MQTT reconnect implemented. Compiles, but not tested in HW

light-duino.ino

@@ -85,10 +85,12 @@ bool initializeMQTT() {
 
         // define what to listen to
         subscribeMQTTTopic(strTopicPrefixID + "set");
-
+
+        return true;
       }
+    } else {
+      return true;
     }
-    return true;
   }
   return false;
 }
@@ -248,11 +250,15 @@ void setup() {
 
 void loop() {    
   // check for connection and process MQTT
-  processMQTTLoop();
-
-  // process new mqtt messages
-  if (mqttNewMessage)
-    processMQTTMessage();
+  if (processMQTTLoop()) {
+    // MQTT connection is alive  
+    // process new mqtt messages
+    if (mqttNewMessage)
+      processMQTTMessage();
+  } else {
+    // No MQTT Connection, reinitialize
+    initializeMQTT();
+  }
 
   // check switches
   if (switchesEnabled)

mqtt.h

@@ -59,10 +59,13 @@ bool connectMQTT(String strUser, String strPass, String strHost, uint16_t port =
   return MQTTconnected;
 }
 
-void processMQTTLoop() {
+bool processMQTTLoop() {
   // handle mqtt messages and wifi connection
-  if (mqttClient.connected())
+  if (mqttClient.connected()) {
     mqttClient.loop();
+    return true;
+  }
+  return false;
 }