Stepper motor example

gistfile1.c

// Wiring configuration to the stepper driver: yellow & red, gray & green

#include <Stepper.h>
 
const int STEPS_PER_REV = 200;
Stepper _stepper(STEPS_PER_REV, 12, 13);
 
const int pwmA = 3;
const int pwmB = 11;
const int brakeA = 9;
const int brakeB = 8;
 
void setup() {
  pinMode(pwmA, OUTPUT);
  pinMode(pwmB, OUTPUT);
  pinMode(brakeA, OUTPUT);
  pinMode(brakeB, OUTPUT);
  digitalWrite(pwmA, HIGH);
  digitalWrite(pwmB, HIGH);
  digitalWrite(brakeA, LOW);
  digitalWrite(brakeB, LOW);
  // Trying to look up information on max & min RPMs.
  // Datasheet on this website leads me to guess it's 53...
  // http://motion.schneider-electric.com/downloads/quickreference/NEMA17.pdf
  _stepper.setSpeed(53);
 }
 
 void loop() {
   _stepper.step(STEPS_PER_REV);
   _stepper.step(-STEPS_PER_REV);
   delay(100);
 }