RA-SMC02 Stepper Motor Driver Controller Integrated Board – Forward/Reverse, Pulse, Speed, and Angle Control Module for 42mm Stepper Motors This integrated controller and driver board supports real-time control of stepper motor operation, including direction (forward/reverse), speed, delay, loop, self-locking, non-locking, and rotation angle. Direction control is achieved via push-button, potentiometer, or automatic mode switching for versatile applications. Features four control modes: built-in parameter mode, external button control, external driver signal input, and UART command control. Includes nine preset working states: forward, reverse, delay, loop, self-locking, non-locking, adjustable speed, angle control, and pause — covering common industrial and DIY use cases. Equipped with a high-definition LCD display showing real-time parameters such as speed, delay time, and cycle count for intuitive setup and monitoring. Supports parameter memory retention — settings are saved after power-off. Housing material: ABS Dimensions: 79 × 43 × 41 mm Package includes: 1 × Stepper Motor Driver Controller Note: Actual product color may vary slightly due to lighting conditions and screen calibration. Dimensional tolerance: ±1–3 mm.