#define motor_pin_1 2 //arduino digital 2
#define motor_pin_2 3 //arduino digital 3
#define motor_pin_3 4 //arduino digital 4
#define motor_pin_4 5 //arduino digital 5

int spin[32] = {
1,0,0,0,
1,0,1,0,
0,0,1,0,
0,1,1,0,
0,1,0,0,
0,1,0,1,
0,0,0,1,
1,0,0,1
};

void setup(){
  pinMode(motor_pin_1,OUTPUT);
  pinMode(motor_pin_2,OUTPUT);
  pinMode(motor_pin_3,OUTPUT);
  pinMode(motor_pin_4,OUTPUT);
 
  pinMode(8,INPUT);
  pinMode(9,INPUT);
}

void loop(){
     if(digitalRead(8) == HIGH){
                    forward(1,3);
     }
     if(digitalRead(9) == HIGH){
                   backward(1,3);
     }
}

void forward(int rep,int dly){
  for(int x=0; x<rep;x++){
     for(int t=0; t<32; t+=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(dly);
     }
  }
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, LOW); 
}

void backward(int rep,int dly){
  for(int x=0; x<rep;x++){
     for(int t=32; t>=0; t-=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(dly);
     }
  }
digitalWrite(motor_pin_1, LOW);
digitalWrite(motor_pin_2, LOW);
digitalWrite(motor_pin_3, LOW);
digitalWrite(motor_pin_4, LOW); 
}

#define motor_pin_1 0 // pin 5  coil 1
#define motor_pin_2 1 // pin 6  coil 1
#define motor_pin_3 3 // pin 2  coil 2
#define motor_pin_4 4 // pin 3  coil 2

int spin[32] = {
1,0,0,0,
1,0,1,0,
0,0,1,0,
0,1,1,0,
0,1,0,0,
0,1,0,1,
0,0,0,1,
1,0,0,1
};

void setup(){
  pinMode(motor_pin_1,OUTPUT);
  pinMode(motor_pin_2,OUTPUT);
  pinMode(motor_pin_3,OUTPUT);
  pinMode(motor_pin_4,OUTPUT);
}

void loop(){
     int buttonRead = analogRead(A1);
     delay(5);
     if(buttonRead > 10 && buttonRead < 200){
                 backward();     
     }else if(buttonRead > 200 && buttonRead < 600){
                 forward();
     }else{
                 park();
     }
}

void forward(){
     for(int t=0; t<32; t+=4){
          digitalWrite(motor_pin_1, spin[t]);
          digitalWrite(motor_pin_2, spin[t+1]);
          digitalWrite(motor_pin_3, spin[t+2]);
          digitalWrite(motor_pin_4, spin[t+3]);
          delay(3);
     }
}

void backward(){
     for(int z=32; z>=0; z-=4){
          digitalWrite(motor_pin_1, spin[z]);
          digitalWrite(motor_pin_2, spin[z+1]);
          digitalWrite(motor_pin_3, spin[z+2]);
          digitalWrite(motor_pin_4, spin[z+3]);
          delay(3);
     }
}

void park(){
    digitalWrite(motor_pin_1, LOW);
    digitalWrite(motor_pin_2, LOW);
    digitalWrite(motor_pin_3, LOW);
    digitalWrite(motor_pin_4, LOW);   
}