use global mqtt

Reviewed-on: #2

.vscode/settings.json

@@ -0,0 +1,60 @@
+{
+    "files.associations": {
+        "array": "cpp",
+        "atomic": "cpp",
+        "bitset": "cpp",
+        "cctype": "cpp",
+        "chrono": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "condition_variable": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "unordered_map": "cpp",
+        "unordered_set": "cpp",
+        "vector": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "map": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "ratio": "cpp",
+        "regex": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp",
+        "fstream": "cpp",
+        "initializer_list": "cpp",
+        "iomanip": "cpp",
+        "iosfwd": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "mutex": "cpp",
+        "new": "cpp",
+        "ostream": "cpp",
+        "sstream": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "thread": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp"
+    },
+    "idf.portWin": "COM4"
+}

lib/communication/mqtt.cpp

@@ -0,0 +1,91 @@
+#include <PubSubClient.h>
+#include <WiFiClient.h>
+#include "mqtt.h"
+
+constexpr uint16_t BUFFER_SIZE = 2048;
+
+static WiFiClient wifiClient = WiFiClient();
+static PubSubClient mqttClient = PubSubClient(wifiClient);
+std::string Mqtt::brokerIp;
+uint16_t Mqtt::brokerPort;
+std::string Mqtt::clientId;
+std::string Mqtt::username;
+std::string Mqtt::password;
+std::map<std::string, MqttCallback> Mqtt::callbacks;
+bool Mqtt::initialized = false;
+bool Mqtt::isConnected = false;
+
+void Mqtt::mqttCb(char* topic, uint8_t* payload, unsigned int length) {
+    std::string topicStr(topic);
+    if (callbacks.find(topicStr) != callbacks.end()) {
+        callbacks[topicStr](payload, length);
+    }
+}
+
+void Mqtt::subscribe(const std::string& topic, MqttCallback callback) {
+    if (mqttClient.connected()) {
+        if (mqttClient.subscribe(topic.c_str())) {
+            callbacks[topic] = callback;
+            Serial.printf("Subscribed to topic: %s\n", topic.c_str());
+        } else {
+            Serial.printf("Failed to subscribe to topic: %s\n", topic.c_str());
+        }
+    } else {
+        Serial.println("MQTT client is not connected. Cannot subscribe.");
+    }
+}
+
+void Mqtt::publish(const std::string& topic, const std::string& payload, bool retain) {
+    if (mqttClient.connected()) {
+        if (mqttClient.publish(topic.c_str(), payload.c_str(), retain)) {
+        } else {
+            Serial.printf("Failed to publish to topic: %s\n", topic.c_str(), payload.c_str());
+        }
+    } else {
+        Serial.println("MQTT client is not connected. Cannot publish.");
+    }
+}
+
+void Mqtt::poll() {
+    if (mqttClient.connected()) {
+        mqttClient.loop(); // Process incoming messages
+    } else {
+        Serial.println("MQTT client is not connected. Polling skipped.");
+    }
+}
+
+void Mqtt::checkConnection() {
+    if (!mqttClient.connected()) {
+        Serial.println("MQTT client is not connected. Attempting to reconnect...");
+        if (mqttClient.connect(Mqtt::clientId.c_str(), Mqtt::username.c_str(), Mqtt::password.c_str())) {
+            Serial.println("Reconnected to MQTT broker successfully.");
+            for (const auto& callback : Mqtt::callbacks) {
+                mqttClient.subscribe(callback.first.c_str());
+            }
+            Mqtt::isConnected = true;
+        } else {
+            Serial.printf("Failed to reconnect to MQTT broker, rc=%d\n", mqttClient.state());
+            Mqtt::isConnected = false;
+        }
+    }
+}
+
+void Mqtt::connect(std::string brokerIp, uint16_t brokerPort, std::string clientId, std::string username, std::string password) {
+    Mqtt::brokerIp = brokerIp;
+    Mqtt::brokerPort = brokerPort;
+    Mqtt::clientId = clientId;
+    Mqtt::username = username;
+    Mqtt::password = password;
+    mqttClient.setServer(Mqtt::brokerIp.c_str(), Mqtt::brokerPort);
+    mqttClient.setKeepAlive(60);
+    mqttClient.setCallback(mqttCb);
+    mqttClient.setBufferSize(BUFFER_SIZE);
+
+    if (mqttClient.connect(Mqtt::clientId.c_str(), Mqtt::username.c_str(), Mqtt::password.c_str())) {
+        Serial.println("Connected to MQTT broker");
+        Mqtt::initialized = true;
+        Mqtt::isConnected = true;
+    } else {
+        Serial.printf("Failed to connect to MQTT broker, rc=%d\n", mqttClient.state());
+    }
+}

