first attempt to send messages

src/keyer.cpp

@@ -47,13 +47,147 @@ void Keyer::setSpeed(uint8_t wpm)
     m_elementDuration = calcElementDurationUs(wpm);
 }
 
+void Keyer::sendMessage(const std::string &msg)
+{
+    for (auto c : msg) {
+        m_messageQueue.push(c);
+    }
+}
+
 void Keyer::run()
 {
     auto timestamp = get_absolute_time();
 
     // If there is something to send …
-    if (!m_messageQueue.empty()) {
+    if (!m_messageQueue.empty() || m_messageKeyingState != MessageState::Wait) {
-        // TODO
+        // Stop all paddle keying, if necessary
+        if (m_PaddleKeyingState != State::Wait) {
+            gpio_put(LED_PIN, 0);
+            gpio_put(CW_OUT_PIN, 0);
+            m_buzzer.off();
+            m_keyNextIambicB = false;
+            m_currentlyPausing = false;
+            m_currentlyKeying = false;
+            m_previousState = State::Abort;
+            m_PaddleKeyingState = State::Wait;
+        }
+
+        switch (m_messageKeyingState) {
+        case MessageState::Wait:
+            m_messageChar = m_messageQueue.front();
+
+            switch (m_messageChar) {
+            case '.':
+                m_messageKeyingState = MessageState::Dit;
+                break;
+            case '-':
+                m_messageKeyingState = MessageState::Dit;
+                break;
+            case 'i':
+                m_messageKeyingState = MessageState::IntraCharSpace;
+                break;
+            case 'c':
+                m_messageKeyingState = MessageState::InterCharSpace;
+                break;
+            case 'w':
+                m_messageKeyingState = MessageState::InterWordSpace;
+                break;
+            }
+
+            break;
+        case MessageState::Dit:
+            if (!m_currentlyKeying) {
+                m_currentlyKeying = true;
+                m_keying_until = make_timeout_time_us(m_elementDuration);
+                gpio_put(LED_PIN, 1);
+                gpio_put(CW_OUT_PIN, 1);
+                m_buzzer.on(SIDETONE_FREQ);
+            }
+            if (left_paddle_pressed() || right_paddle_pressed()) {
+                m_messageKeyingState = MessageState::Abort;
+            }
+            if (absolute_time_diff_us(timestamp, m_keying_until) <= 0) {
+                m_currentlyKeying = false;
+                gpio_put(LED_PIN, 0);
+                gpio_put(CW_OUT_PIN, 0);
+                m_buzzer.off();
+                m_messageKeyingState = MessageState::Wait;
+            }
+            break;
+        case MessageState::Dah:
+            if (!m_currentlyKeying) {
+                m_currentlyKeying = true;
+                m_keying_until = make_timeout_time_us(m_elementDuration * 3);
+                gpio_put(LED_PIN, 1);
+                gpio_put(CW_OUT_PIN, 1);
+                m_buzzer.on(SIDETONE_FREQ);
+            }
+            if (left_paddle_pressed() || right_paddle_pressed()) {
+                m_messageKeyingState = MessageState::Abort;
+            }
+            if (absolute_time_diff_us(timestamp, m_keying_until) <= 0) {
+                m_currentlyKeying = false;
+                gpio_put(LED_PIN, 0);
+                gpio_put(CW_OUT_PIN, 0);
+                m_buzzer.off();
+                m_messageKeyingState = MessageState::Wait;
+            }
+            break;
+        case MessageState::IntraCharSpace:
+            if (!m_currentlyPausing) {
+                m_pausing_until = make_timeout_time_us(m_elementDuration);
+                m_currentlyPausing = true;
+            }
+            if (left_paddle_pressed() || right_paddle_pressed()) {
+                m_messageKeyingState = MessageState::Abort;
+            }
+            if (absolute_time_diff_us(timestamp, m_pausing_until) <= 0) {
+                m_currentlyPausing = false;
+                m_messageKeyingState = MessageState::Wait;
+            }
+            break;
+        case MessageState::InterCharSpace:
+            if (!m_currentlyPausing) {
+                m_pausing_until = make_timeout_time_us(m_elementDuration * 3);
+                m_currentlyPausing = true;
+            }
+            if (left_paddle_pressed() || right_paddle_pressed()) {
+                m_messageKeyingState = MessageState::Abort;
+            }
+            if (absolute_time_diff_us(timestamp, m_pausing_until) <= 0) {
+                m_currentlyPausing = false;
+                m_messageKeyingState = MessageState::Wait;
+            }
+            break;
+        case MessageState::InterWordSpace:
+            if (!m_currentlyPausing) {
+                m_pausing_until = make_timeout_time_us(m_elementDuration * 7);
+                m_currentlyPausing = true;
+            }
+            if (left_paddle_pressed() || right_paddle_pressed()) {
+                m_messageKeyingState = MessageState::Abort;
+            }
+            if (absolute_time_diff_us(timestamp, m_pausing_until) <= 0) {
+                m_currentlyPausing = false;
+                m_messageKeyingState = MessageState::Wait;
+            }
+            break;
+        case MessageState::Abort:
+        {
+            gpio_put(LED_PIN, 0);
+            gpio_put(CW_OUT_PIN, 0);
+            m_buzzer.off();
+            m_currentlyPausing = false;
+            m_currentlyKeying = false;
+            std::queue<char> emptyQueue;
+            std::swap(m_messageQueue, emptyQueue);
+            break;
+        }
+        default:
+            break;
+        }
+
+        return;
     }
 
