/* Stepper Motor Control - one revolution This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the Arduino. The motor should revolve one revolution in one direction, then one revolution in the other direction. */ #include < Stepper.h> const int stepsPerRevolution = 1500; // change this to fit the number of steps per revolution // initialize the stepper library on pins 8 through 11: Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11); void setup() { // set the speed at 20 rpm: myStepper.setSpeed(20); // initialize the serial port: Serial.begin(9600); } void loop() { // step one revolution in one direction: Serial.println("clockwise"); myStepper.step(stepsPerRevolution); delay(500); // step one revolution in the other direction: Serial.println("counterclockwise"); myStepper.step(-stepsPerRevolution); delay(200); }