pictures of if you want).
Many newer chevy trucks have them. And many cars too.
There are versions without feedback though, so be careful. But they could be used for people who need them for recirc.
The rotating sleeve is splined....
So, would I just shoot 5V to it to move up from one option to the next and then give it 2.5V to keep it there, and 0V to close it? Or does it pass resistance on the feedback terminal to determine position?
I'm curious.
Jay