At its core, openservo is about making servo control understandable and hackable An open source controller to convert any servo motor to the best smart servo The wiki documents how a small microcontroller.
How to correctly connect a stepper motor driver with an... | Doovi
The goal of openscb project is to create a fully open source servo controller
It is meant to be an open source equivalent to commercial.
This tutorial covers a few different ways to control servos along with a project demonstrating. Currently in early phases with basic hardware testing