Solved: Can't seem to get my steppers to go in reverse. (

Projects Programming
1

Hi
I'm having some trouble with a little stepper motor setup I have.
I need stepper2 to go in the opposite direction and I thought I just put a negative value instead. But it keeps going in the same direction. I've tried negative values all over the place and switched the pinning around, but I can't get it to work.
My steppers are called 28YBJ-48.
Any help is much appreciated.

#include <AccelStepper.h>
#define HALFSTEP 4

#define motorPin1 4
#define motorPin2 5
#define motorPin3 6
#define motorPin4 7

#define motorPin5 8
#define motorPin6 9
#define motorPin7 10
#define motorPin8 11

AccelStepper stepper1(HALFSTEP, motorPin1, motorPin2, motorPin3, motorPin4);
AccelStepper stepper2(HALFSTEP, motorPin5, motorPin6, motorPin7, motorPin8);

const int buttonPin = 2;
int buttonState = 0;


void setup() {
  
  stepper1.setMaxSpeed(250.0);
  stepper1.setAcceleration(50.0);
  stepper1.move(1);
  
  stepper2.setMaxSpeed(3.0);
  stepper2.setAcceleration(50.0);
  stepper2.move(-1);
  
  pinMode(buttonPin,INPUT);
  
}

void loop() {
  
  buttonState = digitalRead(buttonPin);
  
  if (buttonState == LOW){
    stepper1.move(70000);
    stepper2.move(1000);
  }
  stepper1.run();
  stepper2.run();
}
2

I need stepper2 to go in the opposite direction and I thought I just put a negative value instead.

Really?

  if (buttonState == LOW){
    stepper1.move(70000);
    stepper2.move(1000);
  }

Which one of those values looks negative to you?

3

As I said. Putting a negative value didn't work. I need stepper2 to do the opposite of what it's doing in the code above. I may not be smart, but I'm not an idiot.

4

I'm not an idiot.

But you did post code that is not what you are actually using. Well, good luck getting THAT code to work.

5

This is the code I'm using. When a change doesn't do what I expect, I change it back. I needed it to go the opposite direction and thought putting a negative value would do it. It didn't, so I changed it back. I was probably not clear enough in my initial post.
edit: talking nonsense.

6

Found this and it solved my issues. Accel stepper library with support for 28byj-48 motor - Libraries - Arduino Forum