https://medium.com/jungletronics/bts-7960b-high-current-pn-half-bridge-cc428153f82a

_64_BTS7960B_01.ino

/*
  BTS 7960B 
*/

int RPWM1 = 5;                       // Two board used here, 1 
int LPWM1 = 6;                             
int L_EN1 = 7;
int R_EN1 = 8;

int RPWM2 = 9;                       // and 2
int LPWM2 = 10;                              
int L_EN2 = 11;
int R_EN2 = 12;

void setup() {
                                    
  for (int i = 5; i < 12; i++) {     // Configure pins 5,6,7,8,9,10,11 as Output
    pinMode(i, OUTPUT);
  }
  
  for (int i = 5; i < 12; i++) {     // Configure pins 5,6,7,8,9,10,11 as digital LOW signal
    digitalWrite(i, LOW);
  }
  delay(10);
  
  digitalWrite(R_EN1, HIGH);          // Enable all pins
  digitalWrite(L_EN1, HIGH);

  digitalWrite(R_EN2, HIGH);
  digitalWrite(L_EN2, HIGH);
  
}



void loop() {


  delay(10);

  for (int i = 0; i < 256; i++) {     // accelerates to maximum

    analogWrite(RPWM1, i);
    analogWrite(RPWM2, i);
    //  analogWrite(LPWM1,255-i);
    //  analogWrite(LPWM2,255-i);
    delay(100);
  }
  delay(10);

  for (int i = 255; i > 0; i--) {     //  slows to a stop

    analogWrite(RPWM1, i);
    analogWrite(RPWM2, i);
    // analogWrite(LPWM1,255-i);
    // analogWrite(LPWM2,255-i);
    delay(100);
  }
  delay(10);
}