Morse Code Communication Using Arduino

Translation of Morse code to text.

Aug 29, 2018

•

73233 views

•

43 respects

lights

security

communication

Devices & Components

Arduino Uno Rev3

LED (generic)

Buzzer

Pushbutton switch 12mm

Jumper wires (generic)

Breadboard (generic)

Resistor 330 ohm

Software & Tools

Arduino IDE

Project description

Code

Morse Code Source CODE

c_cpp

Now you ready to upload Sketch Simply Open Your Arduino IDE and go to toolbar File->Open->MorseCode.io and click upload button

1/*
2  This Program is for demonstration of MORSE CODE Communication   
3  which was use to send information secretly using codes of combinations dots   .  and dashes - 
4  Thanks to open source community
5
6  By Jalal Mansoori
7*/
8
9
10#define   SIZE 26
11const int ledPin=8;
12const int speakerPin=12;
13const int dotButton=2;
14const   int dashButton=7;
15
16String morseCode="";
17String text="";
18int characterAscii=0;
19int   startPos=0, endPos=0;
20int startPos1=0, endPos1=0;
21String characterCode="";
22int   dashButtonState=0;
23int dotButtonState=0;
24
25
26//Array of MorseCode for   letters of English Language A to Z
27String letters[SIZE]={
28
29// A to I
30".-",   "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..",
31// J   to R 
32".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-",   ".-.",
33// S to Z
34"...", "-", "..-", "...-", ".--", "-..-", "-.--",   "--.." 
35};
36
37        
38void setup() {
39  // put your setup code here,   to run once:
40//Getting things Ready
41pinMode(ledPin, OUTPUT);
42pinMode(dotButton,   INPUT);
43pinMode(dashButton, INPUT);
44Serial.begin(9600);
45
46Serial.println("*************************************************************");
47Serial.println("                     Demonstration of Morse Code              ");
48Serial.println("*************************************************************   ");
49Serial.println("\
50Instructions");
51Serial.println("1. First Write   Your Morse code");
52Serial.println("2. When you are done  Write 1 on above input   box and Press Enter or click Send Button ");
53Serial.println("3. For Space between   letters write 2 and Press Enter ");
54Serial.println("4. For Space between words    write 3 and Press Enter ");
55
56Serial.println("5. Thats all Translation   of Morse Code  will then be Shown ");
57
58Serial.println("\
59\
60Enter Your   Morse Code Here  ");
61
62}
63
64
65void loop() {
66  // put your main code   here, to run repeatedly:
67
68while(Serial.available() > 0 ) 
69{
70      int   ascii=Serial.read();
71
72      switch(ascii)
73      {
74        case 49: //   49 is Ascii value of 1
75
76        Serial.print("\
77");
78        morseCode.concat('#');//   Placeing # at the end of morseCode to simplify further processing
79
80         Serial.print("\
81Your   Morse code Translation :  ");
82         
83        endPos1=morseCode.indexOf('#');
84
85         while(endPos1 < morseCode.length() )
86        {
87            extractLetters(morseCode.substring(startPos1,   endPos1)); // This function would extract Letter as name suggest and would convert   code to text SIMPLE!
88           startPos1=endPos1+1;
89           if(startPos1   == morseCode.length() )
90           {
91              break; 
92           }
93            endPos1= morseCode.indexOf('#', startPos1);
94        }
95        startPos1=0;
96         endPos1=0;
97
98        text=""; //  For New Translation   
99        morseCode="";
100         Serial.println("\
101\
102Enter Your Morse Code Here ");
103        
104              
105         break;
106
107        case 50: // 50 is Ascii value of 2
108        
109         morseCode.concat("@");
110        Serial.print("@");
111        delay(200);
112         
113        break;
114
115        case 51: // 51 is Ascii value of 3
116           
117        morseCode.concat("#");
118        Serial.print("#");
119         delay(200);
120        
121        break;
122        
123      }
124      
125}
126
127process();
128
129}
130
131void   turnONLedSpeaker()
132{
133  //Turn ON LED
134  digitalWrite(ledPin, HIGH);
135   tone(speakerPin, 4699, 300); // tone(speakerPin, frequency, duration in milliSec)
136   
137}
138
139void process()
140{
141  
142  dotButtonState=digitalRead(dotButton);
143dashButtonState=digitalRead(dashButton);
144
145
146
147
148   if(dashButtonState == HIGH)
149  {
150    turnONLedSpeaker();
151   
152    morseCode.concat("-");   // Storing code in variable morseCode with the help of concatenation function
153     Serial.print("-");//Prints User entered Code
154    delay(200);
155  }
156   else if(dotButtonState == HIGH)
157  {
158   turnONLedSpeaker();
159  
160   morseCode.concat(".");
161    Serial.print(".");
162   delay(200);
163    
164  }
165  else
166  {
167    //Turn   OFF LED
168    digitalWrite(ledPin, LOW);
169     
170  }
171
172}
173
174char convertIntoText(String   characterCode)
175{
176  characterAscii=65;
177  
178  for(int index=0; index<SIZE;   index++)
179  {
180    if(characterCode == letters[index])
181    {
182      return   characterAscii;   
183    }
184    characterAscii++;  
185  }
186
187}
188
189void   extractLetters(String words)
190{
191        words.concat('@'); // Placeing @ at   the end of word to simplify further processing
192
193        endPos=words.indexOf('@');
194
195         
196        //Loop to extracting single character morse Code from string   of word        
197        while( endPos<words.length() )
198       {
199         characterCode=words.substring(startPos,   endPos);
200         
201         //Now CharacterCode will now convert in text
202
203          text.concat(convertIntoText(characterCode));
204         
205         startPos=endPos+1;
206          characterCode="";
207         
208          // if condition is just to   terminate loop when our extracting single character code is complete thats all
209          if(startPos == words.length() )
210         {
211           break;
212          }
213         
214         endPos=words.indexOf('@', startPos);   
215        
216       }
217                
218        
219        Serial.print(text);
220         Serial.print(" ");
221        startPos=0;
222        endPos=0;
223        text="";     
224  
225}
226
227

