- Standard 40-pin GPIO extension header for Raspberry Pi Series boards, enabling direct GPIO access for control and interfacing. - Integrated 5V regulator powers the Raspberry Pi from the module, simplifying wiring and reducing external power components. - HR8825 motor driver with built-in microstep indexer drives two stepper motors, providing reliable and easy to configure motion control. - Six microstep modes selectable via DIP switches: full step, half step, 1/4 step, 1/8 step, 1/16 step, and 1/32 step for precise motor control. - Compatibility and practicality: designed to work with Raspberry Pi 40-pin headers, suitable for compact, integrated motion projects. - Use scenarios: 1) Build a Raspberry Pi based CNC controller for small milling or engraving projects. 2) Create a dual-axis motion system for a DIY 3D printer or robotic platform. 3) Construct a motorized camera slider or automated focus system for videography.