diff --git a/README.md b/README.md
index d7b3606..540a153 100644
--- a/README.md
+++ b/README.md
@@ -153,6 +153,9 @@ platformio device monitor -b 115200
 * WIFI_MANAGER_DISABLE //Disable wifi manager for esp8266
 * DHT_DISABLE //disable DHT Input support
 * RESTART_LAN_ON_MQTT_ERRORS //reinit LAN if many mqtt errors occured
+* WITH_STREAMING_LIB use streaming libriary for serial debug output otherwise use PrintEx library
+* DEVICE_NAME short handy device name which is used instead of mac for download config http://{MY_CONFIG_SERVER}/{DEVICE_NAME}_config.json
+* SYSLOG_ENABLE enable UDP SYSLOG support feature(under DEVELOPMENT) that must be configured through config file
 
 
 
@@ -176,5 +179,8 @@ platformio device monitor -b 115200
 * DHT support enabled
 * Wifi manager for esp8266 enabled
 * RESTART_LAN_ON_MQTT_ERRORS disabled
+* WITH_STREAMING_LIB disabled
+* DEVICE_NAME disabled
+* SYSLOG_ENABLE disabled
 
 If you've using Arduino IDE to compile & flash firmware, it will use Default options above and you will not able to configure additional compilers options except edit "options.h" file
diff --git a/build_flags_mega2560-net.sh b/build_flags_mega2560-net.sh
deleted file mode 100644
index 3f2c34c..0000000
--- a/build_flags_mega2560-net.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#! /bin/bash
-# usage:
-# first make your own copy of template
-# cp build_flags_template.sh build_flags_ENVNAME.sh
-# then edit, change or comment something
- export FLAGS="-DMY_CONFIG_SERVER=lazyhome.ru"
- #export FLAGS="$FLAGS -DWATCH_DOG_TICKER_DISABLE"
- #export FLAGS="$FLAGS -DUSE_1W_PIN=12"
- #export FLAGS="$FLAGS -DSD_CARD_INSERTED"
- export FLAGS="$FLAGS -DSERIAL_BAUD=115200"
- #export FLAGS="$FLAGS -DWiz5500"
- #export FLAGS="$FLAGS -DDISABLE_FREERAM_PRINT"
- export FLAGS="$FLAGS -DCUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:fe"
-# export FLAGS="$FLAGS -DDMX_DISABLE"
-# export FLAGS="$FLAGS -DARTNET_ENABLE"
-# export FLAGS="$FLAGS -DMODBUS_DISABLE"
-# export FLAGS="$FLAGS -DOWIRE_DISABLE"
-# export FLAGS="$FLAGS -DAVR_DMXOUT_PIN=18"
-# export FLAGS="$FLAGS -DLAN_INIT_DELAY=2000"
-# export FLAGS="$FLAGS -DCONTROLLINO"
-# export FLAGS="$FLAGS -DESP_WIFI_AP=MYAP"
-# export FLAGS="$FLAGS -DESP_WIFI_PWD=MYPWD"
-# export FLAGS="$FLAGS -DWIFI_MANAGER_DISABLE"
- export FLAGS="$FLAGS -DDHT_DISABLE"
-# export FLAGS="$FLAGS -DRESET_PIN=5"
-# export FLAGS="$FLAGS -DDHCP_RETRY_INTERVAL=60000"
-# export FLAGS="$FLAGS -DRESTART_LAN_ON_MQTT_ERRORS"
-# export FLAGS="$FLAGS -DW5500_CS_PIN=53"
- export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
- echo $FLAGS
diff --git a/build_flags_mega2560.sh b/build_flags_mega2560.sh
deleted file mode 100644
index ee99442..0000000
--- a/build_flags_mega2560.sh
+++ /dev/null
@@ -1,30 +0,0 @@
-#! /bin/bash
-# usage:
-# first make your own copy of template
-# cp build_flags_template.sh build_flags_ENVNAME.sh
-# then edit, change or comment something
- export FLAGS="-DMY_CONFIG_SERVER=lazyhome.ru"
- #export FLAGS="$FLAGS -DWATCH_DOG_TICKER_DISABLE"
- #export FLAGS="$FLAGS -DUSE_1W_PIN=12"
- #export FLAGS="$FLAGS -DSD_CARD_INSERTED"
- export FLAGS="$FLAGS -DSERIAL_BAUD=115200"
- #export FLAGS="$FLAGS -DWiz5500"
- #export FLAGS="$FLAGS -DDISABLE_FREERAM_PRINT"
- export FLAGS="$FLAGS -DCUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:ed"
-# export FLAGS="$FLAGS -DDMX_DISABLE"
-# export FLAGS="$FLAGS -DARTNET_ENABLE"
-# export FLAGS="$FLAGS -DMODBUS_DISABLE"
- export FLAGS="$FLAGS -DOWIRE_DISABLE"
-# export FLAGS="$FLAGS -DAVR_DMXOUT_PIN=18"
-# export FLAGS="$FLAGS -DLAN_INIT_DELAY=2000"
-# export FLAGS="$FLAGS -DCONTROLLINO"
-# export FLAGS="$FLAGS -DESP_WIFI_AP=MYAP"
-# export FLAGS="$FLAGS -DESP_WIFI_PWD=MYPWD"
-# export FLAGS="$FLAGS -DWIFI_MANAGER_DISABLE"
- export FLAGS="$FLAGS -DDHT_DISABLE"
-# export FLAGS="$FLAGS -DRESET_PIN=5"
-# export FLAGS="$FLAGS -DDHCP_RETRY_INTERVAL=60000"
-# export FLAGS="$FLAGS -DRESTART_LAN_ON_MQTT_ERRORS"
-# export FLAGS="$FLAGS -DW5500_CS_PIN=53"
- export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
- echo $FLAGS
diff --git a/build_flags_template.sh b/build_flags_template.sh
index e66e237..86372f0 100644
--- a/build_flags_template.sh
+++ b/build_flags_template.sh
@@ -25,5 +25,7 @@
 # export FLAGS="$FLAGS -DDHCP_RETRY_INTERVAL=60000"
 # export FLAGS="$FLAGS -DRESTART_LAN_ON_MQTT_ERRORS"
 # export FLAGS="$FLAGS -DW5500_CS_PIN=53"
+#export FLAGS="$FLAGS -DSYSLOG_ENABLE"
+#export FLAGS="$FLAGS -DDEVICE_NAME=MYDEVICE"
  export FLAGS="$FLAGS -DPIO_SRC_REV="$(git log --pretty=format:%h_%ad -1 --date=short)
  echo $FLAGS
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 5d3fafe..f1a0a23 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -67,6 +67,14 @@ PWM Out
 #include "Arduino.h"
 #include "main.h"
 #include "options.h"
+#include "utils.h"
+#ifdef WITH_STREAMING_LIB
+#include "Streaming.h"
+#else
+#include "PrintEx.h"
+using namespace ios;
+#endif
+
 
