INFO: Dieses Forum nutzt Cookies...
Cookies sind für den Betrieb des Forums unverzichtbar. Mit der Nutzung des Forums erklärst Du dich damit einverstanden, dass wir Cookies verwenden.

Es wird in jedem Fall ein Cookie gesetzt um diesen Hinweis nicht mehr zu erhalten. Desweiteren setzen wir Google Adsense und Google Analytics ein.

Antwort schreiben 
  • 0 Bewertungen - 0 im Durchschnitt
  • 1
  • 2
  • 3
  • 4
  • 5
Morse-Decoder nach KF7FHC
19.08.2018, 09:39
Beitrag #1
Morse-Decoder nach KF7FHC
Hallo allerseits,
habe mir diesen Decoder nachgebaut und er funktioniert auch super mit einem 4x20 Display. Allerdings fehlen einige Morsezeichen wie Spruchende ._._. als + auszugeben", Unterbrechung _..._ als = auszugeben und einige andere gewünschte.
Beim letzten (=) wird - ausgegeben.

Gibt es eine Möglichkeit im Sketch, dass man weitere Morsezeichen einfügt bzw. die Unterbrechung richtig stellt?

Ich vermute, das wird ab Zeile 122 gemacht: //Now here is the "Secret sauce",
aber da komme ich nicht weiter. Wie komme ich zur Gegenüberstellung von -.-
und Satzzeichen? Dann könnte ich mir selbst helfen.

Im Anhang sende ich den Sketch. Wer kann mir helfen?

73 de Jordy (Dieter OE6WTD)

WB7FHC's Morse Code Decoder v. 1.1
© 2014, Budd Churchward - WB7FHC
This is an Open Source Project

Search YouTube for 'WB7FHC' to see several videos of this project
as it was developed.

MIT license, all text above must be included in any redistribution

This project makes use a custom built tone decoder module using
the LM567C microchip. Details of this module will eventually be posted
on line. This module allows you to tune to the frequency of a specific
tone while ignoring noice and other tones of different frequencies

The program will automatically adjust to the speed of code that
is being sent. The first few characters may come out wrong while it
homes in on the speed. If you are not seeing solid copy, press the
restart button on your Arduino. You can try adjusting the tone decoder.
Lowering the volume of the incoming CW can also help. If the tone decoder
is not centered on the frequency of the incomming signal, you may have
to fine tune the module as you lower the volume.

The software tracks the speed of the sender's dahs to make
its adjustments. The more dahs you send at the beginning
the sooner it locks into solid copy.

After a reset, the following text is very difficult to lock in on:
'SHE IS HIS SISTER' because there are only two dahs in the whole
phrase and they come near the end. However, if you reset and then
send 'CALL ME WOODY' it will match your speed quite quickly.

This project is built around the 20x4 LCD display. The sketch includes
funtions for word wrap and scrolling. If a word extends beyond the 20
column line, it will drop down to the next line. When the bottom line
is filled, all lines will scroll up one row and new text will continue
to appear at the bottom.

This version makes use of the 4 digit parallel method of driving the

If you are planning on using a 16x2 you will want to make some changes.
Frankly, I don't think scrolling makes sense with only two lines.
Sometimes long words or missed spaces will result in only two words
left on your display. If you don't have a 20x4 (they're really only a
few bucks more) you might want to leave out the word wrap and scrolling.

Hook up your LCD panel to the Arduino using these pins:
LCD pin 1 to GND
LCD pin 2 to +5V
LCD pin 4 to D7
LCD pin 6 to D6
LCD pin 11 to D5
LCD pin 12 to D4
LCD pin 13 to D3
LCD pin 14 to D2
LCD pin 15 to +5V
LCD pin 16 to GND

Data from pin 8 of the LM567C will be fed to D8 on the Arduino
When this pin is HIGH there is no tone detected.
When this pin is LOW a tone of the set frequency has been detected.


