const int buttonPin = 11;
const int ledPin = 13;
const int buzzer = 9;
int ledState = HIGH;
int buttonState = LOW;
int lastButtonState = LOW;
int pause_value = 400; // depending on your skill and how fast your fingers are you can change this value to make typing a message faster or slower
long signal_length = 0;
long pause = 0;
String morse = "";
String dash = "-";
String dot = "*";
boolean cheker = false;
boolean linecheker = false;
long lastDebounceTime = 0;
long debounceDelay = 50;
void setup()
{
Serial.begin(9600);
pinMode(buttonPin, INPUT);
pinMode(ledPin, OUTPUT);
pinMode(buzzer, OUTPUT);
Serial.println("Welcome to Arduino-Uno morse ");
Serial.println("Press button to start making morse code");
while(!digitalRead(buttonPin));
}
void loop() {
buttonState = digitalRead(buttonPin);
if (buttonState && lastButtonState) // basic state machine depending on the state of the signal from the button
{
++signal_length;
if (signal_length<2*pause_value) //this help to notice that there is a change in the signal length aka that its not a dot anymore but a dash
{ // best use for the measuring of signal_length would be use of the millis() but this was used for simplicity
tone(buzzer, 1500) ;
}
else
{
tone(buzzer, 1000) ;
}
}
else if(!buttonState && lastButtonState) //this part of the code happens when the button is released and it send either * or - into the buffer
{
if (signal_length>50 && signal_length<2*pause_value )
{
morse = morse + dot;
}
else if (signal_length>2*pause_value)
{
morse = morse + dash;
}
signal_length=0;
digitalWrite(13, LOW);
noTone(buzzer);
}
else if(buttonState && !lastButtonState) // this part happens when the button is pressed and its use to reset several values
{
pause=0;
digitalWrite(13, HIGH);
cheker = true;
linecheker = true;
}
else if (!buttonState && !lastButtonState)
{
++pause;
if (( pause>3*pause_value ) && (cheker))
{
printaj(morse);
cheker = false;
morse = "";
}
if ((pause>15*pause_value) && (linecheker))
{
Serial.println();
linecheker = false;
}
}
lastButtonState=buttonState;
delay(1);
}
void printaj(String prevodilac) //ugly part of the code but it works fine
{ //compare morse string to known morse values and print out the letter or a number
//the code is written based on the international morse code, one thing i changed is that insted of typing a special string to end the line it happens with enough delay
if (prevodilac=="*-")
Serial.print("A");
else if (prevodilac=="-***")
Serial.print("B");
else if (prevodilac=="-*-*")
Serial.print("C");
else if (prevodilac=="-**")
Serial.print("D");
else if (prevodilac=="*")
Serial.print("E");
else if (prevodilac=="**-*")
Serial.print("F");
else if (prevodilac=="--*")
Serial.print("G");
else if (prevodilac=="****")
Serial.print("H");
else if (prevodilac=="**")
Serial.print("I");
else if (prevodilac=="*---")
Serial.print("J");
else if (prevodilac=="-*-")
Serial.print("K");
else if (prevodilac=="*-**")
Serial.print("L");
else if (prevodilac=="--")
Serial.print("M");
else if (prevodilac=="-*")
Serial.print("N");
else if (prevodilac=="---")
Serial.print("O");
else if (prevodilac=="*--*")
Serial.print("P");
else if (prevodilac=="--*-")
Serial.print("Q");
else if (prevodilac=="*-*")
Serial.print("R");
else if (prevodilac=="***")
Serial.print("S");
else if (prevodilac=="-")
Serial.print("T");
else if (prevodilac=="**-")
Serial.print("U");
else if (prevodilac=="***-")
Serial.print("V");
else if (prevodilac=="*--")
Serial.print("W");
else if (prevodilac=="-**-")
Serial.print("X");
else if (prevodilac=="-*--")
Serial.print("Y");
else if (prevodilac=="--**")
Serial.print("Z");
else if (prevodilac=="*----")
Serial.print("1");
else if (prevodilac=="**---")
Serial.print("2");
else if (prevodilac=="***--")
Serial.print("3");
else if (prevodilac=="****-")
Serial.print("4");
else if (prevodilac=="*****")
Serial.print("5");
else if (prevodilac=="-****")
Serial.print("6");
else if (prevodilac=="--***")
Serial.print("7");
else if (prevodilac=="---**")
Serial.print("8");
else if (prevodilac=="----*")
Serial.print("9");
else if (prevodilac=="-----")
Serial.print("0");
else if (prevodilac=="*-*-*-")
break;
prevodilac="";
}
I have this code and I want to change when the result will be printed.
I want to print the message only when I will type "star_star_star_ " (star =* )that means finish at morse code so untill that time somehow I need to store the results?
