Bldc motor driver bld-300b

Other Hardware Motors, Mechanics, Power and CNC
1

Hi , I am trying to connecting BLDC MOTOR DRIVER BLD-300B with arduino
I found the attached video :How to use controller to reverse and stop the BLDC motor. - YouTube
I follow it but connected pind with arduino UNO pin but it is not working .

,so how i can connect it with arduino ?

2

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for advice on (nor for problems with) your project :wink: See About the Installation & Troubleshooting category.

1 Like
3

Please post a link to the datasheet of the driver and schematics. Most helpers don't spend time on videos.

4

User manual:

Looks like you connect eight wires to your motor and five to your Arduino. The "SV" pin goes to a PWM pin on the Arduino to control speed (analogWrite 0 to 255 for slow to fast). The "EN", "BRK", and "F/R" pins go to Arduino digital outputs. LOW is active so set "EN" to LOW to enable the driver, set "F/R" to Forward or Reverse, and set "BRK" to LOW to brake. The "COM" goes to Arduino ground.

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5

when I connect it as u said I still face a problem that the motor not react as expected program

int FR=D5;
int en=D2;
int sv=D1;
int br=D3;
void setup() {
  // put your setup code here, to run once:
pinMode(FR,OUTPUT);
pinMode(sv,OUTPUT);
pinMode(en,OUTPUT);
pinMode(br,OUTPUT);
Serial.begin(9600);

}
void wheelStop(){
  digitalWrite(en,LOW);

}

void wheelMoveForward(){

      digitalWrite(en,LOW);
      delay(1000);
      digitalWrite(FR,LOW);
      delay(1000);
      digitalWrite(en,HIGH);

}
void wheelMoveBackward(){
      digitalWrite(en,LOW);
      delay(1000);
      digitalWrite(FR,HIGH);
      delay(1000);
      digitalWrite(en,HIGH);
}
void loop(){
  wheelMoveBackward();
  wheelStop();
  wheelMoveForward();


}

The robot move always in forward direction

6

I don't see where you set the speed or release the brakes. Try adding these to the end of setup():

  digitalWrite(en, HIGH); // Disable the driver
  digitalWrite(sv, HIGH); // Full Speed
  digitalWrite(be, HIGH); // Release the brake

Are you sure you have all eight wires to the motor wired correctly?

7

Yes , I sure

8

I adjust the speed by using the internal potentiometer

9

I almost do some change here in my code and it is work properly right now , thanks alot for your help

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10

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