lib/communication/mqtt.h

@@ -0,0 +1,26 @@
+#pragma once
+#include <string>
+#include <functional>
+#include <map>
+
+typedef std::function<void(uint8_t*, int)> MqttCallback;
+
+class Mqtt {
+public:
+    static void connect(std::string brokerIp, uint16_t brokerPort, std::string clientId, std::string username="mqtt", std::string password="mqtt");
+    static void poll();
+    static void checkConnection();
+    static void publish(const std::string& topic, const std::string& payload, bool retain = false);
+    static void subscribe(const std::string& topic, MqttCallback callback);
+    static void mqttCb(char* topic, uint8_t* payload, unsigned int length);
+
+private:
+    static std::string brokerIp;
+    static uint16_t brokerPort;
+    static std::string clientId;
+    static std::string username;
+    static std::string password;
+    static bool initialized;
+    static bool isConnected;
+    static std::map<std::string, MqttCallback> callbacks;
+};

lib/light/light.cpp

@@ -0,0 +1,270 @@
+#include <ArduinoJson.h>
+#include "light.h"
+#include "mqtt.h"
+
+constexpr uint16_t configMsgSize = 1024;
+constexpr uint16_t statusMsgSize = 128;
+constexpr uint8_t minPwmValue = 0;
+constexpr double gammaCorrection = 2.4;
+constexpr uint32_t maxPwmUi = 255;
+
+const struct {
+    String available = "online";
+    String notAvailable = "offline";
+} Availability;
+
+
+Light::Light(Pin* pinR, Pin* pinG, Pin* pinB, std::string uniqueId)
+    : pinR(pinR), pinG(pinG), pinB(pinB), pinCW(nullptr), pinWW(nullptr) {
+    lightInfo.uniqueId = uniqueId;
+    lightType = LightType::rgb;
+    uint8_t bits = pinR->getLedResolutionBits();
+    maxPwm = (bits >= 1 && bits <= 31) ? ((1u << bits) - 1u) : 255u;
+    publishInitialState();
+    subscribeToMqttTopics();
+}
+
+Light::Light(Pin* pinR, Pin* pinG, Pin* pinB, Pin* pinCW, Pin* pinWW, std::string uniqueId)
+    : pinR(pinR), pinG(pinG), pinB(pinB), pinCW(pinCW), pinWW(pinWW) {
+    lightInfo.uniqueId = uniqueId;
+    lightType = LightType::rgbww;
+    uint8_t bits = pinR->getLedResolutionBits();
+    maxPwm = (bits >= 1 && bits <= 31) ? ((1u << bits) - 1u) : 255u;
+    publishInitialState();
+    subscribeToMqttTopics();
+}
+
+void Light::publishInitialState() {
+    // Publish the initial state of the light
+    JsonDocument configInfo;
+    JsonObject deviceInfo = configInfo["device"].to<JsonObject>();
+    deviceInfo["name"] = this->deviceInfo.name;
+    deviceInfo["model"] = this->deviceInfo.model;
+    JsonArray identifiers = deviceInfo["identifiers"].to<JsonArray>();
+    identifiers.add(this->deviceInfo.identifier + this->lightInfo.uniqueId);
+    deviceInfo["sw_version"] = this->deviceInfo.swVersion;
+    deviceInfo["manufacturer"] = this->deviceInfo.manufacturer;
+
+    configInfo["unique_id"] = this->lightInfo.uniqueId;
+    configInfo["name"] = this->lightInfo.name;
+    configInfo["schema"] = "json";
+    configInfo["json_attributes_topic"] = this->lightInfo.jsonAttributesTopic;
+    configInfo["command_topic"] = this->lightInfo.commandTopic;
+    configInfo["color_temp_kelvin"] = true;
+    configInfo["max_kelvin"] = cwTempKelvin;
+    configInfo["min_kelvin"] = wwTempKelvin;
+    JsonArray availabilityInfo = configInfo["availability"].to<JsonArray>();
+    JsonObject availabilityItem = availabilityInfo.add<JsonObject>();
+    availabilityItem["topic"] = this->lightInfo.availabilityTopic;
+    availabilityItem["value_template"] = this->lightInfo.availabilityTemplate;
+    JsonArray supportedColorModes = configInfo["supported_color_modes"].to<JsonArray>();
+    if (lightType == LightType::rgb) {
+        supportedColorModes.add("rgb");
+    } else if (lightType == LightType::rgbw) {
+        supportedColorModes.add("rgbw");
