fixed auto reconnect and resubscribe inside mqtt wrapper loop

src/main.cpp

@@ -34,12 +34,11 @@ void setup()
 {
   Serial.begin(9600);
   LOG_ATTACH_SERIAL(Serial);
-  conf.init();
+  conf.init();  // read the configuration from internal flash
 }
 
 void loop()
 {
-  const uint8_t baseRegister(0x00);
   uint16_t k(0);
   uint8_t sensors(0);
   bool buzzing(false);
@@ -66,10 +65,17 @@ void loop()
   auto mqtt = MQTTwrapper();
   //////////////// NETWORK ////////////////
 
+  std::function<void(const ArduinoJson::JsonDocument &)> mycallback = 
+    [&io](const ArduinoJson::JsonDocument &doc) {
+        io.digitalIOWrite(0, doc["stat"].as<bool>());
+        io.digitalIOWrite(15, doc["stat"].as<bool>());
+    };
+
+
   //////////////// NETWORK ////////////////
   /////////////// CALLBACK ////////////////
   Network.onEvent(
-      [&eth, &rtc, &mqtt, &buzzer, &led](arduino_event_id_t event, arduino_event_info_t info) -> void
+      [&eth, &rtc, &mqtt, &buzzer, &led, &mycallback](arduino_event_id_t event, arduino_event_info_t info) -> void
       {
         eth.onEvent(event, info); // Arduino Ethernet event handler
         if (!eth.isConnected())
@@ -95,6 +101,7 @@ void loop()
           if (mqtt.connect())
           {
             mqtt.subscribe("test/esp32-in", testAction);
+            mqtt.subscribe("test/esp32-functional", mycallback);
             break;
           }
           delay(100);