int Dpin1 = 13;
int PWM1  = 12;
int Dpin2 = 11;
int PWM2  = 10;
int Dpin3 = 9;
int PWM3  = 8;
int Dpin4 = 7;
int PWM4  = 6;

int t = 100;
int led[] = {Dpin1,PWM1,Dpin2,PWM2,Dpin3,PWM3,Dpin4,PWM4};
int turn = 1;

void printMenu(){
  Serial.print("Menu\n");
  Serial.println("A for Pattern 1");
  Serial.println("B for Pattern 2");
  Serial.println("C for Pattern 3");
  Serial.println("D for Pattern 4");
  Serial.println("E for Pattern 5");
}

void setup() {
  for(int i = 0; i <= 8; i++){
    pinMode(led[i],OUTPUT); 
  }
  Serial.begin(9600);
  printMenu();
}


void loop() {
   while(Serial.available()){
    char j = (char)Serial.read();
    if(j == 'A'){
      for(int i = 0; i<=turn; i++){
        for(int i = 0; i <= 8; i++){
          digitalWrite(led[i],HIGH);
          delay(t);
          digitalWrite(led[i],LOW);
      }
        for(int i = 8; i >= 0; i--){
          digitalWrite(led[i],HIGH);
          delay(t);
          digitalWrite(led[i],LOW);
        }
      } 
    }


    if(j == 'B'){
      for(int i = 0; i<=turn; i++){ 
        for(int i = 0; i<=8; i=i+1){
          digitalWrite(led[i],HIGH);
          delay(t);
          digitalWrite(led[i],LOW); 
        }
        for(int i = 8; i>=0; i=i-1){
          digitalWrite(led[i],HIGH);
          delay(t);
          digitalWrite(led[i],LOW);
        }
      }
    }


    if(j == 'C'){
      for(int i = 0; i<=turn; i++){
        for(int i = 0; i <= 8; i++){
          digitalWrite(led[i],HIGH);
          delay(t);
        }
        for(int i = 8; i >= 0; i--){
          digitalWrite(led[i],LOW);
          delay(t);
        }
      }
    }


    if(j == 'D'){
      for(int i = 0; i <= turn; i++){
        for(int i = 0; i <= 3; i++){
          digitalWrite(led[i],HIGH);
        }
      delay(500);
        for(int i = 0; i <= 4; i++){
          digitalWrite(led[i],LOW);
        }
      
        for(int i = 4; i <= 8; i++){
          digitalWrite(led[i],HIGH);
        }
      delay(500);
        for(int i = 4; i <= 8; i++){
          digitalWrite(led[i],LOW);
        }
      }
    }


    if(j == 'E'){
      for(int i = 0; i <= turn; i++){
        for(int i = 0; i <= 8; i++){
          digitalWrite(led[i],HIGH);
          delay(t);
        }
        for(int i = 0; i <= 8; i++){
          digitalWrite(led[i],LOW);
          delay(t);
        }
      }
    }


  }
}