 #if defined(__SAM3X8E__)
 DueFlashStorage EEPROM;
@@ -77,7 +85,7 @@ EthernetClient ethClient;
 EthernetClient ethClient;
 #endif
 
-#ifdef ESP8266
+#ifdef ARDUINO_ARCH_ESP8266
 #include <ESP8266WiFi.h>
 #include <user_interface.h>
 WiFiClient ethClient;
@@ -106,8 +114,7 @@ WiFiClient ethClient;
 EthernetClient ethClient;
 #endif
 
-#ifndef SYSLOG_DISABLE
-//#include <EthernetUdp.h>
+#ifdef SYSLOG_ENABLE
 #include <Syslog.h>
 EthernetUDP udpSyslogClient;
 Syslog udpSyslog(udpSyslogClient, SYSLOG_PROTO_IETF);
@@ -153,51 +160,37 @@ bool wifiInitialized;
 
 int mqttErrorRate;
 
-void watchdogSetup(void) {
-//Serial.begin(115200);
-//debugSerial.println("Watchdog armed.");
-}    //Do not remove - strong re-definition WDT Init for DUE
-
-
-// MQTT Callback routine
-
+void watchdogSetup(void) {}    //Do not remove - strong re-definition WDT Init for DUE
 
 void mqttCallback(char *topic, byte *payload, unsigned int length) {
-
-    debugSerial.print(F("\n["));
-    debugSerial.print(topic);
-    debugSerial.print(F("] "));
+    debugSerial<<F("\n[")<<topic<<F("] ");
     if (!payload) return;
-    payload[length] = 0;
 
+    payload[length] = 0;
     int fr = freeRam();
     if (fr < 250) {
-        debugSerial.println(F("OOM!"));
+        debugSerial<<F("OOM!");
         return;
     }
 
-    for (int i = 0; i < length; i++) {
-        debugSerial.print((char) payload[i]);
-    }
-    debugSerial.println();
+    for (int i = 0; i < length; i++) 
+        debugSerial<<((char) payload[i]);
+    debugSerial<<endl;
 
     if(!strcmp(topic,CMDTOPIC)) {
         cmd_parse((char *)payload);
         return;
     }
 
