#include <Stepper.h>
const int MA = 200;
Stepper Ms(MA,8,9,10,11);
int speed = 0;
void setup() {
  Serial.begin(9600);
  Ms.setSpeed(1);
  speed = 1;
}

void loop() {
  int var = map(analogRead(A0), 0, 1023, 0, 255);
  if(var != 0){
    speed = var;
    Ms.setSpeed(var);
    Ms.step(1);
  }else if(var == 0){
    Ms.setSpeed(1);
  }

}