String Sentence = "";   //

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(D6, OUTPUT);
  digitalWrite(26, HIGH);

  Serial.begin(9600);
  Serial.println("Welcome to the Morse Translator");  
}


//Functions
void dot(){ //Function that makes a dot with the led
  digitalWrite(D6, HIGH); //Turn on the LED 
  delay(500); // Delay of 0.5 seconds
  digitalWrite(D6, LOW); //Turn off the LED
  delay(500); // Delay of 0.5 seconds
}

void line(){ //Function that makes a line with the led
  digitalWrite(D6, HIGH); //Turn on the LED
  delay(1000); //Delay of 1 second
  digitalWrite(D6, LOW); //Turn off the LED
  delay(500); //Delay of 0.5 seconds
}


// the loop function runs over and over again forever
void loop()   
{  
  //Read sentence
  delay(5000); //Delay of 5 seconds
  Serial.println("Write the sentence you want to translate into Morse code on the Message section");  //Prints the action I want the user to make
  delay(500); //Delay of 5 seconds
  while (Serial.available() == 0){} //Wait for user input  
  Sentence = Serial.readString(); //Saves the user input on the String "Sentence"
  Serial.println("-------------------------"); //Generates a separation
  
  //Translating the sentence
  for (int i = 0; i < Sentence.length(); i++){ //Action that will be repeated for each character in the sentence
    if (Sentence[i] == 'A' || Sentence[i] == 'a') { //If the character is A o a, this action will be made
      Serial.println("A = . _"); //Prints the letter and the morse code
      dot(); //Calls the function "dot" to create a the "." with the led
      line(); //Calls the function "line" to create a the "-" with the led
    } 
    else if (Sentence[i] == 'B' || Sentence[i] == 'b') { //If the character is B or b, this action will be made
      Serial.println("B = _ . . . "); //Prints the letter and the morse code
      line(); //Calls the function "line" to create a the "-" with the led
      dot(); //Calls the function "dot" to create a the "." with the led
      dot(); //Calls the function "dot" to create a the "." with the led
    }
    else if (Sentence[i] == 'C' || Sentence[i] == 'c') {
      Serial.println("C = _ . _ . ");
      line();
      dot();
      line();
      dot();
    } 
    else if (Sentence[i] == 'D' || Sentence[i] == 'd') {
      Serial.println("D = _ . . ");
      line();
      dot();
    } 
    else if (Sentence[i] == 'E' || Sentence[i] == 'e') {
      Serial.println("E = . ");
      dot();
    } 
    else if (Sentence[i] == 'F' || Sentence[i] == 'f') {
      Serial.println("F = _ . . ");
      dot();
      dot();
      line();
      dot();
    } 
    else if (Sentence[i] == 'G' || Sentence[i] == 'g') {
      Serial.println("G = _ _ . ");
      line();
      line();
      dot();
    } 
    else if (Sentence[i] == 'H' || Sentence[i] == 'h') {
      Serial.println("H = . . . . ");
      dot();
      dot();
      dot();
      dot();
    } 
    else if (Sentence[i] == 'I' || Sentence[i] == 'i') {
      Serial.println("I = . . ");
      dot();
      dot();
    } 
    else if (Sentence[i] == 'J' || Sentence[i] == 'j') {
      Serial.println("J = . - - - ");
      dot();
      line();
      line();
      line();
    } 
    else if (Sentence[i] == 'K' || Sentence[i] == 'k') {
      Serial.println("K = - . - ");
      line();
      dot();
      line();
    } 
    else if (Sentence[i] == 'L' || Sentence[i] == 'l') {
      Serial.println("L = . - . . ");
      dot();
      line();
      dot();
      dot();
    } 
    else if (Sentence[i] == 'M' || Sentence[i] == 'm') {
      Serial.println("M = - - ");
      line();
      line();
    } 
    else if (Sentence[i] == 'N' || Sentence[i] == 'n') {
      Serial.println("N = - . ");
      line();
      dot();
    } 
    else if (Sentence[i] == 'O' || Sentence[i] == 'o') {
      Serial.println("O = - - - ");
      line();
      line();
      line();
    } 
    else if (Sentence[i] == 'P' || Sentence[i] == 'p') {
      Serial.println("P = . - - . ");
      dot();
      line();
      line();
      dot();
    } 
    else if (Sentence[i] == 'Q' || Sentence[i] == 'q') {
      Serial.println("Q = - - . - ");
      line();
      line();
      dot();
      line();
    } 
    else if (Sentence[i] == 'R' || Sentence[i] == 'r') {
      Serial.println("R = . - . ");
      line();
      dot();
      line();
    } 
    else if (Sentence[i] == 'S' || Sentence[i] == 's') {
      Serial.println("S = . . . ");
      dot();
      dot();
      dot();
    } 
    else if (Sentence[i] == 'T' || Sentence[i] == 't') {
      Serial.println("T = - ");
      line();
    } 
    else if (Sentence[i] == 'U' || Sentence[i] == 'u') {
      Serial.println("U = . . - ");
      dot();
      dot();
      line();
    } 
    else if (Sentence[i] == 'V' || Sentence[i] == 'v') {
      Serial.println("V = . . . - ");
      dot();
      dot();
      dot();
      line();
    } 
    else if (Sentence[i] == 'W' || Sentence[i] == 'w') {
      Serial.println("W = . - - ");
      dot();
      line();
      line();
    } 
    else if (Sentence[i] == 'X' || Sentence[i] == 'x') {
      Serial.println("X = - . . - ");
      line();
      dot();
      dot();
      line();
    } 
    else if (Sentence[i] == 'Y' || Sentence[i] == 'y') {
      Serial.println("Y = - . - - ");
      line();
      dot();
      line();
      line();
    } 
    else if (Sentence[i] == 'Z' || Sentence[i] == 'z') {
      Serial.println("Z = - - . . ");
      line();
      line();
      dot();
      dot();
    } 
    else if (Sentence[i] == ' ') {
      Serial.println("Space");
      delay(2000);
    }
  }
}