Description:1, this module is a pulse generation module, supply the control signal to stepper driver. To control the stepper motor, it must be equipped with a drive.2, this simple controller + stepper motor + stepper motor + DC power supply can be composed of a simple set of control platform.3, the controller has high 5.4k-160khz, middle 540-16.6khz, low 80-2.4khz total of 3 kinds of low frequency signal can be used to select the jumper.4, can produce pulse signal, can also produce PWM signal, can choose the jumper.5, the frequency of measurement: PUL and common cathode endDifferent stepper driver may mark different nameEN=ENA=FREE EnablePUL=PULS=CLK PulseDIR=CW=CWW DirectionCommon anode Connection method (B)EN+ PUL+ DIR+ connect together to com+EN- connect ENPUL- connect CLKDIR- connect DIRCommon cathode Connection method (B)EN- PUL- DIR- connect together to com-EN+ connect ENPUL+ connect CLKDIR+ connect DIRSize: 5.8x3.9cm/2.28x1.54inchQuantity: 1 Pc Note:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bidDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage Contents: 1 Pc x Control Signal Generator Module