DC Motor

Motor ON/OFF

/*
 * http://arduspot.blogspot.in/p/dc-motor.html
 *
 *  L293D       Arduino
 *   EN1          5V
 *   IN1          D5
 *   IN2          D6
 *
 * Note:
 *  GND(L293D), GND(12V) & GND(Arduino) should be shorted
 */

int mtr1 = 5;
int mtr2 = 6;

void setup()
{
  pinMode(mtr1,OUTPUT);
  pinMode(mtr2,OUTPUT);
}

void loop()
{
  digitalWrite(mtr1,HIGH);
  digitalWrite(mtr2,LOW);
  delay(1000);

  digitalWrite(mtr1,LOW);
  digitalWrite(mtr2,LOW);
  delay(1000);
}

Motor Fwd/Rev/Stop

/*

 * http://arduspot.blogspot.in/p/dc-motor.html

 * 

 *  L293D       Arduino

 *   EN1          5V

 *   IN1          D5

 *   IN2          D6

 *   

 * Note:

 *  GND(L293D), GND(12V) & GND(Arduino) should be shorted

 */

int mtr1 = 5;

int mtr2 = 6;

void setup() 

{

  pinMode(mtr1,OUTPUT);

  pinMode(mtr2,OUTPUT);

}

void loop() 

{

  digitalWrite(mtr1,HIGH);

  digitalWrite(mtr2,LOW);

  delay(1000);

  

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  delay(1000);

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,HIGH);

  delay(1000);

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  delay(1000);

}

2 Motors Fwd/Rev/ Left/Right Stop

/*

 * http://arduspot.blogspot.in/p/dc-motor.html

 * 

 *  L293D       Arduino

 *   EN1          5V

 *   EN2          5V

 *   IN1          D4

 *   IN2          D5

 *   IN3          D6

 *   IN4          D7

 * Note:

 *  GND(L293D), GND(12V) & GND(Arduino) should be shorted

 */

int mtr1 = 4;

int mtr2 = 5;

int mtr3 = 6;

int mtr4 = 7;

void setup() 

{

  pinMode(mtr1,OUTPUT);

  pinMode(mtr2,OUTPUT);

  pinMode(mtr3,OUTPUT);

  pinMode(mtr4,OUTPUT);

}

void loop() 

{

  //FORWARD

  digitalWrite(mtr1,HIGH);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,HIGH);

  delay(1000);

  

  //STOP

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,LOW);

  delay(1000);

  //REVERSE

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,HIGH);

  digitalWrite(mtr3,HIGH);

  digitalWrite(mtr4,LOW);

  delay(1000);

  //STOP

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,LOW);

  delay(1000);

  

  //RIGHT

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,HIGH);

  delay(1000);

  //STOP

  digitalWrite(mtr1,LOW);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,LOW);

  delay(1000);

  //LEFT

  digitalWrite(mtr1,HIGH);

  digitalWrite(mtr2,LOW);

  digitalWrite(mtr3,LOW);

  digitalWrite(mtr4,LOW);

  delay(1000);

}

Speed Control - PWM

/*

 * http://arduspot.blogspot.in/p/dc-motor.html

 * 

 *  L293D       Arduino

 *   EN1          5V

 *   IN1          D5

 *   IN2          D6

 *   

 * Note:

 *  GND(L293D), GND(12V) & GND(Arduino) should be shorted

 */

int mtr1 = 5;

int mtr2 = 6;

void setup() 

{

  pinMode(mtr1,OUTPUT);

  pinMode(mtr2,OUTPUT);

}

void loop() 

{

  //FORWARD - FULL SPEED

  analogWrite(mtr1,255);

  analogWrite(mtr2,0);

  delay(5000);

  //FORWARD - SLOW SPEED

  analogWrite(mtr1,100);

  analogWrite(mtr2,0);

  delay(5000);

  //STOP

  analogWrite(mtr1,0);

  analogWrite(mtr2,0);

  delay(5000);

  //REVERSE - SLOW SPEED

  analogWrite(mtr1,0);

  analogWrite(mtr2,100);

  delay(5000);

  //REVERSE - FULL SPEED

  analogWrite(mtr1,0);

  analogWrite(mtr2,255);

  delay(5000);

  //STOP

  analogWrite(mtr1,0);

  analogWrite(mtr2,0);

  delay(5000);

}