Read current step or step progress from 2H Microstep Driver

#1

Hello,

I’ve used this page to code my arduino in controlling a 42BYG motor:
http://wiki.makeblock.cc/index.php?title=Me_2H_Microstep_Driver

Is it possible to read the current step value?

/*************************************************************************
* File Name          : Me_AccelStepper.ino
* Author             : Ander
* Updated            : Ander
* Version            : V0.0.3
* Date               : 12/11/2013
* Description        : 2 Step Motors
* License            : CC-BY-SA 3.0
* Copyright (C) 2011-2013 Hulu Robot Technology Co., Ltd. All right reserved.
* http://www.makeblock.cc/
**************************************************************************/
#include <Makeblock.h>
#include <Arduino.h>
#include <SoftwareSerial.h>
#include <Wire.h>
#include <AccelStepper.h>

// Define a stepper and the pins it will use
AccelStepper stepper(AccelStepper::DRIVER, 13, 12); // 13-PUL,12-DIR

void setup()
{  
  stepper.setAcceleration(80000);
  stepper.setCurrentPosition(0);
  stepper.setMaxSpeed(4000);
}
long current_position;
void loop() 
{
  current_position = stepper.currentPosition();
  if(current_position>=50000){
    stepper.moveTo(0);
  }
  if(current_position<=0){
    stepper.moveTo(50000);
  }
  stepper.run();
}

Thanks!

#2

In case you are doing the movement of your motor “manually” while looping

    digitalWrite(motor_x_stp, HIGH);
    delayMicroseconds(msTouse);
    digitalWrite(motor_x_stp, LOW);
    delayMicroseconds(msTouse);

the you exactly know the current step.

#3