Hello,
I am trying to run linear actuator with BTS7960 motor driver and Arduino UNO. But, the code seems fine, wiring seems fine but after uploading the code, the linear actuator does not start.
I am using two push buttons to extend and retract the actuator.

The code is shown below:
byte mspeed=0;

int RPWM = 5;
byte mspeed=0;
int LPWM = 6;


void setup() {

  // put your setup code here, to run once:

   Serial.begin(9600);

   pinMode(2, INPUT_PULLUP);

   pinMode(4, INPUT_PULLUP);

    pinMode(13, OUTPUT);


   pinMode(RPWM,OUTPUT);

   pinMode(LPWM,OUTPUT);

}


void loop() {

  // put your main code here, to run repeatedly:

  if( digitalRead(2) == LOW & digitalRead(4) == HIGH  ){

    mspeed = 255;

    analogWrite(RPWM,0);

    analogWrite(LPWM, mspeed);

    digitalWrite(13,HIGH);

  }

  else if( digitalRead(2) == HIGH & digitalRead(4) == LOW  ){

    mspeed = 255;

    analogWrite(RPWM,mspeed);

    analogWrite(LPWM, 0);

    digitalWrite(13,LOW);

  }

  else{

     analogWrite(RPWM,0);

    analogWrite(LPWM, 0);

  }


}

I am following the attached circuit diagram and using 12V DC power supply

 

hi Muskaan,
Welcome to AAC.
What is the operating voltage and current of the Actuators.?
E

 

hi Muskaan,
Welcome to AAC.
What is the operating voltage and current of the Actuators.?
E

12 V

 

... Are you able to turn the actuator spindle by applying 12 volts directly to the motor, maybe switching polarity, just to verify operation?

 

hi Muskaan,
Your code works for me, using LED's on the output pins.
Please post a circuit diagram.
E

 

... Are you able to turn the actuator spindle by applying 12 volts directly to the motor, maybe switching polarity, just to verify operation?

Yes it is working when applying 12 V directly

 

hi Muskaan,
Your code works for me, using LED's on the output pins.
Please post a circuit diagram.
E

I have also used LEDs to verify. they are working. but actuator shows no life. circuit diagram is attached

 

hi Muskaan,
Attached is the datasheet for the IBT2 Bridge driver and some other documents for IBT.

Please edit the PDF by adding the UNO connections to the IBT , also the Vcc and Vs voltage values.

We can the test the project and suggest what is causing the problem.
E
Added a clip of the circuit from the datasheet, so that you enter the above details

 

I don't see a Vcc (pin 7 ) connection to the IBT module?
Where do the actuator and 12V supply connect?

 

Hi M,

This Sketch will switch Fwd/Rev at 1 second rate.?
Easier for quick testing.
It works OK in a buit project.

// Muskaan Alternate 1 second Fwd/Rev 230521.57A

byte mspeed=0;
int RPWM = 5;
int LPWM = 6;

void setup() {
   Serial.begin(9600);
   pinMode(2, INPUT_PULLUP);
   pinMode(4, INPUT_PULLUP);
   pinMode(13, OUTPUT);
   pinMode(RPWM,OUTPUT);
   pinMode(LPWM,OUTPUT);
}
void loop() {
    mspeed = 255;
     Serial.print("Fwd ");
    Serial.println(mspeed);
    analogWrite(RPWM,0);
    analogWrite(LPWM, mspeed);
    digitalWrite(13,HIGH);
delay(1000);
     Serial.print("Rev ");
     Serial.println(mspeed);
    analogWrite(RPWM,mspeed);
    analogWrite(LPWM, 0);
    digitalWrite(13,LOW);
delay(1000);  
}