Since The Wiring Sequence Of The Motor Does Not Necessarily Match The Wiring Sequence On The Board, It Needs To Be Adjusted. Please Pay Attention! If The Wiring Sequence Is Wrong, It Cannot Start Normally, The Current Will Not Turn On At Startup, Etc., And Forced Use Will Burn Out The Driver Board. !! Motor Drive Board 12-36v Dc Power Input, Vcc Is The Positive Power Supply, And Gnd Is The Negative Power Supply. Hall Signal Input: Ha, Hb, And Correspond To The Motor Respectively. When The 5v Power Supply Is Connected To The Motor, The Hall Signal Is Positive, And When The Gnd Power Supply Is Connected To The Motor, The Hall Signal Is Negative. Brushless Motor Drive Controller Board Requires Professional Installation, Easy To Carry And Store Power terminal Out: VCC(positive power supply); GND(negative one); (motor phases W); MB(motor phases V); MA(motor phase) Set for the control side: GND control terminal ground VR the governor end 0-5V(corresponding to 10% of motor speed-100%) reversing control(connected to 5V or ground can charge the motor rotation direction) M tachometer pulse output(depending on the number of motor poles corresponding to the number of pulse per revolution of the output number) EL enable control terminal(connected to 5V ot ground running then 5V,grounding the motor stops) 5V 5V control terminal HALL for the hall terminals:5V,Hall power positive;Ha,Hall signal;Hb,Hall signal;,Hall Signal;GND,Hall negative Control terminal for SET: 1. The motor speed control wiring methods:available potentiometer system speed can also be connected to the MCU control,when the potentiometer control wiring,the potentiometer middle pin is connected to VR speed port,potentiometer connected to both ends of 5V and GND terminal voltage more high speed faster 2. Motor steering control wiring methods:you can switch control can also be connected to the MCU control,to GND in one direction,then in 5V 3. Pulse speed signal:high and low output.IC can not understand the information with the customer request Different Batches May Have Differences In Product Appearance,Color,And Printed Characters,Which Will Not Affect The Use Colour:As Shown Material:PCB Package Contents: 1 * Brushless Motor Drive Controller Board 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.