#include <Stepper.h>

const int stepsPerRevolution = 200; //motor max speed

//stepper library on pins
Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11);
Stepper myStepper1(stepsPerRevolution, 4, 5, 6, 7);
void setup() {
  // speed
  myStepper.setSpeed(1000);
  myStepper1.setSpeed(40);
  // initialize serial port:
  Serial.begin(9600);
}

void loop() {
  // UP DOWN in one direction:
  myStepper1.step(stepsPerRevolution);
  //opposite direction for LEFT RIGHT
  myStepper.step(10000);
  delay(500);
  myStepper.step(-10000);
  delay(500);
}