/*
* Arduino iambic CW keyer v2.0
* for Ham radio usage
* Richard Chapman
* KC4IFB
* February, 2009
* Richard Chapman KC4IFB published an article in the Sep/Oct 2009 QEX magazine */
// *******************************************************
// Iambic Morse Code Keyer Sketch with added Side-Tone
// added Message keyer and enable poteniometer speed control
// Copyright (c) Bob Anding 2017
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details:
//
// Free Software Foundation, Inc., 59 Temple Place, Suite 330,
// Boston, MA 02111-1307 USA
// PROGRAMMA MODIFICATO DA IK1RLW (ALESSANDRO): AGGIUNTE MEMORIE AL KEYER E PERFEZIONATO IL PESO MANIPOLAZIONE (GENNAIO 2021)
//****************************************************************************************************************************
// I/O pin numbers
#define SPEEDIN 0 // analog pin to read the speed value
#define DOTIN 11 // high -> dot paddle closed
#define DASHIN 12 // high -> dash paddle closed
#define KEYOUT 13 // drives the 2N2222 that closes the key connection
// state of the machine
#define IDLE 0 // doing nothing
#define DASH 1 // playing a dash
#define DOT 2 // playing a dot
#define DELAY 3 // in the dot-length delay between two dot/dashes
// Analog pin for WPM
int sensorPin = A0; // set input pin for the potentiometer
int dotLength; // length of a dot in milliseconds
int dotVal; // value of the dot paddle this sycle of main loop
int dashVal; // value of the dash paddle this cycle of main loop
int oldDotVal; // value of dot paddle last cycle
int oldDashVal; // value of dash paddle last dial
int speedDial; // raw value read from the potentiometer for speed
int currEltEndTime; // what time did the current element start sounding (in milliseconds since powerup)
int currElt; // sate of what the keyer output is sending right now
int nextElt; // state the keyer will go into when current element ends
int lastElt; // previous state of the keyer
int time;
int tonePin =4;
//// BLOCCO MESSAGGI
int msgPin2 = 2; // messaggio 1 pin arduino 2
int msgPin3 = 3; // messaggio 2 """"""""""" 3
int msgPin5 = 5; // messaggio 3 """"""""""" 5
int msgPin6 = 6; // messaggio 4 input"""""" 6
char message2 []={0x15, 0x1b, 0x15, 0x1b, 0x15, 0x1b, 0x09, 0x02, 0x04, 0x0d, 0x3e, 0x12, 0x11, 0x0e, 0x0d}; //messaggio 1 = "CQ CQ CQ DE IK1LBW K"
char message3 []={0x15, 0x1b, 0x15, 0x1b, 0x15, 0x1b, 0x09, 0x02, 0x04, 0x0d, 0x3e, 0x12, 0x11, 0x0e, 0x0d}; //messaggio 2 = "CQ CQ CQ DE IK1LBW K"
char message5 []={0x18, 0x18, 0x18, 0x00, 0x18, 0x18, 0x18, 0x09, 0x02, 0x04, 0x0d, 0x3e, 0x12, 0x11, 0x0e, 0X29, 0X11}; //messaggio 3 = "VVV VVV DE IK1LBW/B"
char message6 []={0x15, 0x1b, 0x15, 0x1b, 0x15, 0x1b, 0x09, 0x02, 0x04, 0x0d, 0x3e, 0x12, 0x11, 0x0e, 0x0d}; //messaggio 4 = "CQ CQ CQ DE IK1LBW K"
///////// LISTA CARATTERI X MESSAGGIO CW.....ESPRESSI IN ESADECIMALE //////
/**
* LISTA CARATTER ESADECIMALI (separare ogni carattere da una virgola):
*
0x06 = a 0x11 = b 0x15 = c 0x09 = d 0x02 = e 0x14 = f 0x0b = g 0x10 = h 0x04 = i 0x1e = j 0x0d = k 0x12 = l 0x07 = m 0x05 = n 0x0f = o
0x16 = p 0x1b = q 0x0a = r 0x08 = s 0x03 = t 0x0c = u 0x18 = v 0x0e = w 0x19 = x 0x1d = y 0x13 = z
0x3e = 1 0x3c = 2 0x38 = 3 0x30 = 4 0x20 = 5 0x21 = 6 0x23 = 7 0x27 = 8 0x2f = 9 0x3f = 0
0x29 = / 0x4c = ? 0x00 = word space 0xff = eom 0x6a = '.' 0x73 = ',' 0x56 = '@'
* ULTERIORI SIMBOLOGIE DI CARATTERI POSSONO ESSERE INSERITE....