+    } else if (lightType == LightType::rgbww) {
+        supportedColorModes.add("rgb");
+        supportedColorModes.add("color_temp");
+    } else if (lightType == LightType::colorTemperature) {
+        supportedColorModes.add("color_temp");
+    } else if (lightType == LightType::brightness) {
+        supportedColorModes.add("brightness");
+    } else {
+        supportedColorModes.add("onoff");
+    }
+    configInfo["state_topic"] = this->lightInfo.stateTopic;
+
+    std::string configJson;
+    serializeJson(configInfo, configJson);
+    Mqtt::publish(lightInfo.discoveryTopic, configJson);
+
+    std::string stateJson;
+    JsonDocument stateInfo;
+    stateInfo["state"] = "OFF";
+    stateInfo["brightness"] = maxPwmUi;
+    brightness = maxPwmUi;
+    JsonObject color = stateInfo["color"].to<JsonObject>();
+    color["r"] = 0;
+    r = 0;
+    color["g"] = 0;
+    g = 0;
+    color["b"] = 0;
+    b = 0;
+    serializeJson(stateInfo, stateJson);
+    std::string availabilityJson;
+    JsonDocument availabilityInfoDoc;
+    availabilityInfoDoc["availability"] = Availability.available;
+    serializeJson(availabilityInfoDoc, availabilityJson);
+    Mqtt::publish(lightInfo.stateTopic, stateJson);
+    Mqtt::publish(lightInfo.availabilityTopic, availabilityJson);
+}
+
+void Light::operatePin() {
+    auto clamp8 = [](int v)->uint8_t { return v < 0 ? 0 : (v > 255 ? 255 : v); };
+    if (!isOn) {
+        turnOff();
+        return;
+    }
+    uint8_t r8 = clamp8(r);
+    uint8_t g8 = clamp8(g);
+    uint8_t b8 = clamp8(b);
+    uint8_t cw8 = clamp8(cw);
+    uint8_t ww8 = clamp8(ww);
+    uint8_t br8 = clamp8(brightness);
+
+    uint32_t rGamma = correctGamma(r8);
+    uint32_t gGamma = correctGamma(g8);
+    uint32_t bGamma = correctGamma(b8);
+    uint32_t cwGamma = correctGamma(cw8);
+    uint32_t wwGamma = correctGamma(ww8);
+    uint32_t brGamma = correctGamma(br8);
+
+    auto mixHw = [this](uint32_t cG, uint32_t bG) -> uint32_t {
+        return static_cast<uint32_t>((static_cast<uint64_t>(cG) * bG + (maxPwm / 2)) / maxPwm);
+    };
+
+    uint32_t rSetpoint = mixHw(rGamma, brGamma);
+    uint32_t gSetpoint = mixHw(gGamma, brGamma);
+    uint32_t bSetpoint = mixHw(bGamma, brGamma);
+    uint32_t cwSetpoint = 0;
+    uint32_t wwSetpoint = 0;
+
+    if (activeMode == ActiveMode::modeCct) {
+        uint32_t peak = cwGamma > wwGamma ? cwGamma : wwGamma;
+        if (peak > 0) {
+            uint32_t cwGammaUp = static_cast<uint32_t>(
+                (static_cast<uint64_t>(cwGamma) * maxPwm + (peak / 2)) / peak
+            );
+            uint32_t wwGammaUp = static_cast<uint32_t>(
+                (static_cast<uint64_t>(wwGamma) * maxPwm + (peak / 2)) / peak
+            );
+            if (cwGammaUp > maxPwm) cwGammaUp = maxPwm;
+            if (wwGammaUp > maxPwm) wwGammaUp = maxPwm;
+
+            cwSetpoint = mixHw(cwGammaUp, brGamma);
+            wwSetpoint = mixHw(wwGammaUp, brGamma);
+        } else {
+            cwSetpoint = wwSetpoint = 0;
+        }
+    } else {
+        cwSetpoint = mixHw(cwGamma, brGamma);
+        wwSetpoint = mixHw(wwGamma, brGamma);
+    }
+
+    if (pinR) pinR->setLedLevel(rSetpoint);
+    if (pinG) pinG->setLedLevel(gSetpoint);
+    if (pinB) pinB->setLedLevel(bSetpoint);
+    if (pinCW) pinCW->setLedLevel(cwSetpoint);
+    if (pinWW) pinWW->setLedLevel(wwSetpoint);
+}
+
+void Light::subscribeToMqttTopics() {
+    Mqtt::subscribe(lightInfo.commandTopic, [this](uint8_t* payload, int length) {
+        std::string command(reinterpret_cast<char*>(payload), length);
+        handleCommand(command);
+    });
+}
+
+void Light::handleCommand(const std::string& command) {
+    Serial.println("Received command: " + String(command.c_str()));