/*
  This Program is for demonstration of MORSE CODE Communication   
  which was use to send information secretly using codes of combinations dots   .  and dashes - 
  Thanks to open source community

  By Jalal Mansoori
*/


#define   SIZE 26
const int ledPin=8;
const int speakerPin=12;
const int dotButton=2;
const   int dashButton=7;

String morseCode="";
String text="";
int characterAscii=0;
int   startPos=0, endPos=0;
int startPos1=0, endPos1=0;
String characterCode="";
int   dashButtonState=0;
int dotButtonState=0;


//Array of MorseCode for   letters of English Language A to Z
String letters[SIZE]={

// A to I
".-",   "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..",
// J   to R 
".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-",   ".-.",
// S to Z
"...", "-", "..-", "...-", ".--", "-..-", "-.--",   "--.." 
};

        
void setup() {
  // put your setup code here,   to run once:
//Getting things Ready
pinMode(ledPin, OUTPUT);
pinMode(dotButton,   INPUT);
pinMode(dashButton, INPUT);
Serial.begin(9600);

Serial.println("*************************************************************");
Serial.println("                     Demonstration of Morse Code              ");
Serial.println("*************************************************************   ");
Serial.println("\
Instructions");
Serial.println("1. First Write   Your Morse code");
Serial.println("2. When you are done  Write 1 on above input   box and Press Enter or click Send Button ");
Serial.println("3. For Space between   letters write 2 and Press Enter ");
Serial.println("4. For Space between words    write 3 and Press Enter ");

Serial.println("5. Thats all Translation   of Morse Code  will then be Shown ");

Serial.println("\
\
Enter Your   Morse Code Here  ");

}


void loop() {
  // put your main code   here, to run repeatedly:

while(Serial.available() > 0 ) 
{
      int   ascii=Serial.read();

      switch(ascii)
      {
        case 49: //   49 is Ascii value of 1

        Serial.print("\
");
        morseCode.concat('#');//   Placeing # at the end of morseCode to simplify further processing

         Serial.print("\
Your   Morse code Translation :  ");
         
        endPos1=morseCode.indexOf('#');

         while(endPos1 < morseCode.length() )
        {
            extractLetters(morseCode.substring(startPos1,   endPos1)); // This function would extract Letter as name suggest and would convert   code to text SIMPLE!
           startPos1=endPos1+1;
           if(startPos1   == morseCode.length() )
           {
              break; 
           }
            endPos1= morseCode.indexOf('#', startPos1);
        }
        startPos1=0;
         endPos1=0;

        text=""; //  For New Translation   
        morseCode="";
         Serial.println("\
\
Enter Your Morse Code Here ");
        
