#include <AccelStepper.h>
AccelStepper stepper(1,2,3);

int val =0;
int previous = 0;
int long newval =0;

void setup() {
  stepper.setMaxSpeed (4800);
  stepper.setAcceleration (4800);
  Serial.begin(9600);
  

}

void loop() {
  
  val = analogRead(A4);
  if ((val> previous+6 ) || (val< previous-6 ))
  {
    int long newval= map(val,0,1023,0,1600);
    stepper.runToNewPosition(newval);
    previous = val;
  }

}