Lesson 53: Using L298N Motor Driver for DC Motor Control
This code is to control two DC motors.
Watch full detailed Video https://youtu.be/fqBLIrwq2YA

/* Library Example for L298N Module to control DC motors
 * 
 * This code is to control a single motor_front. For two motor control, please open L298N_DC_2_Motors.
 * 
 * Written by Ahmad Shamshiri on October 01, 2019 at 21:26 
 * in Ajax, Ontario, Canada. www.robojax.com
 * 
 * 

 * 

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 *  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <Robojax_L298N_DC_motor.h>
// motor 1 settings
#define IN1 2
#define IN2 4
#define ENA 3 // this pin must be PWM enabled pin

// motor 2 settings
#define IN3 7
#define IN4 8
#define ENB 9 // this pin must be PWM enabled pin

const int CCW = 2; // do not change
const int CW  = 1; // do not change

#define motor1 1 // do not change
#define motor2 2 // do not change

// use the line below for single motor
//Robojax_L298N_DC_motor motor(IN1, IN2, ENA, true);

// use the line below for two motors
Robojax_L298N_DC_motor motor(IN1, IN2, ENA, IN2, IN3, ENB, true);

void setup() {
  Serial.begin(115200);
  motor.begin();
  //L298N DC Motor by Robojax.com

}

void loop() {
  
  motor.demo(1);
  motor.demo(2);  
  motor.rotate(motor1, 60, CW);//run motor1 at 60% speed in CW direction
  motor.rotate(motor2, 60, CCW);//run motor2 at 60% speed in CCW direction  
  delay(3000);

  motor.brake(1);
  motor.brake(2);
  delay(2000);


  motor.rotate(motor1, 100, CW);//run motor1 at 60% speed in CW direction
  motor.rotate(motor2, 100, CCW);//run motor2 at 60% speed in CCW direction  
  delay(3000);

  motor.brake(1);
  motor.brake(2);
  delay(2000);  

  for(int i=0; i<=100; i++)
  {
    motor.rotate(motor1, i, CW);// turn motor1 with i% speed in CW direction (whatever is i) 
    delay(100);
  }
  delay(2000);
  
  motor.brake(1);
  motor.brake(2);
  delay(2000);  

  motor.rotate(motor1, 70, CCW);//run motor1 at 70% speed in CCW direction
  motor.rotate(motor2, 5, CW);//run motor2 at 50% speed in CW direction  
  delay(4000);

  motor.brake(3);
  delay(2000);    
  
}