This is a dedicated DC motor control module. The module has multiple built-in fixed operating modes, allowing users to quickly select the appropriate motion trajectory. It can save and set time/speed/delay/cycle count even after power failure. It can operate independently or be used with other systems. Suitable for general industrial control applications. Uses a TTL serial port interface, communication protocol is MODBUS-RTU, baud rate is 9600. This product only supports function codes 0x03, 0x06, and 0x10. Product Model: ZK-DMC02 DC Motor Control Driver with Brushed Speed Control Compatible Motor: DC Motor Power Supply Range: DC 12-30V Universal Drive Method: H-bridge Drive Capacity: Up to 10A RMS Drive Frequency: 1kHz Control Modes: 23 types Communication Method: MODBUS Instruction Features: Simplified and optimized multiple commonly used instructions Acceleration/Deceleration Control: Yes Input Reverse Connection Protection: Yes Remote Communication Control: TTL Serial Port Main System Functions: Automatic, Manual, Setting, Serial Port Control Cycle Count: 1-9999 times Input Power Supply: DC Power Supply Protection Function: Settable Protection Current Expansion Interfaces: Power Supply/Button/Limit/Output Operating Environment: -10℃~60℃ (Non-condensing) Color: As Shown Material: plastic Package Contents: 1 * DC Motor Controller 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.