// Stepper motor pins setting
#define Am 8
#define Ap 9
#define Bp 10
#define Bm 11

// Press buttons on Arduino
#define btn1 2
#define btn2 3

// Functions to move the stepper motor
void move1(){
  int i=0;
  if(i++<50){
    delay(20);
    digitalWrite(Bm, LOW); digitalWrite(Ap, HIGH);
    delay(20);
    digitalWrite(Ap, LOW); digitalWrite(Bp,HIGH);
    delay(20);
    digitalWrite(Bp,LOW); digitalWrite(Am,HIGH);
    delay(20);
    digitalWrite(Am,LOW); digitalWrite(Bm,HIGH);
  }
}

void move2(){
  int k=0;
  if(k++<50){
    delay(20);
    digitalWrite(Ap, LOW); digitalWrite(Bm, HIGH);
    delay(20);
    digitalWrite(Bm, LOW); digitalWrite(Am,HIGH);
    delay(20);
    digitalWrite(Am,LOW); digitalWrite(Bp,HIGH);
    delay(20);
    digitalWrite(Bp,LOW); digitalWrite(Ap,HIGH);
  }
}

// Variables for storing buttons digital informations
bool var1=0;
bool var2=0;

void setup() {
  pinMode(Ap, OUTPUT);
  pinMode(Am, OUTPUT);
  pinMode(Bm, OUTPUT);
  pinMode(Bp, OUTPUT);

  pinMode(btn1,INPUT);
  pinMode(btn2, INPUT);

}

void loop() {
  var1 = digitalRead(btn1);
  var2 = digitalRead(btn2);

  if(var1==HIGH && var2==LOW){
    move1();
  }


 
if(var1==LOW && var2==HIGH){
    move2();
  }
    
}