+    JsonDocument commandJson;
+    deserializeJson(commandJson, command);
+    if (commandJson.isNull()) {
+        Serial.println("Invalid command JSON");
+        return;
+    }
+    if (commandJson["state"].is<String>()) {
+        std::string state = commandJson["state"].as<std::string>();
+        if (state == "ON") {
+            isOn = true;
+        } else if (state == "OFF") {
+            isOn = false;
+        }
+    }
+    if (commandJson["brightness"].is<int>()) {
+        brightness = commandJson["brightness"].as<int>();
+    }
+    if (commandJson["color"].is<JsonObject>()) {
+        JsonObject color = commandJson["color"];
+        r = color["r"] | maxPwmUi;
+        g = color["g"] | maxPwmUi;
+        b = color["b"] | maxPwmUi;
+        cw = 0;
+        ww = 0;
+        activeMode = ActiveMode::modeRgb;
+    }
+    if (commandJson["color_temp"].is<int>()) {
+        colorTemperature = commandJson["color_temp"].as<int>();
+        applyKelvin(colorTemperature);
+    }
+    if (lightType == LightType::rgb || lightType == LightType::rgbw || lightType == LightType::rgbww)
+    {
+        operatePin();
+        publishCurrentState();
+    }
+}
+
+void Light::turnOff() {
+    isOn = false;
+    if (pinR != nullptr) pinR->setLedLevel(0);
+    if (pinG != nullptr) pinG->setLedLevel(0);
+    if (pinB != nullptr) pinB->setLedLevel(0);
+    if (pinCW != nullptr) pinCW->setLedLevel(0);
+    if (pinWW != nullptr) pinWW->setLedLevel(0);
+}
+
+void Light::publishCurrentState() {
+    // Publish the current state of the light
+    JsonDocument stateInfo;
+    JsonDocument attributeInfo;
+    stateInfo["state"] = isOn ? "ON" : "OFF";
+    stateInfo["availability"] = Availability.available; // Current availability
+    stateInfo["brightness"] = brightness;
+    if (activeMode == ActiveMode::modeRgb) {
+        JsonObject color = stateInfo["color"].to<JsonObject>();
+        color["r"] = r;
+        color["g"] = g;
+        color["b"] = b;
+        stateInfo["color_mode"] = "rgb";
+    } else if (activeMode == ActiveMode::modeCct) {
+        stateInfo["color_temp"] = colorTemperature;
+        stateInfo["color_mode"] = "color_temp";
+    }
+    attributeInfo["pwmR"] = pinR->getLedLevel();
+    attributeInfo["pwmG"] = pinG->getLedLevel();
+    attributeInfo["pwmB"] = pinB->getLedLevel();
+    if (pinCW != nullptr)
+        attributeInfo["pwmCW"] = pinCW->getLedLevel();
+    if (pinWW != nullptr)
+        attributeInfo["pwmWW"] = pinWW->getLedLevel();
+
+    std::string stateJson;
+    serializeJson(stateInfo, stateJson);
+    Serial.println("Publishing current state: " + String(stateJson.c_str()));
+    Mqtt::publish(lightInfo.stateTopic, stateJson);
+    std::string attributeJson;
+    serializeJson(attributeInfo, attributeJson);
+    Serial.println("Publishing current attributes: " + String(attributeJson.c_str()));
+    Mqtt::publish(lightInfo.jsonAttributesTopic, attributeJson);
+}
+
+uint32_t Light::correctGamma(uint32_t originalPwm) {
+    double normalized = static_cast<double>(originalPwm) / maxPwmUi;
+    if (normalized <= 0.04045) {
+        return static_cast<uint32_t>((normalized / 12.92) * maxPwm);
+    } else {
+        return static_cast<uint32_t>(pow((normalized + 0.055) / 1.055, gammaCorrection) * maxPwm);
+    }
+}
+
+void Light::applyKelvin(uint32_t kelvin) {
+    if (kelvin > cwTempKelvin) kelvin = cwTempKelvin;
+    if (kelvin < wwTempKelvin) kelvin = wwTempKelvin;
+    double tLin = static_cast<double>(kelvin - wwTempKelvin) / static_cast<double>(cwTempKelvin - wwTempKelvin);
+    r = 0;
+    g = 0;
+    b = 0;
+    cw = static_cast<uint8_t>(tLin * maxPwmUi);
+    ww = static_cast<uint8_t>((1.0 - tLin) * maxPwmUi);
+    activeMode = ActiveMode::modeCct;
+}

