/*
 *  file: PWM_for_XY1260_module_no_pot
 * Modify XY-1250 12-50V 60A PWM to work with Arduino
 * This code allows you to control the motor without a potentiometer. See video for demonstration.
 * 
 * How to use:
 * To control speed at 100%
    motorControl(100);  
    delay(3000);//keep it running for 3 seconds
 * To control speed at 400%
    motorControl(40);  
    delay(3000);//keep it running for 3 seconds
 * To stop motor
    motorControl(0); //set zero
    delay(3000);//keep it running for 3 seconds
 * Written by Ahmad Shamshiri
 * on Saturday, January 30, 2021, at 12:49
 * in Ajax, Ontario, Canada
 * www.Robojax.com
 * Watch the video instruction: https://youtu.be/ZLZr2AZgmPI
 */
#define pwmPin1 3
#define pwmPin2 6
bool defaultMotorON = false;// or set to "true" to make the motor start
unsigned int defaultSpeed= 20;//20% set it in % 0=stop, 100=full speed

int toPWM(int);//prototype
void setup() {
  pinMode(pwmPin1,OUTPUT);
  pinMode(pwmPin2,OUTPUT);
  Serial.begin(9600);
  Serial.print("Control XY-1260 without pot");
  if(defaultMotorON){
  analogWrite(pwmPin1,toPWM(defaultSpeed));
  analogWrite(pwmPin2,toPWM(defaultSpeed));    
  }else{
  analogWrite(pwmPin1,0);
  analogWrite(pwmPin2,0);    
  }


}

void loop() {
    motorControl(100);//set speed to 100%
    delay(3000);//keep motor running at 100% for 3 seconds

    motorControl(0);//stops motor
    delay(4000);//keep motor stopped for 4 seconds

    motorControl(45);//set speed to 45%
    delay(3000);//keep motor running at 45% for 3 seconds

    motorControl(0);//stops motor
    delay(4000);//keep motor stopped for 4 seconds    

    //from 0 to 100% with 50 millisecond delay (increasing speed)
      for(int i=0; i<100; i++)
      {
        motorControl(i);//set speed with value of i from 0 to 100
        delay(50);//give motor 50 milliseconds before going to the next value   
      }//for loop end


    motorControl(0);//stops motor 
    delay(4000);//keep motor stopped for 4 seconds    

    //from 100% to 10 with 50 millisecond delay (decreasing speed)
      for(int i=100; i>0; i--)
      {
        motorControl(i);//set speed with value of i from 0 to 100
        delay(50);//give motor 50 milliseconds before going to the next value   
      }//for loop end
      
    motorControl(0);//stops motor 
    delay(4000);//keep motor stopped for 4 seconds   
      
}//loop end

/*
 * @brief converts % value from 0 to 100% to 0-255
 * @param v is integer value representing % from 0-100
 * @return will return value from 0 to 255
 */
int toPWM(int v){
  return map(v, 0,100,0,255);
}//

/*
 * @brief controls the speed of motor with value from 0 to 100%
 * @param speed is integer value representing % from 0-100
 * @return none
 * written January 30, 2021 by Ahmad Shamshiri
 * www.robojax.com
 * 
 */
void motorControl(int speed)
{
  int pwm= map(speed, 0,100,0,255);  
  analogWrite(pwmPin1,pwm);
  analogWrite(pwmPin2,pwm);  
}