*
* 0x68 = '*' SK 0xd1 = '^' BK 0x2a = '+' AR 0x31 = '$' BT
*/
int msglength2 = sizeof(message2) / sizeof(message2[0]); //
int msglength3 = sizeof(message3) / sizeof(message3[0]); //
int msglength5 = sizeof(message5) / sizeof(message5[0]); //
int msglength6 = sizeof(message6) / sizeof(message6[0]); //
//////////////////////////////////
void setup() // run once, when the sketch starts
{
pinMode(KEYOUT, OUTPUT); // sets modes on the i/o pins
pinMode(DOTIN, INPUT);
pinMode(DASHIN, INPUT);
pinMode(tonePin,OUTPUT); // AUDIO OUTPUT pin
pinMode(13,OUTPUT); // PTT OUTPUT pin
pinMode(msgPin2, INPUT_PULLUP);
pinMode(msgPin3, INPUT_PULLUP);
pinMode(msgPin5, INPUT_PULLUP);
pinMode(msgPin6, INPUT_PULLUP);
// no need to set SPEED pin as input since it is analog
digitalWrite(KEYOUT, LOW); // initially the key is open
// activate internal pullup resistors
digitalWrite(DOTIN,HIGH);
digitalWrite(DASHIN,HIGH);
// initialize the state variables
lastElt = IDLE;
currElt = IDLE;
nextElt = IDLE;
time = millis();
currEltEndTime = time;
}
void loop() // run over and over again
{
loadWPM( (int)(analogRead(sensorPin) * (20./1023.) + .5));
//loadWPM(15); // Fix speed at 15 WPM
dotLength = ((analogRead(sensorPin) * (65./1023.) + 35) ); //load CW message WPM
if ((digitalRead(msgPin2) == LOW)) Msg2(); // if message is low play message 2
if ((digitalRead(msgPin3) == LOW)) Msg3(); // if message is low play message 3
if ((digitalRead(msgPin5) == LOW)) Msg5(); // if message is low play message 5
if ((digitalRead(msgPin6) == LOW)) Msg6(); // if message is low play message 6
// get the speed (need to do this every iteration)
//speedDial = analogRead(SPEEDIN);
//dotLenght = 1200 / ( 5 + (speedDial/64));
// read the paddles
oldDotVal = dotVal; // save the old values to detect a transition, so you can debounce
oldDashVal = dashVal;
dotVal = digitalRead(DOTIN); // read the current values of the paddles
dashVal = digitalRead(DASHIN);
// short delay for a debounce -- turns out not needed
//if ((oldDotVal != dotVal) || oldDashVal != dashVal) {
// delay(5);
//}
//get the current time
time = millis();
switch(currElt) { // cases based on what current state is
case DASH:
if ((dotVal == LOW) && (nextElt == IDLE)) { // going from dash to iambic mode
nextElt = DOT;
}
if (time >= currEltEndTime) { // at end of current dash
lastElt = DASH; // a delay will follow the dash
currElt = DELAY;
currEltEndTime = time+dotLength;
}
digitalWrite(KEYOUT,HIGH); // close the keyer output while the dash is being sent
tone(4,800);
break;
case DOT:
if ((dashVal == LOW) && (nextElt = IDLE)) { // going from dot to iambic mode
nextElt = DASH;
}
if (time >= currEltEndTime) { // at end of current dot
lastElt = DOT; // a delay will follow the dot
currElt = DELAY;
currEltEndTime = time+dotLength;
}
digitalWrite(KEYOUT,HIGH); // close the keyer outout while the dot is being sent
tone(4,800);
break;
case IDLE: // not sending, nor finishing the delay after a dot or dash
if ((dotVal == LOW) && (dashVal == HIGH)) { // only dot paddle pressed, go to DOT mode
lastElt = IDLE;
currElt = DOT;
currEltEndTime = time + dotLength;
} else if ((dotVal == HIGH) && (dashVal == LOW)) { // only dash paddle pressed, go to DASH mode
lastElt = IDLE;
currElt = DASH;
currEltEndTime = time + 3*dotLength;
} else if ((dotVal == LOW) && (dashVal == LOW) && (nextElt == IDLE)) {
// if both paddles hit at same time (rare, but happens)
lastElt = IDLE;
currElt = DOT;
nextElt = DASH;
currEltEndTime = time + 3*dotLength; // it is an iambic keyer, not a trochaic keyer
}
digitalWrite(KEYOUT,LOW); // keyer output is open in IDLE mode
noTone(4);
break;
case DELAY: // waiting for a dot-length delay after sending a dot or dash
if (time >= currEltEndTime) { // check to see if there is a next element to play
currElt = nextElt;
if (currElt == DOT) {
currEltEndTime = time+dotLength;
} else if ( currElt == DASH) {
currEltEndTime = time+3*dotLength;
}
lastElt = DELAY;
nextElt = IDLE;
}
// during the delay, if either paddle is pressed, save it to play after the delay
if ((lastElt == DOT) && (dashVal == LOW) && (nextElt == NULL)) {
nextElt = DASH;
} else if ((lastElt == DASH) && (dotVal == LOW) &&(nextElt == NULL)) {
nextElt = DOT;
}
// key output is open during the delay
digitalWrite(KEYOUT,LOW);
noTone(4);
break;
default:
break;
}
}
void loadWPM (int wpm)
{
dotLength = 1200/wpm;
}
void Msg2() {
//pinMode(tonePin,OUTPUT); // AUDIO OUTPUT pin
//pinMode(13,OUTPUT); // PTT OUTPUT pin
