Control a Stepper with Arduino and Potentiometer Speed Control

ArduinoSpeedStepper.ino

//Arduino stepper library
#include <Stepper.h>

// different steppers have different
// amount of steps to do a full
// turn of the wheel.
#define STEPS 32

// connections need to be done carefully
// In1-In4 are added in the sequence 1-3-2-4
Stepper stepper(STEPS, 3, 5, 4, 6);

// the number of steps to take
int numSteps;

// Only serial to setup here
void setup() {

  Serial.begin(115200); // start serial
  
}


// loop runs constantly
void loop() {

  // full revolution
  numSteps = (STEPS * 64) /100;

  // max power is 1024
  stepper.setSpeed( getMotorSpeed() );
  
  // take the steps
  // you can reverse direction with -numSteps
  stepper.step(numSteps);
 

}

int getMotorSpeed() {

    // read the sensor value:
  int sensorReading = analogRead(A0);
  Serial.println(sensorReading);
  
  // map it to a range from 0 to 1024:
  int motorSpeed = map(sensorReading, 0, 769, 0, 1024);
  
  // set the motor speed:
  if (motorSpeed > 0) {
    return motorSpeed;
  }

}