              
         break;

        case 50: // 50 is Ascii value of 2
        
         morseCode.concat("@");
        Serial.print("@");
        delay(200);
         
        break;

        case 51: // 51 is Ascii value of 3
           
        morseCode.concat("#");
        Serial.print("#");
         delay(200);
        
        break;
        
      }
      
}

process();

}

void   turnONLedSpeaker()
{
  //Turn ON LED
  digitalWrite(ledPin, HIGH);
   tone(speakerPin, 4699, 300); // tone(speakerPin, frequency, duration in milliSec)
   
}

void process()
{
  
  dotButtonState=digitalRead(dotButton);
dashButtonState=digitalRead(dashButton);




   if(dashButtonState == HIGH)
  {
    turnONLedSpeaker();
   
    morseCode.concat("-");   // Storing code in variable morseCode with the help of concatenation function
     Serial.print("-");//Prints User entered Code
    delay(200);
  }
   else if(dotButtonState == HIGH)
  {
   turnONLedSpeaker();
  
   morseCode.concat(".");
    Serial.print(".");
   delay(200);
    
  }
  else
  {
    //Turn   OFF LED
    digitalWrite(ledPin, LOW);
     
  }

}

char convertIntoText(String   characterCode)
{
  characterAscii=65;
  
  for(int index=0; index<SIZE;   index++)
  {
    if(characterCode == letters[index])
    {
      return   characterAscii;   
    }
    characterAscii++;  
  }

}

void   extractLetters(String words)
{
        words.concat('@'); // Placeing @ at   the end of word to simplify further processing

        endPos=words.indexOf('@');

         
        //Loop to extracting single character morse Code from string   of word        
        while( endPos<words.length() )
       {
         characterCode=words.substring(startPos,   endPos);
         
         //Now CharacterCode will now convert in text

          text.concat(convertIntoText(characterCode));
         
         startPos=endPos+1;
          characterCode="";
         
          // if condition is just to   terminate loop when our extracting single character code is complete thats all
          if(startPos == words.length() )
         {
           break;
          }
         
         endPos=words.indexOf('@', startPos);   
        
       }
                
        
        Serial.print(text);
         Serial.print(" ");
        startPos=0;
        endPos=0;
        text="";     
  
}

Morse Code Source CODE

c_cpp

Now you ready to upload Sketch Simply Open Your Arduino IDE and go to toolbar File->Open->MorseCode.io and click upload button

