  *
  * SECURE_JSON        : use secure json. Default value is 0 (not). Comment it if you want 
  *                     to use standard SDP JSON. 
+ *                      to use standard SDP JSON. 
+ * CONFIGURATION      : change configuration runtime receiving the new one from the broker
  ******************************************************************************************/
 //! Global macro value to define if network connection is cable or Wi-Fi
 #define WIFI 1


//! Global macro value to define if use secure JSON or standard SDP JSON
#define SECURE_JSON 1




        Serial.println( F("SDP no connection") );
        if ( MTTQClient.connect() )
        {
#ifdef CONFIGURATION      
          if ( (MTTQClient.subscribe(getFlashString((const char**) node_table, NODE_TENANT), stream, sensor)) )
          {}
#endif
          Serial.println( F("SDP connected") );
        }
        else
