1、A pulse generation module that provides control signals for the stepper drive. To control a stepper motor, a driver must be equipped. 2、Simple controller + stepper motor + stepper motor + DC power supply can form a simple control platform. 3、Motor speed controller has 3 low‑frequency signals of high level 5.4k‑160khz, medium level 540‑16.6khz, and low level 80‑2.4khz, which can be used by jumpers. 4、DC motor speed control can generate pulse signal, PWM signal can also be generated, jumper can be selected. 5、Frequency measurement, can measure PUL and common cathode (or common anode) two ports. Item Type: Motor Speed Controller Material: PCB Purpose: Stepper Motor Drive Control Voltage Range: DC 12-24V Signal Range: 5.4k-160khz, 540-16.6khz, 80-2.4khz 1 x Module