Various functions: The controller can adjust the angle, speed, direction and delay time of the motor. The -stepping resolution can reach 1/128, allowing you to control the motor more accurately. 9 operating states: The controller has built-in 9 fixed operating modes, including forward rotation, reverse rotation, delay, , etc., which can select the operating mode faster. In addition to the built-in parameter working mode, you can also control it through external buttons or other drives. [High-definition LCD display] The controller is equipped with a high-definition LCD display, which can read parameters and set parameters more accurately. The module also has a power failure memory function to prevent your parameters from being lost. Forward and Reverse Rotation: The controller can change the direction of motor rotation by pressing a button, and you can also to use a range of working modes to two modes, automatic or manual. 13 setting functions: controller includes number, motor turn, delay time, number of pulses, forward speed, flip speed, etc. External buttons and encoders make setting parameters simple. color:Photo color Material:plastic Package Contents: 1 x controller 1 x plug wire Only the above package content, other products are not included. 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.