Here’s a link to some recent work I’ve done with servo control using a Microsoft Kinect sensor: bkbrown.com/projects-RoboCamFace2.html
In this phase of the project I’m using the Pololu Micro Maestro servo controller and DLL to position a webcam in response to face-tracking data from a Kinect sensor. Some of my earlier work (makeprojects.com/Project/Kinect- … --WsfWVvct) was done with a breadboarded voltage-to-PWM circuit that produced a lot of jitter. The Maestro servo controller has been working much better, with a considerably smaller footprint.