/*
UniHobbies Arduino
edits by Jorik van den Bos
*/
//this is a built-in library
#include<Stepper.h>
int steps=0;
int cycles=0;
int stepsamount=512;
int cycleamount=0;

int in1Pin =12;
int in2Pin =11;
int in3Pin =10;
int in4Pin =9;

Stepper motor(512, in1Pin, in2Pin, in3Pin, in4Pin);

void setup()
{
pinMode(in1Pin, OUTPUT);
pinMode(in2Pin, OUTPUT);
pinMode(in3Pin, OUTPUT);
pinMode(in4Pin, OUTPUT);

// this line is for Leonardo’s, it delays the serial interface
// until the terminal window is opened
while(!Serial);
Serial.begin(9600);
motor.setSpeed(40);
}

void loop()
{
//parse the amount of cycles
if(Serial.available()) cycleamount = Serial.parseInt();


//cycleamount should not be zero, can be set with parseInt()
if (cycleamount!=0)
{
  //before the amount of cycles is reached, cycles<cyceleamount
  if (cycles<cycleamount)
  {
    //stepsamount should not be zero
    if (stepsamount!=0)
    {
    //do the steps for 1 cycle
    steps+=1;
    if (steps<stepsamount) motor.step(1); else
    if (steps<stepsamount*2) motor.step(-1); else /*reset step variables*/ {steps=0; cycles+=1;}
    }
  }
  //else reset cycle variables
  else {cycles=0; cycleamount=0;}
}

}