Controlling stepper motors via serial monitor - AccelStepper library

Projects Programming
13

Robin2:
You did not post the code in which you removed that line.

#include <AccelStepper.h>

AccelStepper stepper1(AccelStepper::FULL4WIRE, 5, 6, 7, 8);
AccelStepper stepper2(AccelStepper::FULL4WIRE, 9, 10, 11, 12);

int movement = 360;
int start_var = 0;

void setup()
{  
    Serial.begin(9600);
    
    stepper1.setMaxSpeed(200.0);
    stepper1.setAcceleration(100.0);
    //stepper1.moveTo(movement);
    
    stepper2.setMaxSpeed(200.0);
    stepper2.setAcceleration(100.0);
    //stepper2.moveTo(movement);
}
   
    char inBuffer = "";

void loop()
{
   
    if(Serial.available()>0)
    {
      inBuffer = Serial.read();
    }
       
    if (inBuffer == 'a')
    {
      Serial.println("test point 1");
      if (stepper1.distanceToGo() == 0)
      stepper1.moveTo(-stepper1.currentPosition());
    }
    
    
    if (inBuffer == 'b')
    {
       Serial.println("test point 2");      
       if (stepper2.distanceToGo() == 0)
       stepper2.moveTo(-stepper2.currentPosition());
    }
    
    stepper1.run();
    stepper2.run();
    inBuffer = "";
}

Commented them out from setup.

Robin2:
I don't like this style of code

stepper1.moveTo(-stepper1.currentPosition());

because you can't see the actual value that is being passed to moveTo()

If this was my project I would calculate the new moveTo value in a variable so I could print it if I needed to. Something like

newStepperPos = -stepper1.currentPosition;

stepper1.moveTo(newStepperPos);

That was how it came in the example program, am gonna leave it as it is for the moment. Thanks for the help!