     // If we are in Straight key mode …
@@ -72,20 +206,20 @@ void Keyer::run()
     }
 
     // If we are in IambicA or IambicB-Mode …
-    switch (m_state) {
+    switch (m_PaddleKeyingState) {
     case State::Wait:
         if (left_paddle_pressed()) {
             m_keyNextIambicB = false;
-            m_state = State::Dit;
+            m_PaddleKeyingState = State::Dit;
         } else if (right_paddle_pressed()) {
             m_keyNextIambicB = false;
-            m_state = State::Dah;
+            m_PaddleKeyingState = State::Dah;
         } else {
             if (m_mode == Mode::IambicB && m_keyNextIambicB) {
                 if (m_previousState == State::Dit)
-                    m_state = State::Dah;
+                    m_PaddleKeyingState = State::Dah;
                 else
-                    m_state = State::Dit;
+                    m_PaddleKeyingState = State::Dit;
 
                 m_keyNextIambicB = false;
             }
@@ -112,7 +246,7 @@ void Keyer::run()
                 m_buzzer.off();
                 // m_audioOut.off();
                 m_previousState = State::Dit;
-                m_state = State::DitPause;
+                m_PaddleKeyingState = State::DitPause;
             }
         }
         break;
@@ -137,7 +271,7 @@ void Keyer::run()
                 m_buzzer.off();
                 // m_audioOut.off();
                 m_previousState = State::Dah;
-                m_state = State::DahPause;
+                m_PaddleKeyingState = State::DahPause;
             }
         }
         break;
@@ -150,13 +284,13 @@ void Keyer::run()
                 m_currentlyPausing = false;
 
                 if (right_paddle_pressed()) {
-                    m_state = State::Dah;
+                    m_PaddleKeyingState = State::Dah;
                     m_keyNextIambicB = false;
                 } else if (left_paddle_pressed()) {
-                    m_state = State::Dit;
+                    m_PaddleKeyingState = State::Dit;
                     m_keyNextIambicB = false;
                 } else {
-                    m_state = State::Wait;
+                    m_PaddleKeyingState = State::Wait;
                 }
             }
         }
@@ -170,13 +304,13 @@ void Keyer::run()
                 m_currentlyPausing = false;
 
                 if (left_paddle_pressed()) {
-                    m_state = State::Dit;
+                    m_PaddleKeyingState = State::Dit;
                     m_keyNextIambicB = false;
                 } else if (right_paddle_pressed()) {
-                    m_state = State::Dah;
+                    m_PaddleKeyingState = State::Dah;
                     m_keyNextIambicB = false;
                 } else {
-                    m_state = State::Wait;
+                    m_PaddleKeyingState = State::Wait;
                 }
             }
         }
@@ -190,11 +324,11 @@ void Keyer::run()
         m_currentlyPausing = false;
         m_currentlyKeying = false;
         m_previousState = State::Abort;
-        m_state = State::Wait;
+        m_PaddleKeyingState = State::Wait;
         break;
     default:
         break;
     }
 }
 
-void Keyer::stop() { m_state = State::Abort; }
+void Keyer::stop() { m_PaddleKeyingState = State::Abort; }

src/keyer.h

@@ -14,6 +14,7 @@ class Keyer final
 
     void setMode(Mode mode) { m_mode = mode; }
     void setSpeed(uint8_t wpm);
+    void sendMessage(const std::string &msg);
 
     void run();
     void stop();
@@ -28,6 +29,16 @@ class Keyer final
         Abort,
     };
 
+    enum class MessageState {
+      Wait,
+      Dit,
+      Dah,
+      IntraCharSpace,
+      InterCharSpace,
+      InterWordSpace,
+      Abort,
+    };
+
     uint8_t m_wpm {18};
     Mode m_mode {Mode::IambicB};
 
@@ -37,12 +48,15 @@ class Keyer final
     Sidetone m_buzzer;
     // Sidetone m_audioOut;
 