lib/light/light.h

@@ -0,0 +1,103 @@
+#pragma once
+
+#include <cstdint>
+#include "pin.h"
+
+struct LightInfo {
+    std::string uniqueId;
+    const std::string name = "Smart RGB Light";
+    const std::string discoveryTopic = "homeassistant/light/smart_rgb_light/light/config";
+    const std::string baseTopic = "studiotj/smart-rgb/light";
+    const std::string availabilityTopic = "studiotj/smart-rgb/light/status";
+    const std::string stateTopic = "studiotj/smart-rgb/light/state";
+    const std::string jsonAttributesTopic = "studiotj/smart-rgb/light/attributes";
+    const std::string stateValueTemplate = "{{ value_json.state }}";
+    const std::string commandTopic = "studiotj/smart-rgb/light/state/set";
+    const std::string brightnessCommandTopic = "studiotj/smart-rgb/light/brightness/set";
+    const std::string brightnessValueTemplate = "{{ value_json.brightness }}";
+    const std::string colorTempCommandTopic = "studiotj/smart-rgb/light/color_temp/set";
+    const std::string colorTempKelvinTopic = "studiotj/smart-rgb/light/color_temp_kelvin/set";
+    const std::string colorTempStateTopic = "studiotj/smart-rgb/light/color_temp/state";
+    const std::string colorTempValueTemplate = "{{ value_json.color_temp }}";
+    const std::string hsCommandTopic = "studiotj/smart-rgb/light/hs/set";
+    const std::string hsCommandTemplate = "{{ value_json.hs_cmd }}";
+    const std::string hsStateTopic = "studiotj/smart-rgb/light/hs/state";
+    const std::string hsValueTemplate = "   {{ value_json.hs_value }}";
+    const std::string rgbCommandTopic = "studiotj/smart-rgb/light/rgb/set";
+    const std::string rgbCommandTemplate = "{{ {'rgb': [red, green, blue]} | to_json }}";
+    const std::string rgbStateTopic = "studiotj/smart-rgb/light/rgb/state";
+    const std::string rgbValueTemplate = "{{ value_json.rgb | join(',') }}";
+    const std::string rgbwCommandTopic = "studiotj/smart-rgb/light/rgbw/set";
+    const std::string rgbwCommandTemplate = "{{ value_json.rgbw_cmd }}";
+    const std::string rgbwStateTopic = "studiotj/smart-rgb/light/rgbw/state";
+    const std::string rgbwValueTemplate = "{{ value_json.rgbw_value }}";
+    const std::string rgbwwCommandTopic = "studiotj/smart-rgb/light/rgbww/set";
+    const std::string rgbwwCommandTemplate = "{{ value_json.rgbww_cmd }}";
+    const std::string rgbwwStateTopic = "studiotj/smart-rgb/light/rgbww/state";
+    const std::string rgbwwValueTemplate = "{{ value_json.rgbww_value }}";
+    const std::string supportedColorModesTopic = "studiotj/smart-rgb/light/supported_color_modes";
+    const std::string supportedColorModesValue = "['rgb', 'brightness']";
+    const std::string availabilityTemplate = "{{ value_json.availability }}";
+};
+
+struct DeviceInfo {
+    std::string name = "Smart RGB Light";
+    std::string model = "smart_rgb_light";
+    std::string identifier = "smart_rgb_light_";
+    std::string swVersion = "1.0"; // TODO: version will be generated.
+    std::string manufacturer = "Studio TJ";
+};
+
+enum LightType {
+    onOff,
+    brightness,
+    colorTemperature,
+    rgb,
+    rgbw,
+    rgbww,
+};
+
+enum ActiveMode {
+    modeRgb,
+    modeCct
+};
+
+class Light {
+public:
+    Light(Pin* pinR, Pin* pinG, Pin* pinB, std::string uniqueId);
+    Light(Pin* pinR, Pin* pinG, Pin* pinB, Pin* pinCW, std::string uniqueId);
+    Light(Pin* pinR, Pin* pinG, Pin* pinB, Pin* pinCW, Pin* pinWW, std::string uniqueId);
+    void subscribeToMqttTopics();
+    void publishInitialState();
+    void publishCurrentState();
+    void setHsl(uint8_t h, uint8_t s, uint8_t l);
+    void setColorTemperature(uint16_t temperature);
+    void setBrightness(uint8_t brightness);
+    void turnOff();
+
+private:
+    void handleCommand(const std::string& command);
+    void operatePin();
+    uint32_t correctGamma(uint32_t originalPwm);
+    void applyKelvin(uint32_t kelvin);
+    uint8_t r = 0; // Default to white
+    uint8_t g = 0; // Default to white
+    uint8_t b = 0; // Default to white
+    uint8_t cw = 255; // Default to white
+    uint8_t ww = 255; // Default to white
+    const uint32_t cwTempKelvin = 6000;
+    const uint32_t wwTempKelvin = 3000;
+    uint16_t colorTemperature;
+    uint8_t brightness;
+    uint32_t maxPwm;
+    bool isOn = false;
+    Pin* pinR;
+    Pin* pinG;
+    Pin* pinB;
+    Pin* pinCW;
+    Pin* pinWW;
+    LightInfo lightInfo;
+    DeviceInfo deviceInfo;
+    LightType lightType = onOff; // Default light type
+    ActiveMode activeMode = modeRgb;
+};

