#define pin2 3
#define pin1 4
#define enable 5

void setup() {
  pinMode(pin1, OUTPUT); 
  pinMode(pin2, OUTPUT); 
  pinMode(enable, OUTPUT); 
  delay(1000);
 }
void loop() {
  //Make motor turn in one direction with a speed of 500 
  digitalWrite(pin1,1); 
  digitalWrite(pin2,0); 
  analogWrite(enable,500); 
      
  delay(1000);

  //Make the DC Motor stop
  digitalWrite(pin1,0); 
  digitalWrite(pin2,0); 
  analogWrite(enable, 0);  
  delay(1000);

  //Reverse the direction of rotation and make the motor go slower
  digitalWrite(pin1,0); 
  digitalWrite(pin2,1); 
  analogWrite(enable, 50);
  delay(1000); 
  
}