Stepper motor Potentiometer tutorial for step/dir pins

Projects Programming
1

I am using a driver board that is set up to control my stepper motor via a Step and Direction pin. I wanted to try out the stepper motor knob tutorial () but it uses 4 pins to control the stepper motor. Is there a stepper motor knob tutorial out there for the 2 pin (dir/step) setup?

2

Just use 2 pins in the setup not 4 .

Don't remember which is which but it's just a simple test to see so I will leave that to you.

3

justone:
Just use 2 pins in the setup not 4 .

Don't remember which is which but it's just a simple test to see so I will leave that to you.

Really? It's that simple? Thanks.

4

I am using a driver board that is set up to control my stepper motor via a Step and Direction pin.

Using what code?

5

PaulS:

I am using a driver board that is set up to control my stepper motor via a Step and Direction pin.

Using what code?

/*
 * MotorKnob
 *
 * A stepper motor follows the turns of a potentiometer
 * (or other sensor) on analog input 0.
 *
 * http://www.arduino.cc/en/Reference/Stepper
 * This example code is in the public domain.
 */

#include <Stepper.h>

// change this to the number of steps on your motor
#define STEPS 100

// create an instance of the stepper class, specifying
// the number of steps of the motor and the pins it's
// attached to
Stepper stepper(STEPS, 8, 9, 10, 11);

// the previous reading from the analog input
int previous = 0;

void setup()
{
  // set the speed of the motor to 30 RPMs
  stepper.setSpeed(30);
}

void loop()
{
  // get the sensor value
  int val = analogRead(0);

  // move a number of steps equal to the change in the
  // sensor reading
  stepper.step(val - previous);

  // remember the previous value of the sensor
  previous = val;
}

I don't think it's working right. It seems to be going back and forth 90º then turning to a different 90º section and going back and forth between that 90º. Also the pot doesnt have any effect, I am doing to try a different one. The one I hooked up has 6 pins, I have another with the standard 3.

6

Using the other pot I seems to have given me some control over it, I can move it back and forth by turning the pot so I guess it's working. It doesn't seem quite right though.

Check my code tell me if there's anything you see in there that is suspicious.

7

If that's the code you are using then it looks like you are still not in dir /step mode of the stepper driver.

All you need is :

Stepper stepper (STEPS,8,9);  dir/step
8

justone:
If that's the code you are using then it looks like you are still not in dir /step mode of the stepper driver.

All you need is :

Stepper stepper (STEPS,8,9);  dir/step

error: expected constructor, destructor, or type conversion before '/' token

9

duncan916:

justone:
If that's the code you are using then it looks like you are still not in dir /step mode of the stepper driver.

All you need is :

Stepper stepper (STEPS,8,9);  dir/step

error: expected constructor, destructor, or type conversion before '/' token

Stepper stepper (STEPS,8,9);  //  dir/step (this was a comment referring to pins 8 and 9)