Step Motor

This Example shows the use of a Step Motor.
/**************************************************************************************************
*
*  Step Motor
*
*   Version:      1.0.0 - Januar 2009
*   Author:       Etienne Ribeiro    / tutorial assistant caad      /  eribeiro[at]ethz.ch
*   Supervisor:   Christoph Wartmann / chair for caad - ETH Zürich  /  wartmann[at].arch.ethz.ch
*
*   Desc:         Shows the use of a Step Motor on digital pin.
*
***************************************************************************************************/






// Const

static int digitalButtonPin[] = {8, 9};
static int digitalOutPin[] = {12, 13, 14, 15};
static boolean enableSerial = false;




// Setup

void setup()
{

        pinMode(48, OUTPUT);
        digitalWrite(48, HIGH);
        delay(200);
        digitalWrite(48, LOW);
        delay(200);
        digitalWrite(48, HIGH);


        // Serial
        if (enableSerial == true) Serial.begin(9600);


        // pinMode
        pinMode(digitalButtonPin[0], INPUT);
        pinMode(digitalButtonPin[1], INPUT);
        for (int i=0; i<3; i++) {
                pinMode(i, OUTPUT);
        }

}




// Loop

void loop()
{

        // Foreward
        if (digitalRead(digitalButtonPin[0]) == LOW) {

                if (enableSerial == true)
                Serial.println("     Stepmotor forward");

                stepforward();

        }


        // Backward
        if (digitalRead(digitalButtonPin[1]) == LOW) {

                if (enableSerial == true)
                Serial.println("     Stepmotor backward");

                stepbackward();

        }


        // Serial
        if (enableSerial == true) {
                Serial.print("   Stepmotor  ");
                Serial.println("");
        }

}




// Stepforward

void stepforward() {
        digitalWrite(digitalOutPin[0], HIGH);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], HIGH);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], HIGH);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], HIGH);
        delay(30);
}




// Stepbackward

void stepbackward() {
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], HIGH);
        delay(30);
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], HIGH);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
        digitalWrite(digitalOutPin[0], LOW);
        digitalWrite(digitalOutPin[1], HIGH);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
        digitalWrite(digitalOutPin[0], HIGH);
        digitalWrite(digitalOutPin[1], LOW);
        digitalWrite(digitalOutPin[2], LOW);
        digitalWrite(digitalOutPin[3], LOW);
        delay(30);
}