#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

int audioPin = 8; // we read data from the tone detector module here
int audio = 1; // will store the value we read on this pin

int LCDline = 1; // keeps track of which line we're printing on
int lineEnd = 21; // One more than number of characters across display
int letterCount = 0; // keeps track of how may characters were printed on the line
int lastWordCount = 0; // keeps track of how may characters are in the current word
int lastSpace = 0; // keeps track of the location of the last 'space'

// The next line stores the text that we are currently printing on a line,
// The charcters in the current word,
// Our top line of text,
// Our second line of text,
// and our third line of text
// For a 20x4 display these are all 20 characters long
char currentLine[] = "12345678901234567890";
char lastWord[] = " ";
char line1[] = " ";
char line2[] = " ";
char line3[] = " ";

boolean ditOrDah = true; // We have either a full dit or a full dah
int dit = 10; // We start by defining a dit as 10 milliseconds

// The following values will auto adjust to the sender's speed
int averageDah = 240; // A dah should be 3 times as long as a dit
int averageWordGap = averageDah; // will auto adjust
long fullWait = 6000; // The time between letters
long waitWait = 6000; // The time between dits and dahs
long newWord = 0; // The time between words

boolean characterDone = true; // A full character has been sent

int downTime = 0; // How long the tone was on in milliseconds
int upTime = 0; // How long the tone was off in milliseconds
int myBounce = 2; // Used as a short delay between key up and down

long startDownTime = 0; // Arduino's internal timer when tone first comes on
long startUpTime = 0; // Arduino's internal timer when tone first goes off

long lastDahTime = 0; // Length of last dah in milliseconds
long lastDitTime = 0; // Length oflast dit in milliseconds
long averageDahTime = 0; // Sloppy Average of length of dahs

boolean justDid = true; // Makes sure we only print one space during long gaps

int myNum = 0; // We will turn dits and dahs into a binary number stored here

// Now here is the 'Secret Sauce'
// The Morse Code is embedded into the binary version of the numbers from 2 - 63
// The place a letter appears here matches myNum that we parsed out of the code
// #'s are miscopied characters
char mySet[] ="##TEMNAIOGKDWRUS##QZYCXBJP#L#FVH09#8###7#####/-61#######2###3#45";
char lcdGuy = ' '; // We will store the actual character decoded here


void setup() {
pinMode(audioPin, INPUT);
pinMode(13,OUTPUT); // We're going to blink Arduino's onboard LED
lcd.begin(20, 4); // Cuzz we have a 20x4 display
lcd.clear(); // Get rid of any garbage that might appear on startup
lcd.print("WB7FHC CW DECODER v5");


void loop() {
audio = digitalRead(audioPin); // What is the tone decoder doing?

if (!audio) keyIsDown(); // LOW, or 0, means tone is being decoded
if (audio) keyIsUp(); // HIGH, or 1, means no tone is there

void keyIsDown() {
// The decoder is detecting our tone
// The LEDs on the decoder and Arduino will blink on in unison
digitalWrite(13,1); // turn on Arduino's LED

if (startUpTime>0){
// We only need to do once, when the key first goes down
startUpTime=0; // clear the 'Key Up' timer
// If we haven't already started our timer, do it now
if (startDownTime == 0){
startDownTime = millis(); // get Arduino's current clock time

characterDone=false; // we're still building a character
ditOrDah=false; // the key is still down we're not done with the tone
delay(myBounce); // Take a short breath here

if (myNum == 0) { // myNum will equal zero at the beginning of a character
myNum = 1; // This is our start bit - it only does this once per letter

void keyIsUp() {
// The decoder does not detect our tone
// The LEDs on the decoder and Arduino will blink off in unison
digitalWrite(13,0); // turn off Arduino's LED

// If we haven't already started our timer, do it now
if (startUpTime == 0){startUpTime = millis();}

// Find out how long we've gone with no tone
// If it is twice as long as a dah print a space
upTime = millis() - startUpTime;
if (upTime<10)return;
if (upTime > (averageDah*2)) {

// Only do this once after the key goes up
if (startDownTime > 0){
downTime = millis() - startDownTime; // how long was the tone on?
startDownTime=0; // clear the 'Key Down' timer

if (!ditOrDah) {
// We don't know if it was a dit or a dah yet
shiftBits(); // let's go find out! And do our Magic with the bits

