[Controller & Driver] Integrated step motor controller and driver functions. It can not only drive the motor, but also control the working state of the stepper motor in real time. [Forward & Reverse] Rotation direction can be changed by button or potentiometer. Automatically changes direction through the working mode for multi-scene and multi-application use. [4 Control Modes] In addition to built-in parameter work modes, it can be controlled via external buttons, other drivers, or UART commands. [9 Work States] Built-in 9 default workflow programs covering most applications, meeting various scenario needs. Includes Forward, Reverse, Delay, Loop, Self-locking, No-lock, and Rotating Speed settings. [HD LCD Display] HD LCD clearly displays speed, delay, and cycle times for easy browsing and parameter setting. Enables high-precision motor control. Parameters are saved with memory retention. Color: As shown in photo Material: ABS Size: 79 x 43 x 41mm Package Contents: 1 x Stepper Motor Driver Controller Note: Other products are not included. Light reflection and display differences may cause slight color variation between image and actual item. Measurement error allowed is +/- 1-3cm.