lib/network/network.cpp

@@ -0,0 +1,38 @@
+
+#include <ESPmDNS.h>
+#include "network.h"
+
+WIFIMANAGER Network::WifiManager;
+AsyncWebServer Network::webServer(80);
+
+Network::Network(std::string hostname, std::string apSsid) : hostname(hostname), apSsid(apSsid) {
+    setHostname(hostname);
+    WifiManager.startBackgroundTask(apSsid.c_str(), "");
+    WifiManager.fallbackToSoftAp(true);
+    WifiManager.attachWebServer(&webServer);
+    WifiManager.attachUI();
+    webServer.on("/", HTTP_GET, [this](AsyncWebServerRequest *request) {
+        request->send(200, "text/html", this->defaultHomepage.c_str());
+    });
+    webServer.begin();
+}
+
+bool Network::isConnected() const {
+    return WiFi.status() == WL_CONNECTED;
+}
+
+std::string Network::getHostname() const {
+    return WiFi.getHostname();
+}
+
+bool Network::setHostname(const std::string &hostname) {
+    return WiFi.setHostname(hostname.c_str());
+}
+
+void Network::registerMDNS() {
+    if (!MDNS.begin(hostname.c_str())) {
+        Serial.println("Error setting up MDNS responder!");
+    } else {
+        Serial.printf("mDNS responder started with hostname: %s\n", hostname.c_str());
+    }
+}