// If we are still building a character ...
if (!characterDone) {
// Are we done yet?
if (upTime > dit) {
// BINGO! we're done with this one
printCharacter(); // Go figure out what character it was and print it
characterDone=true; // We got him, we're done here
myNum=0; // This sets us up for getting the next start bit
downTime=0; // Reset our keyDown counter

void shiftBits() {
// we know we've got a dit or a dah, let's find out which
// then we will shift the bits in myNum and then add 1 or not add 1

if (downTime < dit / 3) return; // ignore my keybounce

myNum = myNum << 1; // shift bits left
ditOrDah = true; // we will know which one in two lines

// If it is a dit we add 1. If it is a dah we do nothing!
if (downTime < dit) {
myNum++; // add one because it is a dit
} else {

// The next three lines handle the automatic speed adjustment:
averageDah = (downTime+averageDah) / 2; // running average of dahs
dit = averageDah / 3; // normal dit would be this
dit = dit * 2; // double it to get the threshold between dits and dahs

void printCharacter() {
justDid = false; // OK to print a space again after this

// Punctuation marks will make a BIG myNum
if (myNum > 63) {
printPunctuation(); // The value we parsed is bigger than our character array
// It is probably a punctuation mark so go figure it out.
return; // Go back to the main loop(), we're done here.
lcdGuy = mySet[myNum]; // Find the letter in the character set
sendToLCD(); // Go figure out where to put in on the display

void printSpace() {
if (justDid) return; // only one space, no matter how long the gap
justDid = true; // so we don't do this twice

// We keep track of the average gap between words and bump it up 20 milliseconds
// do avoid false spaces within the word
averageWordGap = ((averageWordGap + upTime) / 2) + 20;

lastWordCount=0; // start counting length of word again
currentLine[letterCount]=' '; // and a space to the variable that stores the current line
lastSpace=letterCount; // keep track of this, our last, space

// Now we need to clear all the characters out of our last word array
for (int i=0; i<20; i++) {
lastWord[i]=' ';

lcdGuy=' '; // this is going to go to the LCD

// We don't need to print the space if we are at the very end of the line
if (letterCount < 20) {
sendToLCD(); // go figure out where to put it on the display

void printPunctuation() {
// Punctuation marks are made up of more dits and dahs than
// letters and numbers. Rather than extend the character array
// out to reach these higher numbers we will simply check for
// them here. This funtion only gets called when myNum is greater than 63

// Thanks to Jack Purdum for the changes in this function
// The original uses if then statements and only had 3 punctuation
// marks. Then as I was copying code off of web sites I added
// characters we don't normally see on the air and the list got
// a little long. Using 'switch' to handle them is much better.

switch (myNum) {
case 71:
lcdGuy = ':';
case 76:
lcdGuy = ',';
case 84:
lcdGuy = '!';
case 94:
lcdGuy = '-';
case 97:
lcdGuy = 39; // Apostrophe
case 101:
lcdGuy = '@';
case 106:
lcdGuy = '.';
case 115:
lcdGuy = '?';
case 246:
lcdGuy = '$';
case 122:
lcdGuy = 's';
lcdGuy = 'k';
lcdGuy = '#'; // Should not get here
sendToLCD(); // go figure out where to put it on the display

void sendToLCD(){
// Do this only if the character is a 'space'
if (lcdGuy > ' '){
lastWord[lastWordCount] = lcdGuy; // store the space at the end of the array
if (lastWordCount < lineEnd - 1) {
lastWordCount++; // only bump up the counter if we haven't reached the end of the line
currentLine[letterCount] = lcdGuy; // now store the character in our current line array

letterCount++; // we're counting the number of characters on the line

// If we have reached the end of the line we will go do some chores
if (letterCount == lineEnd) {
newLine(); // check for word wrap and get ready for the next line
return; // so we don't need to do anything more here

lcd.print(lcdGuy); // print our character at the current cursor location


// The following functions handle word wrapping and line scrolling for a 4 line display //

void newLine() {
// sendToLCD() will call this routine when we reach the end of the line
if (lastSpace == 0){
// We just printed an entire line without any spaces in it.
// We cannot word wrap this one so this character has to go at
// the beginning of the next line.