int element = 0; // letter of message
char temp;
int LSB =0;
int dit = dotLength ; // use pot to reset WPM of messgae
int dah = 3*dit;
//digitalWrite(PTT, HIGH); // turn on PTT
delay(500); //
for (element =0; element < msglength2 ; element ++) // read cw message
{
temp = message2[element];
for(int x = 0; temp > 1 ; x++) // read cw message and check for EOM = 0xff// while(temp !=1) // End of Character = 1
{
LSB = bitRead(temp, 0); //LSB of temp, each loop shifts right one
delay(dit);//delay(dah * 1.3); //add element space
if(LSB == 1)
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dah); //send dah, tone(pin, frequency, duration)
delay(dah); //delay(dah); //add element space
noTone(tonePin);
}
else
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dit); //send dit, tone(pin, frequency, duration)
delay(dit); //add element space
noTone(tonePin);
}
//}
temp = temp >> 1; // shift right one, when temp = 1 quit loop
digitalWrite(KEYOUT, LOW); // turn off PTT
}
delay(dah); //add dah space
}
delay(500); // wait
}
void Msg3() {
//pinMode(tonePin,OUTPUT); // AUDIO OUTPUT pin
//pinMode(13,OUTPUT); // PTT OUTPUT pin
int element = 0; // letter of message
char temp;
int LSB =0;
int dit = dotLength ; // use pot to reset WPM of messgae
int dah = 3*dit;
//digitalWrite(PTT, HIGH); // turn on PTT
delay(500); //
for (element =0; element < msglength3 ; element ++) // read cw message
{
temp = message3[element];
for(int x = 0; temp > 1 ; x++) // read cw message and check for EOM = 0xff// while(temp !=1) // End of Character = 1
{
LSB = bitRead(temp, 0); //LSB of temp, each loop shifts right one
delay(dit);//delay(dah * 1.3); //add element space
if(LSB == 1)
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dah); //send dah, tone(pin, frequency, duration)
delay(dah); //delay(dah); //add element space
noTone(tonePin);
}
else
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dit); //send dit, tone(pin, frequency, duration)
delay(dit); //add element space
noTone(tonePin);
}
//}
temp = temp >> 1; // shift right one, when temp = 1 quit loop
digitalWrite(KEYOUT, LOW); // turn off PTT
}
delay(dah); //add dah space
}
delay(500); // wait
}
void Msg5() {
//pinMode(tonePin,OUTPUT); // AUDIO OUTPUT pin
//pinMode(13,OUTPUT); // PTT OUTPUT pin
int element = 0; // letter of message
char temp;
int LSB =0;
int dit = dotLength ; // use pot to reset WPM of messgae
int dah = 3*dit;
//digitalWrite(PTT, HIGH); // turn on PTT
delay(500); //
for (element =0; element < msglength5 ; element ++) // read cw message
{
temp = message5[element];
for(int x = 0; temp > 1 ; x++) // read cw message and check for EOM = 0xff// while(temp !=1) // End of Character = 1
{
LSB = bitRead(temp, 0); //LSB of temp, each loop shifts right one
delay(dit);//delay(dah * 1.3); //add element space
if(LSB == 1)
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dah); //send dah, tone(pin, frequency, duration)
delay(dah); //delay(dah); //add element space
noTone(tonePin);
}
else
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dit); //send dit, tone(pin, frequency, duration)
delay(dit); //add element space
noTone(tonePin);
}
//}
temp = temp >> 1; // shift right one, when temp = 1 quit loop
digitalWrite(KEYOUT, LOW); // turn off PTT
}
delay(dah); //add dah space
}
delay(500); // wait
}
void Msg6() {
//pinMode(tonePin,OUTPUT); // AUDIO OUTPUT pin
//pinMode(13,OUTPUT); // PTT OUTPUT pin
int element = 0; // letter of message
char temp;
int LSB =0;
int dit = dotLength ; // use pot to reset WPM of messgae
int dah = 3*dit;
//digitalWrite(PTT, HIGH); // turn on PTT
delay(500); //
for (element =0; element < msglength6 ; element ++) // read cw message
{
temp = message6[element];
for(int x = 0; temp > 1 ; x++) // read cw message and check for EOM = 0xff// while(temp !=1) // End of Character = 1
{
LSB = bitRead(temp, 0); //LSB of temp, each loop shifts right one
delay(dit);//delay(dah * 1.3); //add element space
if(LSB == 1)
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dah); //send dah, tone(pin, frequency, duration)
delay(dah); //delay(dah); //add element space
noTone(tonePin);
}
else
{
digitalWrite(KEYOUT, HIGH); // turn on PTT
tone(tonePin,800);//tone(A5,800,dit); //send dit, tone(pin, frequency, duration)
delay(dit); //add element space
noTone(tonePin);
}
//}
temp = temp >> 1; // shift right one, when temp = 1 quit loop
digitalWrite(KEYOUT, LOW); // turn off PTT
}
delay(dah); //add dah space
}
delay(500); // wait
}