Features Integrated soft rectifier function for efficient motor control and extended motor lifespan. Built-in over current protection and reverse connection protection for enhanced safety and durability. Precise motor speed control from 5% to 100%, providing flexibility for various applications. Convenient potentiometer for easy adjustment of motor speed, allowing for customized performance. Versatile control over motor rotation direction, providing full management of motor . Specification: Item Type:Motor Driver Board Working voltage: DC7.5V-18V Working current: ≤ 3A Speed voltage: 0.25V-5V Speed range: 5%-100% Drive power: 30W Wiring instructions: 1. Control terminal: 5V: Driver board output voltage, external speed potentiometer when used (empty when not in use) ZF: Motor rotation direction control terminal, grounding or 5V can change the direction of the motor (can be left, the steering is fixed) VR: speed signal input, voltage 0.25V-5V (when the voltage of the motor is less than 0.25V the motor does not rotate) GND: shared control terminal 2, the output: Power +: Connect the positive pole of the power supply, the voltage is 7.5volts 18V --- Power - : Power ground, then power negative MA / U: Turn off every three wires of the motor MB / V: every three lines of the motor MC / W: every three lines of the motor Package List: 1 x Brushless Motor Driver Board 1 x Speed Adjuster + Positive and Negative Switch 1 x 5Pin Output Control Cable(Random Color) Note: betweendiv>In order to drive the motor better and more efficiently, we have divided it into 2 specifications.(Can be programmed)between/div>betweendiv>1, 12V ordinary, working voltage range 7.5V---18V, the highest speed 3000 rpmbetween/div>betweendiv>2, 12V high speed, working voltage range 7.5V---18V, the highest speed reaches 50,000 rpmbetween/div> Package List 1 x Brushless Motor Driver Board 1 x Speed Adjuster + Positive and Negative Switch 1 x 5Pin Output Control Cable(Random Color)