Initialisation depot

include/MqttManager.h

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+#pragma once
+#include <functional>
+#include <PubSubClient.h>
+#include <WiFiClient.h>
+
+class MqttManager {
+public:
+  using MessageCallback = std::function<void(char*, uint8_t*, unsigned int)>;
+  MqttManager();
+  void begin(const char* server, uint16_t port, MessageCallback cb);
+  void loop();
+  bool publish(const char* topic, const char* payload);
+  bool subscribe(const char* topic);
+  bool connected();
+private:
+  WiFiClient espClient;
+  PubSubClient client{espClient};
+  MessageCallback messageCb;
+  const char* serverAddr = nullptr;
+  uint16_t serverPort = 0;
+  static MqttManager* instance;
+  static void staticCallback(char* topic, byte* payload, unsigned int length);
+  void connect();
+};

include/WifiManager.h

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+#pragma once
+#include <Arduino.h>
+#include <WiFi.h>
+#include <WebServer.h>
+
+class WifiManager {
+public:
+  WifiManager();
+  void begin();
+  bool isConnected();
+  void loop();
+  String getSSID();
+  String getPassword();
+private:
+  WebServer server{80};
+  String ssid;
+  String pass;
+  bool apMode;
+  void startAP();
+  void handleRoot();
+  void handleSave();
+  void loadCredentials();
+  void saveCredentials(const String &s, const String &p);
+};

include/config.h

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+#ifndef CONFIG_H
+#define CONFIG_H
+
+// MQTT broker settings (leave MQTT server values as needed)
+#define MQTT_SERVER "192.168.1.10"
+#define MQTT_PORT 1883
+#define MQTT_TOPIC_CMD "dcc/command"
+#define MQTT_TOPIC_STATUS "dcc/status"
+#define MQTT_TOPIC_RESPONSE "dcc/response"
+
+// Pin used for simulated DCC output (adjust as needed)
+#define DCC_OUTPUT_PIN 27
+
+// Access point SSID shown when no WiFi credentials are configured
+#define DEFAULT_AP_SSID "DCC_Config"
+
+#endif // CONFIG_H