Features: 1. Using Two Half-Bridge Driver Chips + Low-Pass Internal Resistance 55v110a Nmos, the Motor Can Realize Forward and Reverse Rotation. 2. Two Pwm Inputs, the Duty Cycle Can Be Adjusted Within 0-99%, with Instant Capability! 3. Working Voltage 5v-30v, Power 170w. 4. the Control is Extremely Simple and Convenient, Only 3 Input Lines are Needed to Control the Motor. Supports 5v and 3.3v Logic Input, Suitable for Direct Control of Io Ports of Types of Microcontrollers. 5. the Chip Has Built-In Dead Zone Hardware Control, Which Can Better Adapt to Frequent Commutation and Reduce the Loss of the Tube Itself. the Back of the Module is Tin-Plated, Allowing the Wires to Carry Greater Current. Description: 1. Interface description: VIN: positive pole of power supply; GND: negative pole of power supply; 12V: 12V output port MOT+, MOT-: motor output interface EN: Enable terminal, active at low level IN1: Logic input 1 IN2: Logic input 2 2. Instructions for use: PWM speed control: IN1=PWM pulse (0-99%); IN2=0; Forward rotation speed is adjustable; IN1=0; IN2=PWM pulse (0-99%); reverse rotation speed is adjustable; IN1=0; IN2=0; motor ; Tips: Each time the module is powered on, there needs to be a falling edge before the control terminal is set to 0, that is, it is first pulled high and then pulled low. It is recommended to use microcontroller control. Due to the bootstrap capacitor scheme, the PWM duty cycle cannot reach 100%, and the control terminal cannot be directly connected to 1. (Different batches may have differences in product appearance, color, and printing, which do not affect use) size: 38.8mm x 67.5mm Material: PCB colour: As shown Package Contents: 1 x Motor Module 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.