// First we need to clear all the characters out of our last word array
for (int i=0; i<20; i++) {
lastWord[i]=' ';

lastWord[0]=lcdGuy; // store this character in the first position of our next word
lastWordCount=1; // set the length to 1

truncateOverFlow(); // Trim off the first part of a word that needs to go on the next line
linePrep(); // Store the current line so we can move it up later
reprintOverFlow(); // Print the truncated text and space padding on the next line

void truncateOverFlow(){
// Our word is running off the end of the line so we will
// chop it off at the last space and put it at the beginning of the next line

if (lastSpace==0) {return;} // Don't do this if there was no space in the last line

// Move the cursor to the place where the last space was printed on the current line

letterCount = lastSpace; // Change the letter count to this new shorter length

// Print 'spaces' over the top of all the letters we don't want here any more
for (int i = lastSpace; i < 20; i++) {
lcd.print(' '); // This space goes on the display
currentLine[i] = ' '; // This space goes in our array

void linePrep(){
LCDline++; // This is our line number, we make it one higher

// What we do next depends on which line we are moving to
// The first three cases are pretty simple because we working on a cleared
// screen. When we get to the bottom, though, we need to do more.
switch (LCDline) {
case 1:
// We just finished line 0
// don't need to do anything because this for the top line
// it is going to be thrown out when we scroll anyway.
case 2:
// We just finished line 1
// We are going to move the contents of our current line into the line1 array
for (int j=0; j<20; j++){
line1[j] = currentLine[j];
case 3:
// We just finished line 2
// We are going to move the contents of our current line into the line2 holding bin
for (int j=0; j<20; j++){
line2[j] = currentLine[j];
case 4:
// We just finished line 3
// We are going to move the contents of our current line into the line3 holding bin
for (int j=0; j<20; j++){
line3[j] = currentLine[j];
//This is our bottom line so we will keep coming back here
LCDline = 3; //repeat this line over and over now. There is no such thing as line 4

myScroll(); //move everything up a line so we can do the bottom one again


void myScroll(){
// We will move each line of text up one row

int i = 0; // we will use this variables in all our for loops

lcd.setCursor(0,0); // Move the cursor to the top left corner of the display
lcd.print(line1); // Print line1 here. Line1 is our second line,
// our top line is line0 ... on the next scroll
// we toss this away so we don't store line0 anywhere

// Move everything stored in our line2 array into our line1 array
for (i = 0; i < 20; i++) {
line1[i] = line2[i];

lcd.setCursor(0,1); // Move the cursor to the beginning of the second line
lcd.print(line1); // Print the new line1 here

// Move everything stored in our line3 array into our line2 array
for (i = 0; i < 20; i++) {
lcd.setCursor(0,2); // Move the cursor to the beginning of the third line
lcd.print(line2); // Print the new line2 here

// Move everything stored in our currentLine array into our line3 array
for (i = 0; i < 20; i++) {
line3[i] = currentLine[i];


void reprintOverFlow(){
// Here we put the word that wouldn't fit at the end of the previous line
// Back on the display at the beginning of the new line

// Load up our current line array with what we have so far
for (int i = 0; i < 20; i++) {
currentLine[i] = lastWord[i];
lcd.setCursor(0, LCDline); // Move the cursor to the beginning of our new line
lcd.print(lastWord); // Print the stuff we just took off the previous line
letterCount = lastWordCount; // Set up our character counter to match the text
lcd.setCursor(letterCount, LCDline);
lastSpace=0; // clear the last space pointer
lastWordCount=0; // clear the last word length
Alle Beiträge dieses Benutzers finden
Diese Nachricht in einer Antwort zitieren
19.08.2018, 10:50
Beitrag #2
RE: Morse-Decoder nach KF7FHC
Warum setzt du den Sketch nicht in Code-Tags ?
Warum fragst du wegen deines Problems nicht den Autor ?
Wie das mit Code-Tags geht, kannst du nachlesen, z.B. hier.
Dann kann man den auch richtig lesen.

Gruß Dieter

I2C = weniger ist mehr: weniger Kabel, mehr Probleme. Cool
Alle Beiträge dieses Benutzers finden
Diese Nachricht in einer Antwort zitieren
Antwort schreiben 

Gehe zu:

Benutzer, die gerade dieses Thema anschauen: 1 Gast/Gäste