#include <Stepper.h>

#define VERT_PIN A4
#define HORZ_PIN A5

const int stepsPerRevolution = 400;  // change this to fit the number of steps per revolution
Stepper myStepper1(stepsPerRevolution, 8, 9, 10, 11);
Stepper myStepper2(stepsPerRevolution, 4, 5, 6, 7);

void setup() {
  Serial.begin(9600);
  pinMode(A0, INPUT);
  pinMode(VERT_PIN, INPUT);
  pinMode(HORZ_PIN, INPUT);
}

void loop() {

  int value = analogRead(A0);
  value = map(value, 0, 1023, 0, 90);
  Serial.println(value);
  int vert = analogRead(VERT_PIN);
  int horz = analogRead(HORZ_PIN);
  horz = map(horz, 0, 1023, -1, 1);
  vert = map(vert, 0, 1023, -1, 1);
  Serial.println(horz);

  if (value > 0) {
    myStepper1.setSpeed(value);
    myStepper2.setSpeed(value);
  }
  if ((horz == 1) || (horz == -1)) {
    myStepper1.step(1 * horz);
    myStepper2.step(1 * horz);
  } else {
    if (vert == 1) {
      myStepper1.step(1);
      myStepper2.step(-1);
    }
    if (vert == (-1)) {
      myStepper1.step(-1);
      myStepper2.step(1);
    }
  }
  delay(10);
}