#include <Button.h>
#define dirPin 2
#define stepPin 3
//#define stepsPerRevolution 200
Button button1(4);
Button button2(5);
const int stepDelay = 10;
bool button1Pressed = false;
bool button2Pressed = false;

void setup() {
  // Declare pins as output:
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT); 
  button1.begin();
  button2.begin();
}

void loop() {
 if (button1.pressed()){
  button1Pressed = true;
  while (button1Pressed){
    digitalWrite(dirPin, HIGH);
    digitalWrite(stepPin, HIGH);
    delay(stepDelay);
    digitalWrite(stepPin, LOW);
    delay(stepDelay);
    if (button1.released()){
      button1Pressed = false;
    }
  }
 }
  if (button2.pressed()){
  button2Pressed = true;
  while (button2Pressed){
    digitalWrite(dirPin, LOW);
    digitalWrite(stepPin, HIGH);
    delay(stepDelay);
    digitalWrite(stepPin, LOW);
    delay(stepDelay);
    if (button2.released()){
      button2Pressed = false;
    }
  }
 }
}