//2-Way motor control 
   
  int motorPin1 =  5;    // One motor wire connected to digital pin 5 
  int motorPin2 =  6;    // One motor wire connected to digital pin 6 
   
  // The setup() method runs once, when the sketch starts 
   
  void setup()   {                 
    // initialize the digital pins as an output: 
    pinMode(motorPin1, OUTPUT);  
    pinMode(motorPin2, OUTPUT);   
  } 
   
  // the loop() method runs over and over again, 
  // as long as the Arduino has power 
  void loop()                      
  { 
    rotateLeft(150, 500); 
    rotateRight(50, 1000); 
    rotateRight(150, 1000); 
    rotateRight(200, 1000); 
    rotateLeft(255, 500); 
    rotateRight(10, 1500); 
  } 
   
  void rotateLeft(int speedOfRotate, int length){ 
    analogWrite(motorPin1, speedOfRotate); //rotates motor 
    digitalWrite(motorPin2, LOW);    // set the Pin motorPin2 LOW 
    delay(length); //waits 
    digitalWrite(motorPin1, LOW);    // set the Pin motorPin1 LOW 
  } 
   
  void rotateRight(int speedOfRotate, int length){ 
    analogWrite(motorPin2, speedOfRotate); //rotates motor 
    digitalWrite(motorPin1, LOW);    // set the Pin motorPin1 LOW 
    delay(length); //waits 
    digitalWrite(motorPin2, LOW);    // set the Pin motorPin2 LOW 
  } 
   
  void rotateLeftFull(int length){ 
    digitalWrite(motorPin1, HIGH); //rotates motor 
    digitalWrite(motorPin2, LOW);    // set the Pin motorPin2 LOW 
    delay(length); //waits 
    digitalWrite(motorPin1, LOW);    // set the Pin motorPin1 LOW 
  } 
   
  void rotateRightFull(int length){ 
    digitalWrite(motorPin2, HIGH); //rotates motor 
    digitalWrite(motorPin1, LOW);    // set the Pin motorPin1 LOW 
    delay(length); //waits 
    digitalWrite(motorPin2, LOW);    // set the Pin motorPin2 LOW 
  }