lib/network/network.h

@@ -0,0 +1,30 @@
+#include <Arduino.h>
+#include "wifimanager.h"
+
+class Network {
+public:
+    Network(std::string hostname, std::string apSsid = "Smart RGB");
+    bool isConnected() const;
+    std::string getHostname() const;
+    bool setHostname(const std::string &hostname);
+    void registerMDNS();
+private:
+    static WIFIMANAGER WifiManager;
+    static AsyncWebServer webServer;
+    const std::string defaultHomepage = R"html(
+<!DOCTYPE html>
+<html><head><title>Wifi Manager</title></head>
+<body style="font-family: Arial, sans-serif; margin: 40px;">
+  <h1>Wifi Manager</h1>
+  <ul>
+    <li><a href="/wifi">WiFi Configuration Panel</a></li>
+    <li><a href="/api/wifi/status">WiFi Status (JSON API)</a></li>
+    <li><a href="/api/wifi/configlist">Saved Networks (JSON API)</a></li>
+  </ul>
+  <hr>
+  <p><small>ESP32 WiFi Manager (c) 2022-2025 by Martin Verges</small></p>
+</body></html>
+    )html";
+    std::string hostname;
+    std::string apSsid; // SSID for the fallback AP
+};

lib/ota/ota.cpp

@@ -0,0 +1,34 @@
+#include <ArduinoOTA.h>
+#include "ota.h"
+
+OTAHandler::OTAHandler(std::string hostname) {
+    ArduinoOTA.setHostname(hostname.c_str());
+    ArduinoOTA.onStart([]() {
+        Serial.println("OTA Start");
+    });
+    ArduinoOTA.onEnd([]() {
+        Serial.println("OTA End");
+    });
+    ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+        Serial.printf("OTA Progress: %u%%\n", (progress / (total / 100)));
+    });
+    ArduinoOTA.onError([](ota_error_t error) {
+        Serial.printf("OTA Error[%u]: ", error);
+        if (error == OTA_AUTH_ERROR) {
+            Serial.println("Auth Failed");
+        } else if (error == OTA_BEGIN_ERROR) {
+            Serial.println("Begin Failed");
+        } else if (error == OTA_CONNECT_ERROR) {
+            Serial.println("Connect Failed");
+        } else if (error == OTA_RECEIVE_ERROR) {
+            Serial.println("Receive Failed");
+        } else if (error == OTA_END_ERROR) {
+            Serial.println("End Failed");
+        }
+    });
+    ArduinoOTA.begin();
+}
+
+void OTAHandler::poll() {
+    ArduinoOTA.handle();
+}

lib/ota/ota.h

@@ -0,0 +1,9 @@
+#pragma once
+#include <string>
+
+class OTAHandler {
+public:
+    OTAHandler(std::string hostname);
+
+    void poll();
+};

lib/pin/pin.cpp

@@ -0,0 +1,53 @@
+#include <Arduino.h>
+#include "pin.h"
+
+Pin::Pin(int pinNumber, bool isOutput, bool isLed, uint32_t ledFrequency, uint8_t ledChannel)
+    : pinNumber(pinNumber), output(isOutput), isLed(isLed), ledChannel(ledChannel) {
+    pinMode(pinNumber, isOutput ? OUTPUT : INPUT);
+    if (isLed) {
+        ledcSetup(ledChannel, ledFrequency, ledResolutionBits); // Setup LEDC for PWM with 8-bit resolution
+        ledcAttachPin(pinNumber, ledChannel); // Attach the pin to the LEDC channel
+    }
+}
+
+const uint8_t Pin::getLedResolutionBits() const {
+    return ledResolutionBits;
+}
+
+void Pin::setHigh() {
+    if (output) {
+        digitalWrite(pinNumber, HIGH);
+    }
+}
+
+void Pin::setLow() {
+    if (output) {
+        digitalWrite(pinNumber, LOW);
+    }
+}
+
+void Pin::setLedLevel(uint32_t level) {
+    if (output && isLed) {
+        ledcWrite(ledChannel, level);
+        ledLevel = level;
+    }
+}
+
+uint32_t Pin::getLedLevel() const {
+    return ledLevel;
+}
+
+bool Pin::read() {
+    if (!output) {
+        return digitalRead(pinNumber);
+    }
+    return false;
+}
+
+int Pin::getPinNumber() const {
+    return pinNumber;
+}
+
+bool Pin::isOutput() const {
+    return output;
+}

