display initialization

Template Project/lib/ESPMegaPRO/ESPMegaDisplay.cpp

@@ -1,5 +1,10 @@
 #include <ESPMegaDisplay.hpp>
 
+/**
+ * @brief Receives and processes serial commands from the display adapter.
+ * @param process Flag indicating whether to process the received commands.
+ * @return True if data is received, false otherwise.
+ */
 bool ESPMegaDisplay::recieveSerialCommand(bool process){
     bool dataRecieved = false;
     // Read the serial buffer if available
@@ -16,10 +21,17 @@ bool ESPMegaDisplay::recieveSerialCommand(bool process){
     return dataRecieved;
 }
 
+/**
+ * @brief Receives and processes serial commands from the display adapter.
+ * @return True if data is received, false otherwise.
+ */
 bool ESPMegaDisplay::recieveSerialCommand(){
     return recieveSerialCommand(true);
 }
 
+/**
+ * @brief Processes the received serial command.
+ */
 void ESPMegaDisplay::processSerialCommand(){
     // Check if the rx buffer ended with stop bytes (0xFF 0xFF 0xFF)
     if(!payloadIsValid()) return;
@@ -38,6 +50,9 @@ void ESPMegaDisplay::processSerialCommand(){
     }
 }
 
+/**
+ * @brief Processes the touch event payload.
+ */
 void ESPMegaDisplay::processTouchPayload() {
     if (rx_buffer_index != 4) return;
     // The second byte of the payload is the page number
@@ -49,6 +64,9 @@ void ESPMegaDisplay::processTouchPayload() {
     // 0x01 is press, 0x00 is release
 }
 
+/**
+ * @brief Processes the page report event payload.
+ */
 void ESPMegaDisplay::processPageReportPayload() {
     // The second byte of the payload is the page number
     this->currentPage = rx_buffer[1];
@@ -58,32 +76,39 @@ void ESPMegaDisplay::processPageReportPayload() {
     rx_buffer_index = 0;
 }
 
+/**
+ * @brief Sends stop bytes to the display adapter.
+ */
 void ESPMegaDisplay::sendStopBytes() {
     displayAdapter->write(0xFF);
     displayAdapter->write(0xFF);
     displayAdapter->write(0xFF);
 }
 
+/**
+ * @brief Sends a command to the display adapter.
+ * @param command The command to send.
+ */
 void ESPMegaDisplay::sendCommand(char* command) {
     displayAdapter->print(command);
     sendStopBytes();
 }
 
-void ESPMegaDisplay::refreshPage() {
-    if(this->currentPage==0){
-        refreshInputPage();
-    }
-    else if(this->currentPage==1){
-        refreshOutputPage();
-    }
-}
-
+/**
+ * @brief Jumps to the specified page on the display.
+ * @param page The page number to jump to.
+ */
 void ESPMegaDisplay::jumpToPage(int page) {
     this->displayAdapter->print("page ");
     this->displayAdapter->print(page);
     sendStopBytes();
 }
 
+/**
+ * @brief Sets the value of a number component on the display.
+ * @param component The component name.
+ * @param value The value to set.
+ */
 void ESPMegaDisplay::setNumber(char* component, int value) {
     this->displayAdapter->print(component);
     this->displayAdapter->print("=");
@@ -91,6 +116,11 @@ void ESPMegaDisplay::setNumber(char* component, int value) {
     sendStopBytes();
 }
 
+/**
+ * @brief Sets the value of a string component on the display.
+ * @param component The component name.
+ * @param value The value to set.
+ */
 void ESPMegaDisplay::setString(char* component, char* value) {
     this->displayAdapter->print(component);
     this->displayAdapter->print("=\"");
@@ -99,18 +129,91 @@ void ESPMegaDisplay::setString(char* component, char* value) {
     sendStopBytes();
 }
 
-int ESPMegaDisplay::getNumber(char* component) {
+/**
+ * @brief Gets the value of a number component from the display.
+ * @param component The component name.
+ * @return The value of the number component.
+ */
+uint32_t ESPMegaDisplay::getNumber(char* component) {
     uint32_t start = millis();
     // Send the get command
     this->displayAdapter->print("get ");
     this->displayAdapter->print(component);
     sendStopBytes();
     // Wait for the response
-    if(!waitForValidPayload(FETCH_TIMEOUT)) return 0;
+    if(!waitForValidPayload(DISPLAY_FETCH_TIMEOUT)) return 0;
     // The rx buffer is valid
-    
+    // The expected payload is type 0x71
+    if(rx_buffer[0]!=0x71) return 0;
+    // The 2nd to 5th byte of the payload is the value
+    // It's a 4 byte 32-bit value in little endian order.
+    // Convert the 4 bytes to a 32-bit value
+    uint32_t value = 0;
+    value |= rx_buffer[1];
+    value |= rx_buffer[2]<<8;
+    value |= rx_buffer[3]<<16;
+    value |= rx_buffer[4]<<24;
+    return value;
 }
 
