| Stepper Motor Sequences by Juan Manuel González V. Demonstrates the use of a TEAC stepper motor. TEAC motors rotate 360º in 50 cycles (steps). Created 15 November 2005 Updated 2 April 2006 |

    // Stepper Motor Sequences
    // by Juan Manuel González V.

    void setup()
    {
      int i;
      for(i=0; i<3; i++) {        //Analog pins for yellow, red,
        pinMode(i, OUTPUT);       //blue and white wires of the motor.
      }

      pinMode(48, OUTPUT);        //Wiring led pin 48.
      digitalWrite(48, HIGH);
    }

    void stepforward()            //Drive sequence for one cycle going
    {                             //forward.
      digitalWrite(0, HIGH);
      digitalWrite(1, LOW);
      digitalWrite(2, LOW);
      digitalWrite(3, LOW);
      delay(30);
      digitalWrite(0, LOW);
      digitalWrite(1, HIGH);
      digitalWrite(2, LOW);
      digitalWrite(3, LOW);
      delay(30);
      digitalWrite(0, LOW);
      digitalWrite(1, LOW);
      digitalWrite(2, HIGH);
      digitalWrite(3, LOW);
      delay(30);
      digitalWrite(0, LOW);
      digitalWrite(1, LOW);
      digitalWrite(2, LOW);
      digitalWrite(3, HIGH);
      delay(30);
    }

    void stepbackward()            //Drive sequence for one cycle going
    {                              //backward.
      digitalWrite(0, LOW);
      digitalWrite(1, LOW);
      digitalWrite(2, LOW);
      digitalWrite(3, HIGH);
      delay(30);
      digitalWrite(0, LOW);
      digitalWrite(1, LOW);
      digitalWrite(2, HIGH);
      digitalWrite(3, LOW);
      delay(30);
      digitalWrite(0, LOW);
      digitalWrite(1, HIGH);
      digitalWrite(2, LOW);
      digitalWrite(3, LOW);
      delay(30);
      digitalWrite(0, HIGH);
      digitalWrite(1, LOW);
      digitalWrite(2, LOW);
      digitalWrite(3, LOW);
      delay(30);
    }

    void loop()
    {
      stepforward();         //Repeats the required sequence over &
      //over to make the motor turn continuously FW.
      //stepbackward();        //Repeats the required sequence over &
      //over to make the motor turn continuously BW.
    }

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