The PMC006x3 is a miniature all-in-one stepper motor controller that can be mounted directly on the back cover of NEMA 14/17 series stepper motors. PMC006x3 provides a simple and rich set of control commands, which not only greatly simplifies the complexity of the upper control system, but also retains the flexibility of control to the greatest extent, and is suitable for a variety of high-precision and wide-range industrial applications. With added hot-plug protection and reverse power protection, it can effectively prevent some emergencies during testing and actual use.