+/**
+ * @brief Gets the value of a string component from the display.
+ * @param component The component name.
+ * @return The value of the string component.
+ * @note The returned char array must be freed after use.
+ */
+char* ESPMegaDisplay::getString(char* component) {
+    uint32_t start = millis();
+    // Send the get command
+    this->displayAdapter->print("get ");
+    this->displayAdapter->print(component);
+    sendStopBytes();
+    // Wait for the response
+    if(!waitForValidPayload(DISPLAY_FETCH_TIMEOUT)) return "";
+    // The rx buffer is valid
+    // The expected payload is type 0x70
+    if(rx_buffer[0]!=0x70) return "";
+    // The 2nd bytes onwards before the stop bytes is the string
+    // The length of the string is the length of the payload minus 4
+    uint8_t length = rx_buffer_index-4;
+    // First we malloc a char array with the length of the string
+    char* value = (char*)malloc(length+1);
+    // Copy the string from the rx buffer to the char array
+    memcpy(value, rx_buffer+1, length);
+    // Add the null terminator
+    value[length] = '\0';
+    // Return the char array
+    return value;
+}
+
+bool ESPMegaDisplay::getStringToBuffer(char* component, char* buffer, uint8_t buffer_size) {
+    uint32_t start = millis();
+    // Send the get command
+    this->displayAdapter->print("get ");
+    this->displayAdapter->print(component);
+    sendStopBytes();
+    // Wait for the response
+    if(!waitForValidPayload(DISPLAY_FETCH_TIMEOUT)) return false;
+    // The rx buffer is valid
+    // The expected payload is type 0x70
+    if(rx_buffer[0]!=0x70) return false;
+    // The 2nd bytes onwards before the stop bytes is the string
+    // The length of the string is the length of the payload minus 4
+    uint8_t length = rx_buffer_index-4;
+    // Check if the buffer is large enough to hold the string
+    if(length>buffer_size) return false;
+    // Copy the string from the rx buffer to the char array
+    memcpy(buffer, rx_buffer+1, length);
+    // Add the null terminator
+    buffer[length] = '\0';
+    return true;
+}
+
+/**
+ * @brief Waits for a valid payload from the display adapter.
+ * @param timeout The timeout value in milliseconds.
+ * @return True if a valid payload is received, false otherwise.
+ */
 bool ESPMegaDisplay::waitForValidPayload(uint32_t timeout) {
     uint32_t start = millis();
     // If the payload is not valid, keep reading the serial buffer until timeout
@@ -123,6 +226,10 @@ bool ESPMegaDisplay::waitForValidPayload(uint32_t timeout) {
     return true;
 }
 