1/*
2  This Program is for demonstration of MORSE CODE Communication  
3  which was use to send information secretly using codes of combinations dots  .  and dashes - 
4  Thanks to open source community
5
6  By Jalal Mansoori
7*/
8
9
10#define  SIZE 26
11const int ledPin=8;
12const int speakerPin=12;
13const int dotButton=2;
14const  int dashButton=7;
15
16String morseCode="";
17String text="";
18int characterAscii=0;
19int  startPos=0, endPos=0;
20int startPos1=0, endPos1=0;
21String characterCode="";
22int  dashButtonState=0;
23int dotButtonState=0;
24
25
26//Array of MorseCode for  letters of English Language A to Z
27String letters[SIZE]={
28
29// A to I
30".-",  "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..",
31// J  to R 
32".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-",  ".-.",
33// S to Z
34"...", "-", "..-", "...-", ".--", "-..-", "-.--",  "--.." 
35};
36
37        
38void setup() {
39  // put your setup code here,  to run once:
40//Getting things Ready
41pinMode(ledPin, OUTPUT);
42pinMode(dotButton,  INPUT);
43pinMode(dashButton, INPUT);
44Serial.begin(9600);
45
46Serial.println("*************************************************************");
47Serial.println("                    Demonstration of Morse Code              ");
48Serial.println("*************************************************************  ");
49Serial.println("\
50Instructions");
51Serial.println("1. First Write  Your Morse code");
52Serial.println("2. When you are done  Write 1 on above input  box and Press Enter or click Send Button ");
53Serial.println("3. For Space between  letters write 2 and Press Enter ");
54Serial.println("4. For Space between words   write 3 and Press Enter ");
55
56Serial.println("5. Thats all Translation  of Morse Code  will then be Shown ");
57
58Serial.println("\
59\
60Enter Your  Morse Code Here  ");
61
62}
63
64
65void loop() {
66  // put your main code  here, to run repeatedly:
67
68while(Serial.available() > 0 ) 
69{
70      int  ascii=Serial.read();
71
72      switch(ascii)
73      {
74        case 49: //  49 is Ascii value of 1
75
76        Serial.print("\
77");
78        morseCode.concat('#');//  Placeing # at the end of morseCode to simplify further processing
79
80         Serial.print("\
81Your  Morse code Translation :  ");
82         
83        endPos1=morseCode.indexOf('#');
84
85        while(endPos1 < morseCode.length() )
86        {
87            extractLetters(morseCode.substring(startPos1,  endPos1)); // This function would extract Letter as name suggest and would convert  code to text SIMPLE!
88           startPos1=endPos1+1;
89           if(startPos1  == morseCode.length() )
90           {
91              break; 
92           }
93           endPos1= morseCode.indexOf('#', startPos1);
94        }
95        startPos1=0;
96        endPos1=0;
97
98        text=""; //  For New Translation   
99        morseCode="";
100        Serial.println("\
101\
102Enter Your Morse Code Here ");
103        
104              
105        break;
106
107        case 50: // 50 is Ascii value of 2
108        
109        morseCode.concat("@");
110        Serial.print("@");
111        delay(200);
112        
113        break;
114
115        case 51: // 51 is Ascii value of 3
116          
117        morseCode.concat("#");
118        Serial.print("#");
119        delay(200);
120        
121        break;
122        
123      }
124      
125}
126
127process();
128
129}
130
131void  turnONLedSpeaker()
132{
133  //Turn ON LED
134  digitalWrite(ledPin, HIGH);
135  tone(speakerPin, 4699, 300); // tone(speakerPin, frequency, duration in milliSec)
136  
137}
138
139void process()
140{
141  
142  dotButtonState=digitalRead(dotButton);
143dashButtonState=digitalRead(dashButton);
144
145
146
147
148  if(dashButtonState == HIGH)
149  {
150    turnONLedSpeaker();
151   
152    morseCode.concat("-");  // Storing code in variable morseCode with the help of concatenation function
153    Serial.print("-");//Prints User entered Code
154    delay(200);
155  }
156  else if(dotButtonState == HIGH)
157  {
158   turnONLedSpeaker();
159  
160   morseCode.concat(".");
161   Serial.print(".");
162   delay(200);
163    
164  }
165  else
166  {
167    //Turn  OFF LED
168    digitalWrite(ledPin, LOW);
169     
170  }
171
172}
173
174char convertIntoText(String  characterCode)
175{
176  characterAscii=65;
177  
178  for(int index=0; index<SIZE;  index++)
179  {
180    if(characterCode == letters[index])
181    {
182      return  characterAscii;   
183    }
184    characterAscii++;  
185  }
186
187}
188
189void  extractLetters(String words)
190{
191        words.concat('@'); // Placeing @ at  the end of word to simplify further processing
192
193        endPos=words.indexOf('@');
194
195        
196        //Loop to extracting single character morse Code from string  of word        
197        while( endPos<words.length() )
198       {
199         characterCode=words.substring(startPos,  endPos);
200         
201         //Now CharacterCode will now convert in text
202
203         text.concat(convertIntoText(characterCode));
204         
205         startPos=endPos+1;
206         characterCode="";
207         
208          // if condition is just to  terminate loop when our extracting single character code is complete thats all
209         if(startPos == words.length() )
210         {
211           break;
212         }
213         
214         endPos=words.indexOf('@', startPos);   
215       
216       }
217                
218        
219        Serial.print(text);
220        Serial.print(" ");
221        startPos=0;
222        endPos=0;
223        text="";    
224  
225}
226
227

/*
  This Program is for demonstration of MORSE CODE Communication  
  which was use to send information secretly using codes of combinations dots  .  and dashes - 
  Thanks to open source community

  By Jalal Mansoori
*/


#define  SIZE 26
const int ledPin=8;
const int speakerPin=12;
const int dotButton=2;
const  int dashButton=7;

String morseCode="";
String text="";
int characterAscii=0;
int  startPos=0, endPos=0;
int startPos1=0, endPos1=0;
String characterCode="";
int  dashButtonState=0;
int dotButtonState=0;


//Array of MorseCode for  letters of English Language A to Z
String letters[SIZE]={

// A to I
".-",  "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..",
// J  to R 
".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-",  ".-.",
// S to Z
"...", "-", "..-", "...-", ".--", "-..-", "-.--",  "--.." 
};

        
void setup() {
  // put your setup code here,  to run once:
//Getting things Ready
pinMode(ledPin, OUTPUT);
pinMode(dotButton,  INPUT);
pinMode(dashButton, INPUT);
Serial.begin(9600);