lib/pin/pin.h

@@ -0,0 +1,22 @@
+#pragma once
+
+class Pin {
+public:
+    Pin(int pinNumber, bool isOutput = true, bool isLed = false, uint32_t ledFrequency = 5000, uint8_t ledChannel = 0);
+    void setHigh();
+    void setLow();
+    void setLedLevel(uint32_t level);
+    uint32_t getLedLevel() const;
+    const uint8_t getLedResolutionBits() const;
+    bool read();
+    int getPinNumber() const;
+    bool isOutput() const;
+
+private:
+    uint8_t ledChannel = 0; // LED channel for PWM
+    uint8_t pinNumber;
+    uint32_t ledLevel = 0;
+    const uint8_t ledResolutionBits = 12;
+    bool output;
+    bool isLed = false; // Flag to indicate if this pin is used for LED control
+};

platformio.ini

@@ -8,7 +8,20 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:esp32dev]
+[env]
 platform = espressif32
 board = esp32dev
 framework = arduino
+monitor_speed = 115200
+lib_deps =
+	martinverges/ESP32 Wifi Manager@^1.5.0
+	esp32async/ESPAsyncWebServer@^3.7.10
+	bblanchon/ArduinoJson@^7.4.2
+	knolleary/PubSubClient@^2.8
+	arkhipenko/TaskScheduler@^3.8.5
+
+[env:esp32dev-serial]
+
+[env:esp32dev-ota]
+upload_protocol = espota
+upload_port = smart-rgb.local

src/main.cpp

@@ -1,18 +1,64 @@
 #include <Arduino.h>
+#include "light.h"
+#include "mqtt.h"
+#include "network.h"
+#include "ota.h"
+#include "pin.h"
+#include "TaskScheduler.h"
+#include "wifimanager.h"
 
-// put function declarations here:
+Network* network = nullptr;
-int myFunction(int, int);
+OTAHandler* otaHandler = nullptr;
+Mqtt* mqttClient = nullptr;
+Light *light = nullptr;
+
+Task *updateTask = nullptr;
+Task *mqttTickTask = nullptr;
+Task *mqttCheckConnectionTask = nullptr;
+
+Pin *pinR = new Pin(16, true, true, 5000, 0); // Example pin numbers, adjust as needed
+Pin *pinG = new Pin(17, true, true, 5000, 1);
+Pin *pinB = new Pin(18, true, true, 5000, 2);
+Pin *pinCW = new Pin(19, true, true, 5000, 3);
+Pin *pinWW = new Pin(21, true, true, 5000, 4);
+
+Scheduler *scheduler;
+
+void initializeScheduler();
 
 void setup() {
-  // put your setup code here, to run once:
+    // put your setup code here, to run once:
-  int result = myFunction(2, 3);
+    Serial.begin(115200);
+    Serial.println("Starting Smart RGB ESP32...");
+    pinR->setLedLevel(0);
+    pinG->setLedLevel(0);
+    pinB->setLedLevel(0);
+    pinCW->setLedLevel(0);
+    pinWW->setLedLevel(0);
+    network = new Network("smart-rgb");
+    otaHandler = new OTAHandler("smart-rgb-ota");
+    network->registerMDNS();
+    Mqtt::connect("10.238.75.81", 1883, "smart_rgb_client", "mqtt", "mqtt");
+    delay(1000); // Wait for MQTT connection to stabilize
+    light = new Light(pinR, pinG, pinB, pinCW, pinWW, "smart_rgb_light");
+    initializeScheduler();
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+    scheduler->execute(); // Execute the scheduler to run tasks
+    yield(); // Yield to allow other tasks to run
 }
 
-// put function definitions here:
+void initializeScheduler() {
-int myFunction(int x, int y) {
+    scheduler = new Scheduler();
-  return x + y;
+    updateTask = new Task(TASK_SECOND, TASK_FOREVER, []() {
+        otaHandler->poll(); // Poll for OTA updates
+
+    }, scheduler, true, nullptr, nullptr);
+    mqttTickTask = new Task(TASK_MILLISECOND * 100, TASK_FOREVER, []() {
+        Mqtt::poll(); // Poll MQTT client for messages
+    }, scheduler, true, nullptr, nullptr);
+    mqttCheckConnectionTask = new Task(TASK_SECOND * 30, TASK_FOREVER, []() {
+        Mqtt::checkConnection(); // Check MQTT connection status
+    }, scheduler, true, nullptr, nullptr);
 }