+/**
+ * @brief Checks if the received payload is valid.
+ * @return True if the payload is valid, false otherwise.
+ */
 bool ESPMegaDisplay::payloadIsValid() {
     // Check if the rx buffer ended with stop bytes (0xFF 0xFF 0xFF)
     if(rx_buffer_index<3) return false;
@@ -131,3 +238,111 @@ bool ESPMegaDisplay::payloadIsValid() {
     if(rx_buffer[rx_buffer_index-3]!=0xFF) return false;
     return true;
 }
+
+/**
+ * @brief Sets the brightness of the display.
+ * @param value The brightness value.
+ */
+void ESPMegaDisplay::setBrightness(int value) {
+    this->displayAdapter->print("dim=");
+    this->displayAdapter->print(value);
+    sendStopBytes();
+}
+
+/**
+ * @brief Sets the volume of the display.
+ * @param value The volume value.
+ */
+void ESPMegaDisplay::setVolume(int value) {
+    this->displayAdapter->print("vol=");
+    this->displayAdapter->print(value);
+    sendStopBytes();
+}
+
+/**
+ * @brief Restarts the display.
+ */
+void ESPMegaDisplay::reset() {
+    // First we send a stop bytes to clear the serial buffer
+    // This ensures that the display is ready to receive the reset command
+    sendStopBytes();
+    this->displayAdapter->print("rest");
+    sendStopBytes();
+}
+
+/**
+ * @brief Registers a callback function that will be called when a push event is received.
+ * @param callback The callback function.
+ */
+void ESPMegaDisplay::registerPushCallback(std::function<void(uint8_t, uint8_t)> callback) {
+    this->pushCallback = callback;
+}
+
+/**
+ * @brief Registers a callback function that will be called when a pop event is received.
+ * @param callback The callback function.
+ */
+void ESPMegaDisplay::registerPopCallback(std::function<void(uint8_t, uint8_t)> callback) {
+    this->popCallback = callback;
+}
+
+/**
+ * @brief Registers a callback function that will be called when a page change event is received.
+ * @param callback The callback function.
+ */
+void ESPMegaDisplay::registerPageChangeCallback(std::function<void(uint8_t)> callback) {
+    this->pageChangeCallback = callback;
+}
+
+/**
+ * @brief Unregisters the push callback function.
+ */
+void ESPMegaDisplay::unregisterPushCallback() {
+    this->pushCallback = NULL;
+}
+
+/**
+ * @brief Unregisters the pop callback function.
+ */
+void ESPMegaDisplay::unregisterPopCallback() {
+    this->popCallback = NULL;
+}
+
+/**
+ * @brief Unregisters the page change callback function.
+ */
+void ESPMegaDisplay::unregisterPageChangeCallback() {
+    this->pageChangeCallback = NULL;
+}
+
+/**
+ * @brief Constructor for the ESPMegaDisplay class.
+ * @param displayAdapter The serial adapter connected to the display.
+ */
+ESPMegaDisplay::ESPMegaDisplay(HardwareSerial *displayAdapter) {
+    this->displayAdapter = displayAdapter;
+    this->currentPage = 0;
+    this->rx_buffer_index = 0;
+    this->pushCallback = NULL;
+    this->popCallback = NULL;
+    this->pageChangeCallback = NULL;
+}
+
+/**
+ * @brief Initializes the display.
+ */
+void ESPMegaDisplay::begin() {
+    this->displayAdapter->begin(115200);
+    this->displayAdapter->setTimeout(100);
+    this->displayAdapter->flush();
+    this->reset();
+}
+
+/**
+ * @brief The main loop function of the display.
+ */
+void ESPMegaDisplay::loop() {
+    // Check if there is data in the serial buffer
+    // If there is data, process the data
+    recieveSerialCommand();
+}

Template Project/lib/ESPMegaPRO/ESPMegaDisplay.hpp

@@ -1,23 +1,23 @@
 #include <Arduino.h>
 #include <ESPMegaPRO_OOP.hpp>
 
-#define FETCH_TIMEOUT 100
+#define DISPLAY_FETCH_TIMEOUT 100 // ms
 
 class ESPMegaDisplay
 {
     public:
-        ESPMegaDisplay(HardwareSerial *displayAdapter, ESPMegaPRO *espmega);
+        ESPMegaDisplay(HardwareSerial *displayAdapter);
         void begin();
         void loop();
         void reset();
         void setBrightness(int value);
+        void setVolume(int value);
         void jumpToPage(int page);
         void setString(char* component, char* value);
         void setNumber(char* component, int value);
         char* getString(char* component);
-        int getNumber(char* component);
-        void bindInputPage(uint8_t card_id);
-        void bindOutputPage(uint8_t card_id);
+        bool getStringToBuffer(char* component, char* buffer, uint8_t buffer_size);
+        uint32_t getNumber(char* component);
         void handlePwmStateChange(uint8_t pin, uint16_t value);
         void handleInputStateChange(uint8_t pin, bool state);
         void registerPushCallback(std::function<void(uint8_t, uint8_t)> callback);
@@ -26,9 +26,7 @@ class ESPMegaDisplay
         void unregisterPushCallback();
         void unregisterPopCallback();
         void unregisterPageChangeCallback();
-    private:
-        uint8_t inputCardId;
-        uint8_t outputCardId;
+    protected:
         uint8_t currentPage;
         uint8_t rx_buffer_index;
         char rx_buffer[256];
@@ -40,13 +38,9 @@ class ESPMegaDisplay
         void processPageReportPayload();
         void sendStopBytes();
         void sendCommand(char* command);
-        void refreshPage();
-        void refreshInputPage();
-        void refreshOutputPage();
         bool payloadIsValid();
         bool waitForValidPayload(uint32_t timeout);
         HardwareSerial *displayAdapter;
-        ESPMegaPRO *espmega;
         std::function<void(uint8_t, uint8_t)> pushCallback;
         std::function<void(uint8_t, uint8_t)> popCallback;
         std::function<void(uint8_t)> pageChangeCallback;

Template Project/lib/ESPMegaPRO/ESPMegaIoT.cpp

@@ -19,6 +19,8 @@ ESPMegaIoT::~ESPMegaIoT()
 {
     // Delete the mqtt server
     delete[] mqtt_server;
+    delete[] mqtt_user;
+    delete[] mqtt_password;
 }
 
 void ESPMegaIoT::mqttCallback(char *topic, byte *payload, unsigned int length)