Serial.println("*************************************************************");
Serial.println("                    Demonstration of Morse Code              ");
Serial.println("*************************************************************  ");
Serial.println("\
Instructions");
Serial.println("1. First Write  Your Morse code");
Serial.println("2. When you are done  Write 1 on above input  box and Press Enter or click Send Button ");
Serial.println("3. For Space between  letters write 2 and Press Enter ");
Serial.println("4. For Space between words   write 3 and Press Enter ");

Serial.println("5. Thats all Translation  of Morse Code  will then be Shown ");

Serial.println("\
\
Enter Your  Morse Code Here  ");

}


void loop() {
  // put your main code  here, to run repeatedly:

while(Serial.available() > 0 ) 
{
      int  ascii=Serial.read();

      switch(ascii)
      {
        case 49: //  49 is Ascii value of 1

        Serial.print("\
");
        morseCode.concat('#');//  Placeing # at the end of morseCode to simplify further processing

         Serial.print("\
Your  Morse code Translation :  ");
         
        endPos1=morseCode.indexOf('#');

        while(endPos1 < morseCode.length() )
        {
            extractLetters(morseCode.substring(startPos1,  endPos1)); // This function would extract Letter as name suggest and would convert  code to text SIMPLE!
           startPos1=endPos1+1;
           if(startPos1  == morseCode.length() )
           {
              break; 
           }
           endPos1= morseCode.indexOf('#', startPos1);
        }
        startPos1=0;
        endPos1=0;

        text=""; //  For New Translation   
        morseCode="";
        Serial.println("\
\
Enter Your Morse Code Here ");
        
              
        break;

        case 50: // 50 is Ascii value of 2
        
        morseCode.concat("@");
        Serial.print("@");
        delay(200);
        
        break;

        case 51: // 51 is Ascii value of 3
          
        morseCode.concat("#");
        Serial.print("#");
        delay(200);
        
        break;
        
      }
      
}

process();

}

void  turnONLedSpeaker()
{
  //Turn ON LED
  digitalWrite(ledPin, HIGH);
  tone(speakerPin, 4699, 300); // tone(speakerPin, frequency, duration in milliSec)
  
}

void process()
{
  
  dotButtonState=digitalRead(dotButton);
dashButtonState=digitalRead(dashButton);




  if(dashButtonState == HIGH)
  {
    turnONLedSpeaker();
   
    morseCode.concat("-");  // Storing code in variable morseCode with the help of concatenation function
    Serial.print("-");//Prints User entered Code
    delay(200);
  }
  else if(dotButtonState == HIGH)
  {
   turnONLedSpeaker();
  
   morseCode.concat(".");
   Serial.print(".");
   delay(200);
    
  }
  else
  {
    //Turn  OFF LED
    digitalWrite(ledPin, LOW);
     
  }

}

char convertIntoText(String  characterCode)
{
  characterAscii=65;
  
  for(int index=0; index<SIZE;  index++)
  {
    if(characterCode == letters[index])
    {
      return  characterAscii;   
    }
    characterAscii++;  
  }

}

void  extractLetters(String words)
{
        words.concat('@'); // Placeing @ at  the end of word to simplify further processing

        endPos=words.indexOf('@');

        
        //Loop to extracting single character morse Code from string  of word        
        while( endPos<words.length() )
       {
         characterCode=words.substring(startPos,  endPos);
         
         //Now CharacterCode will now convert in text

         text.concat(convertIntoText(characterCode));
         
         startPos=endPos+1;
         characterCode="";
         
          // if condition is just to  terminate loop when our extracting single character code is complete thats all
         if(startPos == words.length() )
         {
           break;
         }
         
         endPos=words.indexOf('@', startPos);   
       
       }
                
        
        Serial.print(text);
        Serial.print(" ");
        startPos=0;
        endPos=0;
        text="";    
  
}

Downloadable files

Circuit Designing on Breadboard

Instructions for Digital Pins From Arduino to breadboard: -> pin D2 is connected to one leg of pushButton1 . -> pin D7 is connected to one leg of pushButton2. -> pin D8 is connected to +ive terminal leg LED through resistor -> And Finally pin D12 is connected to +ive terminal leg Buzzer through resistor And other Connection Look at Schematic Picture and YOU ARE DONE !

Circuit Designing on Breadboard

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