#define inA1 23
#define inA2 22
#define inB1 19
#define inB2 18
   
#define EnA 21
#define EnB 17


int speed_motor = 10;


void setup() 
{

  pinMode(inA1, OUTPUT);
  pinMode(inA2, OUTPUT);
  pinMode(inB1, OUTPUT);
  pinMode(inB2, OUTPUT);

  Serial.begin(9600);
 
}


void loop() 
{

  motor_control();
 

}

void motor_control()
{
  
    analogWrite(EnB,speed_motor);  //Left Motor Speed
    analogWrite(EnA,speed_motor); //Right Motor Speed
    forward();
    // reverse();
// reverse()
// left()
// right()
}


void forward()
{
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, HIGH);
  digitalWrite(inA2, LOW);
  digitalWrite(inB1, HIGH);
  digitalWrite(inB2, LOW);
}
void reverse()
{
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, LOW);
  digitalWrite(inA2, HIGH);
  digitalWrite(inB1, LOW);
  digitalWrite(inB2, HIGH);
}
void left()
{
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, HIGH);
  digitalWrite(inA2, LOW);
  digitalWrite(inB1, LOW);
  digitalWrite(inB2, LOW);
}
void right()
{
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, LOW);
  digitalWrite(inA2, LOW);
  digitalWrite(inB1, HIGH);
  digitalWrite(inB2, LOW);

}
void sharpLeftTurn() {
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, LOW);
  digitalWrite(inA2, HIGH);
  digitalWrite(inB1, HIGH);
  digitalWrite(inB2, LOW);
}
void sharpRightTurn() {
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, HIGH);
  digitalWrite(inA2, LOW);
  digitalWrite(inB1, LOW);
  digitalWrite(inB2, HIGH);
  analogWrite(EnA, 80);        
  analogWrite(EnB, 80);
}
void stop_bot()
{
  /*The pin numbers and high, low values might be different depending on your connections */
  digitalWrite(inA1, LOW);
  digitalWrite(inA2, LOW);
  digitalWrite(inB1, LOW);
  digitalWrite(inB2, LOW);
}