stepper direction

Projects Programming
1 
  if (val == "up") 
  {
stepperY.setSpeed(500); 
     stepperY.moveTo(stepperY.currentPosition()-1000);
     stepperY.run();
     //val="";
     
  }


  if (val == "down") 
  {
stepperY.setSpeed(500);
     stepperY.moveTo(stepperY.currentPosition()+1000);
     stepperY.run();
     //val="";
     
  }

im trying to make the stepper move CW or CCW by adding + or - but stepper moves CW earther way?

I tryed set current position to 0...

2

Post the complete program.

...R

3

Here it is

sketch_sep10a.ino (16.2 KB)

4

If you are unsure how to control your motor start learning with a short program that has 10 or 20 lines of code. That way it is much easier to help you.

The program you posted in Reply #2 seems to be very similar to the program in your other Thread which I said was a pretty crap program

...R
Stepper Motor Basics
Simple Stepper Code

5

Rebelstudios:

  if (val == "up")

{
stepperY.setSpeed(500);
    stepperY.moveTo(stepperY.currentPosition()-1000);
    stepperY.run();
    //val="";
   
  }

if (val == "down")
  {
stepperY.setSpeed(500);
    stepperY.moveTo(stepperY.currentPosition()+1000);
    stepperY.run();
    //val="";
   
  }




im trying to make the stepper move CW or CCW by adding + or - but stepper moves CW earther way?

I tryed set current position to 0...

What stepper motor are you using? The 28BYJ-48 needs to have 2 wires reversed in order to turn both directions. At least mine did.

6

its a Nema 17 : 4 wires : used with a easydriver : DRV8825

Is it possible just to set the dir pin high or low when (val == "up")

7

Rebelstudios:
its a Nema 17 : 4 wires : used with a easydriver : DRV8825

A Sparkfun Easydriver does not use a DRV8825.

Is it possible just to set the dir pin high or low when (val == "up")

Yes.

...R

8

Cool...

Hey thanks for all your info sofar

@

i read your posts about making a sketch from zero and the bleutooth post. and i was planning to make a sketch myself but its to much that i need to learn all at ones. i have codes (i understand) but to make them bleutooth is learning about strings and ints and vals, states.

This sketch is almost perfect and i know its not imposible to add just this one more function to it.

here's a video where i explain the problem, and where you can see what works fine

9

if (val == "up")
{
stepperY.setSpeed(500);
digitalWrite(dirY, LOW);

     stepperY.run();
     //val="";
     
  }


  if (val == "down") 
  {
stepperY.setSpeed(500);
     digitalWrite(dirY, HIGH);
     
     stepperY.run();
     //val="";
     
  }

result in the same movement

10

Problem solved

if (val == "up")
{
stepperY.setSpeed(2500);

stepperY.moveTo(stepperY.currentPosition()+1000);

stepperY.runSpeedToPosition();

}

if (val == "down")
{
stepperY.setSpeed(2500);

stepperY.moveTo(stepperY.currentPosition()-1000);
stepperY.runSpeedToPosition();

}

if (val == "left")
{
stepperX.setSpeed(2500);
stepperX.moveTo(stepperX.currentPosition()+1000);

stepperX.runSpeedToPosition();

}

if (val == "right")
{
stepperX.setSpeed(2500);

stepperX.moveTo(stepperX.currentPosition()-1000);
stepperX.runSpeedToPosition();

}