Ⅰ. [Controller & Driver] Integrated step motor controller and driver functions. It can not only realize motor control, but also monitor the working state of the stepper motor in real time. Ⅱ. [Forward & Reverse] It can change rotation direction by pressing button or potentiometer. It can also automatically change the direction through the working mode to achieve multi-scene and multi-application. Ⅲ. [4 Control Modes] In addition to its built-in parameters work mode, it can also be controlled by external buttons, other drivers or UART commands. Ⅳ. [9 Work States] Built-in 9 default workflow programs, covering most applications, to meet the needs of different scenarios. Forward/Reverse/Delay/Loop/Self-locking/No-lock/Rotating speed and so on. Ⅴ. [HD LCD Display] The HD LCD can clearly display the speed/delay/cycle times, making it easier to browse and set various parameters. It realizes control of the motor. Parameters support memory function that will not be lost. Ⅵ. Color: Photo color Ⅶ. Material: ABS Ⅷ. Size: 79 x 43 x 41mm Ⅸ. Package Contents: 1 x Stepper Motor Driver Controller Ⅹ. Only the above package content, other products are not included. Ⅺ. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.