-    State m_state {State::Wait};
+    State m_PaddleKeyingState {State::Wait};
     State m_previousState {State::Wait};
+
+    std::queue<char> m_messageQueue;
+    MessageState m_messageKeyingState {MessageState::Wait};
+    char m_messageChar;
+
     uint64_t m_elementDuration {0};
     bool m_currentlyKeying {false};
     bool m_currentlyPausing {false};
     bool m_keyNextIambicB {false};
-
-    std::queue<std::string> m_messageQueue;
 };

src/morse.cpp

@@ -37,11 +37,55 @@ std::string refurbishMessage(const std::string &msg)
 
     // Remove all other unknown characters
     msgRefurb.erase(remove_if(msgRefurb.begin(), msgRefurb.end(),
-                             [](const char &c) { return c != ' ' && morseCode.find(c) == morseCode.end(); }),
+                              [](const char &c) { return c != ' ' && morseCode.find(c) == morseCode.end(); }),
-                   msgRefurb.end());
+                    msgRefurb.end());
 
     // Remove spaces, if there are too many of them
     msgRefurb = std::regex_replace(msgRefurb, std::regex("(\\s+)"), " ");
 
     return msgRefurb;
 }
+
+std::string messageToMorse(const std::string &msg)
+{
+    std::string refMsg = refurbishMessage(msg);
+    std::string morseString;
+
+    for (unsigned int i = 0; i < refMsg.length(); i++) {
+        auto c = refMsg[i];
+        if (c == ' ') {
+            // morseString.append("       ");
+            morseString += 'w';
+            continue;
+        }
+
+        // Ignore and continue with next char, if not found
+        auto search = morseCode.find(c);
+        if (search == morseCode.end()) {
+            continue;
+        }
+
+        for (unsigned int j = 0; j < morseCode[c].length(); j++) {
+            auto m = morseCode[c][j];
+            if (j == 0 && i > 0 && refMsg[i - 1] != ' ') {
+                // morseString.append("   ");
+                morseString += 'c';
+            }
+
+            morseString += m;
+
+            if (j < morseCode[c].length() - 1) {
+                // morseString.append(" ");
+                morseString += 'i';
+            }
+        }
+    }
+
+    // Append word space if last char was not a blank
+    if (refMsg.back() != ' ') {
+        // morseString.append("       ");
+        morseString += 'w';
+    }
+
+    return morseString;
+}

src/morse.h

@@ -2,4 +2,4 @@
 
 #include <string>
 
-std::string refurbishMessage(const std::string msg);
+std::string messageToMorse(const std::string &msg);

src/raspi_keyer.cpp

@@ -31,11 +31,13 @@ enum class KeyerQueueCommand {
     Stop,
     Config,
     Wait,
+    SendMessage,
 };
 struct KeyerQueueData {
     KeyerQueueCommand cmd;
     uint8_t wpm;
     Mode mode;
+    std::string message;
 };
 
 queue_t keyerQueue;
@@ -90,6 +92,9 @@ void core1_main()
             keyer.setMode(data.mode);
             data.cmd = KeyerQueueCommand::Run;
             break;
+        case KeyerQueueCommand::SendMessage:
+            keyer.sendMessage(data.message);
+            break;
         case KeyerQueueCommand::Wait:
             break;
         default:
@@ -179,9 +184,11 @@ int main()
     }
     lastWpm = currentWpm;
 
-    KeyerQueueData keyerQueueData {KeyerQueueCommand::Run, currentWpm, settings.mode};
+    KeyerQueueData keyerQueueData {KeyerQueueCommand::Run, currentWpm, settings.mode, ""};
     queue_add_blocking(&keyerQueue, &keyerQueueData);
 
+    static bool used = false;
+
     while (true) {
         tud_task();
         cdc_task();
@@ -190,13 +197,18 @@ int main()
 
         // If WPM in settings is set to 0 -> take speed from poti
         if (settings.wpm == 0 && (currentWpm != lastWpm)) {
-            KeyerQueueData keyerQueueData {KeyerQueueCommand::Config, currentWpm, settings.mode};
+            KeyerQueueData keyerQueueData {KeyerQueueCommand::Config, currentWpm, settings.mode, ""};
             queue_add_blocking(&keyerQueue, &keyerQueueData);
             printf("WPM has changed to: %d\n", currentWpm);
             lastWpm = currentWpm;
         }
 
-        //busy_wait_ms(1000);
+        busy_wait_ms(10000);
+        if (!used) {
+            KeyerQueueData keyerQueueData {KeyerQueueCommand::SendMessage, 0, settings.mode, "cq cq de dg2smb dg2smb pse k"};
+            queue_add_blocking(&keyerQueue, &keyerQueueData);
+        }
+
     }
 
     return 0;