const int dirPin = 3;
const int stepPin = 4;
const int potPin = A0; // Connect potentiometer to analog pin A0
const int stepsPerRevolution = 200;
const int stopThreshold = 50; // Threshold value to determine if the motor should stop
void setup() {
  // Initialize pins
  pinMode(dirPin, OUTPUT);
  pinMode(stepPin, OUTPUT);
  pinMode(potPin, INPUT);
}
void loop() {
  // Read the potentiometer value (0 to 1023)
  int potValue = analogRead(potPin);

  // Determine the delay time based on the potentiometer value
  // The delay time ranges from 5000 microseconds (slow speed) to 500 microseconds (fast speed)
  // If the potentiometer value is below the stop threshold, set delay to a high value (effectively stop)
  int delayTime = (potValue < stopThreshold) ? 10000 : map(potValue, stopThreshold, 1023, 10000, 500);

  // Set motor direction
  digitalWrite(dirPin, HIGH);
 // Perform the stepping
  for (int x = 0; x < stepsPerRevolution; x++) {
    if (potValue >= stopThreshold) { // Only step if the potentiometer is above the stop threshold
      digitalWrite(stepPin, HIGH);
      delayMicroseconds(delayTime);
      digitalWrite(stepPin, LOW);
      delayMicroseconds(delayTime);
    }
  }
  // Add a small delay to allow for the potentiometer reading to settle
  delay(100);}