Template Project/lib/ESPMegaPRO/ESPMegaPRO_OOP.hpp

@@ -10,6 +10,7 @@
 #include <DS1307RTC.h>
 #include <time.h>
 
+
 struct rtctime_t {
     uint8_t hours;
     uint8_t minutes;

Template Project/lib/ESPMegaPRO/InternalDisplay.cpp

@@ -0,0 +1,101 @@
+#include <InternalDisplay.hpp>
+
+
+void InternalDisplay::begin(ESPMegaPRO *espmega) {
+    this->espmega = espmega;
+}
+
+void InternalDisplay::loop() {
+    // TODO: implementation
+}
+
+void InternalDisplay::bindInputCard(uint8_t card_id) {
+    this->bindedInputCard = card_id;
+    if(currentPage == INTERNAL_DISPLAY_INPUT_PAGE) {
+        refreshInput();
+    }
+}
+
+void InternalDisplay::bindOutputCard(uint8_t card_id) {
+    this->bindedOutputCard = card_id;
+    if(currentPage == INTERNAL_DISPLAY_OUTPUT_PAGE) {
+        refreshOutput();
+    }
+}
+
+void InternalDisplay::handleInputStateChange(uint8_t pin, bool state) {
+    // If the input card is binded to the display and the current page is the input page
+    // then update the respective input component
+    // TODO: implementation
+}
+
+void InternalDisplay::handlePwmStateChange(uint8_t pin, uint16_t value) {
+    // If the output card is binded to the display and the current page is the output page
+    // then update the respective output component
+    // TODO: implementation
+}
+
+void InternalDisplay::handlePageChange(uint8_t page) {
+    // TODO: implementation
+}
+
+void InternalDisplay::saveNetworkConfig() {
+    // TODO: implementation
+}
+
+void InternalDisplay::saveMQTTConfig() {
+    // TODO: implementation
+}
+
+void InternalDisplay::updateStatusIcons() {
+    // TODO: implementation
+}
+
+void InternalDisplay::updateClock() {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshPage() {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshPage(uint8_t page) {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshDashboard() {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshInput() {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshOutput() {
+    // TODO: implementation
+}
+
+void InternalDisplay::refreshAC() {
+    // TODO: implementation
+}
+
+void InternalDisplay::setOutputBar(uint8_t pin, uint16_t value) {
+    // Write the value to the output bar
+    this->displayAdapter->print("j");
+    this->displayAdapter->print(pin);
+    this->displayAdapter->print(".val=");
+    this->displayAdapter->print(value);
+    this->sendStopBytes();
+}
+
+void InternalDisplay::setPWMAdjustmentSlider(uint16_t value) {
+    // TODO: implementation
+}
+
+void InternalDisplay::setPWMAdjustmentPin(uint8_t pin) {
+    // TODO: implementation
+}
+
+void InternalDisplay::setPWMAdjustmentButton(bool state) {
+    // TODO: implementation
+}

Template Project/lib/ESPMegaPRO/InternalDisplay.hpp

@@ -0,0 +1,38 @@
+#include <ESPMegaPRO_OOP.hpp>
+#include <ESPMegaDisplay.hpp>
+
+#define INTERNAL_DISPLAY_DASHBOARD_PAGE 0
+#define INTERNAL_DISPLAY_INPUT_PAGE 1
+#define INTERNAL_DISPLAY_OUTPUT_PAGE 2
+#define INTERNAL_DISPLAY_AC_PAGE 3
+
+class InternalDisplay : public ESPMegaDisplay {
+    public:
+        void begin(ESPMegaPRO *espmega);
+        void loop();
+        void bindInputCard(uint8_t card_id);
+        void bindOutputCard(uint8_t card_id);
+    private:
+        uint8_t bindedInputCard;
+        uint8_t bindedOutputCard;
+        ESPMegaPRO *espmega;
+        void handleInputStateChange(uint8_t pin, bool state);
+        void handlePwmStateChange(uint8_t pin, uint16_t value);
+        void handlePageChange(uint8_t page);
+        void setOutputBar(uint8_t pin, uint16_t value);
+        void setOutputStateColor(uint8_t pin, bool state);
+        void setInputMarker(uint8_t pin, bool state);
+        void setPWMAdjustmentSlider(uint16_t value);
+        void setPWMAdjustmentPin(uint8_t pin);
+        void setPWMAdjustmentButton(bool state);
+        void saveNetworkConfig();
+        void saveMQTTConfig();
+        void updateStatusIcons();
+        void updateClock();
+        void refreshPage();
+        void refreshPage(uint8_t page);
+        void refreshDashboard();
+        void refreshInput();
+        void refreshOutput();
+        void refreshAC();
+};