This module is a pulse generation module and supplies a stepper driver as a signal. To control the stepper motor, it must be equipped with a driver.This simple controller and stepper driver and stepper motor and DC power supply can form a simple control platform.(Only the controller is included.)The controller has a total of 3 kinds of frequency signals: high 5.4k-160khz, medium 540-16.6khz, and low 80-2.4khz, which can be selected with a jumper.It can generate pulse signal and PWM signal, and it can be selected by jumper.Frequency measurement: You can measure PUL and common cathode (or common anode) two ports.Power Input: 8-24VFrequency Signals: 5.4k-160khz,540-16.6khz,80-2.4khzColour:blackMaterial:PCB boardPackage Contents:1 x ControllerOnly the above package content, other products are not included.Note: Light 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.