int red = 10;
int blue = 9;
int green = 8;


void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
  pinMode(LED_BUILTIN, OUTPUT);

  pinMode(red, OUTPUT);

  pinMode(blue, OUTPUT);


  pinMode(green, OUTPUT);

}

void dot(){
  digitalWrite(red, HIGH);
  delay(333);
  digitalWrite(red, LOW);
  delay(200);
}

void dash(){
  digitalWrite(green, HIGH);
  delay(1000);
  digitalWrite(green, LOW);
  delay(200);
}

void space(){
  digitalWrite(blue, HIGH);
  delay(700);
  digitalWrite(blue, LOW);
  delay(200);
}



void loop() {
  // put your main code here, to run repeatedly:
if (Serial.available() > 0){
    char letters = Serial.read();

    if(letters == 'a' || letters == 'A'){
    letA();
  } else if(letters == 'b' || letters == 'B'){
    letB();
  } else if(letters == 'c' || letters == 'C'){
    letC();
  } else if(letters == 'd' || letters == 'D'){
    letD();
  } else if(letters == 'e' || letters == 'E'){
    letE();
  } else if(letters == 'f' || letters == 'F'){
    letF();
  } else if(letters == 'g' || letters == 'G'){
    letG();
  } else if(letters == 'h' || letters == 'H'){
    letH();
  } else if(letters == 'i' || letters == 'I'){
    letI();
  } else if(letters == 'j' || letters == 'J'){
    letJ();
  } else if(letters == 'k' || letters == 'K'){
    letK();
  } else if(letters == 'l' || letters == 'L'){
    letL();
  } else if(letters == 'm' || letters == 'M'){
    letM();
  } else if(letters == 'n' || letters == 'N'){
    letN();
  } else if(letters == 'o' || letters == 'O'){
    letO();
  } else if(letters == 'p' || letters == 'P'){
    letP();
  } else if(letters == 'q' || letters == 'Q'){
    letQ();
  } else if(letters == 'r' || letters == 'R'){
    letR();
  } else if(letters == 's' || letters == 'S'){
    letS();
  } else if(letters == 't' || letters == 'T'){
    letT();
  } else if(letters == 'u' || letters == 'U'){
    letU();
  } else if(letters == 'v' || letters == 'V'){
    letV();
  } else if(letters == 'w' || letters == 'W'){
    letW();
  } else if(letters == 'x' || letters == 'X'){
    letX();
  } else if(letters == 'y' || letters == 'Y'){
    letY();
  } else if(letters == 'z' || letters == 'Z'){
    letZ();
  }


  }

  



}


void letA(){
  Serial.print(".-");
  Serial.print("  ");
  dot();
  dash();
  space();
}
void letB(){
  Serial.print("-...");
  Serial.print("  ");
  dash();
  dot();
  dot();
  dot();
  space();
}

void letC(){
  Serial.print("-.-.");
  Serial.print(" ");
  dash();
  dot();
  dash();
  dot();
  space();
}

void letD(){
  Serial.print("-..");
  Serial.print(" ");
  dash();
  dot();
  dot();
  space();
}

void letE(){
  Serial.print(".");
  Serial.print(" ");
  dot();
  space();
}

void letF(){
  Serial.print("..-.");
  Serial.print(" ");
  dot();
  dot();
  dash();
  dot();
  space();
}

void letG(){
  Serial.print("--.");
  Serial.print(" ");
  dash();
  dash();
  dot();
  space();
}

void letH(){
  Serial.print("....");
  Serial.print(" ");
  dot();
  dot();
  dot();
  dot();
  space();
}

void letI(){
  Serial.print("..");
  Serial.print(" ");
  dot();
  dot();
  space();
}

void letJ(){
  Serial.print(".---");
  Serial.print(" ");
  dot();
  dash();
  dash();
  dash();
  space();
}

void letK(){
  Serial.print("-.-");
  Serial.print(" ");
  dash();
  dot();
  dash();
  space();
}

void letL(){
  Serial.print(".-..");
  Serial.print(" ");
  dot();
  dash();
  dot();
  dot();
  space();
}

void letM(){
  Serial.print("--");
  Serial.print(" ");
  dash();
  dash();
  space();
}

void letN(){
  Serial.print("-.");
  Serial.print(" ");
  dash();
  dot();
  space();
}

void letO(){
  Serial.print("---");
  Serial.print(" ");
  dash();
  dash();
  dash();
  space();
}

void letP(){
  Serial.print(".--.");
  Serial.print(" ");
  dot();
  dash();
  dash();
  dot();
  space();
}

void letQ(){
  Serial.print("--.-");
  Serial.print(" ");
  dash();
  dash();
  dot();
  dash();
  space();
}

void letR(){
  Serial.print(".-.");
  Serial.print(" ");
  dot();
  dash();
  dot();
  space();
}

void letS(){
  Serial.print("...");
  Serial.print(" ");
  dot();
  dot();
  dot();
  space();
}

void letT(){
  Serial.print("-");
  Serial.print(" ");
  dash();
  space();
}

void letU(){
  Serial.print("..-");
  Serial.print(" ");
  dot();
  dot();
  dash();
  space();
}

void letV(){
  Serial.print("...-");
  Serial.print(" ");
  dot();
  dot();
  dot();
  dash();
  space();
}

void letW(){
  Serial.print(".--");
  Serial.print(" ");
  dot();
  dash();
  dash();
  space();
}

void letX(){
  Serial.print("-..-");
  Serial.print(" ");
  dash();
  dot();
  dot();
  dash();
  space();
}

void letY(){
  Serial.print("-.--");
  Serial.print(" ");
  dash();
  dot();
  dash();
  dash();
  space();
}

void letZ(){
  Serial.print("--..");
  Serial.print(" ");
  dash();
  dash();
  dot();
  dot();
  space();
}