-    boolean retaining = (lanStatus == RETAINING_COLLECTING);
-    //Check if topic = Command topic
     short intopic = 0;
     {
         char buf[MQTT_TOPIC_LENGTH + 1];
         strncpy_P(buf, inprefix, sizeof(buf));
-
         intopic = strncmp(topic, buf, strlen(inprefix));
     }
     // in Retaining status - trying to restore previous state from retained output topic. Retained input topics are not relevant.
-    if (retaining && !intopic) {
-        debugSerial.println(F("Skipping.."));
+    if ((lanStatus == RETAINING_COLLECTING) && !intopic) {
+        debugSerial<<F("Skipping..");
         return;
     }
     char subtopic[MQTT_SUBJECT_LENGTH] = "";
@@ -208,27 +201,29 @@ void mqttCallback(char *topic, byte *payload, unsigned int length) {
         strncpy(subtopic, t + 1, MQTT_SUBJECT_LENGTH - 1);
     Item item(subtopic);
     if (item.isValid()) {
-        if (item.itemType == CH_GROUP && retaining)
+        if (item.itemType == CH_GROUP && (lanStatus == RETAINING_COLLECTING))
             return; //Do not restore group channels - they consist not relevant data
-        item.Ctrl((char *)payload, !retaining);
+        item.Ctrl((char *)payload, !(lanStatus == RETAINING_COLLECTING));
     } //valid item
 }
 
 void printIPAddress(IPAddress ipAddress) {
-    for (byte thisByte = 0; thisByte < 4; thisByte++) {
-        debugSerial.print(ipAddress[thisByte], DEC);
-        if (thisByte < 3)
-            debugSerial.print(F("."));
-    }
+    for (byte i = 0; i < 4; i++)
+#ifdef WITH_STREAMING_LIB
+            (i < 3) ? debugSerial << _DEC(ipAddress[i]) << F(".") : debugSerial << _DEC(ipAddress[i]) << F(", ");
+#else
+            (i < 3) ? debugSerial << (ipAddress[i]) << F(".") : debugSerial << (ipAddress[i])<<F(", ");
+#endif
 }
 
 void printMACAddress() {
-    debugSerial.print(F("Configured MAC:"));
-    for (byte thisByte = 0; thisByte < 6; thisByte++) {
-        debugSerial.print(mac[thisByte], HEX);
-        debugSerial.print(F(":"));
-    }
-    debugSerial.println();
+    debugSerial<<F("Configured MAC:");
+    for (byte i = 0; i < 6; i++)
+#ifdef WITH_STREAMING_LIB
+        (i < 5) ?debugSerial<<_HEX(mac[i])<<F(":"):debugSerial<<_HEX(mac[i])<<endl;
+#else
+        (i < 5) ?debugSerial<<hex <<(mac[i])<<F(":"):debugSerial<<hex<<(mac[i])<<endl;
+#endif
 }
 
 void restoreState() {
@@ -244,12 +239,13 @@ lan_status lanLoop() {
 
     switch (lanStatus) {
         case INITIAL_STATE:
-            onInitialStateInitLAN();
+            if (millis() > nextLanCheckTime)
+                onInitialStateInitLAN();
             break;
 
         case HAVE_IP_ADDRESS:
             if (!configOk)
-                lanStatus = getConfig(0, NULL); //got config from server or load from NVRAM
+                lanStatus = loadConfigFromHttp(0, NULL);
             else lanStatus = IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER;
 #ifdef _artnet
             if (artnet) artnet->begin();
@@ -271,7 +267,7 @@ lan_status lanLoop() {
                 mqttClient.unsubscribe(buf);
 
                 lanStatus = OPERATION;//3;
-                debugSerial.println(F("Accepting commands..."));
+                debugSerial<<F("Accepting commands...");
                 break;
             }
 
@@ -291,7 +287,7 @@ lan_status lanLoop() {
             break;
 
         case READ_RE_CONFIG:
-            if (loadConfigFromEEPROM(0, NULL)) lanStatus = IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER;//2;
+            if (loadConfigFromEEPROM()) lanStatus = IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER;//2;
             else {
                 nextLanCheckTime = millis() + 5000;
                 lanStatus = AWAITING_ADDRESS;//-10;
@@ -308,32 +304,32 @@ lan_status lanLoop() {
         if (lanStatus > 0)
             switch (Ethernet.maintain()) {
                    case NO_LINK:
-                    debugSerial.println(F("No link"));
+                    debugSerial<<F("No link");
                     if (mqttClient.connected()) mqttClient.disconnect();
                     nextLanCheckTime = millis() + 30000;
                     lanStatus = AWAITING_ADDRESS;//-10;
                     break;
                 case DHCP_CHECK_RENEW_FAIL:
-                    debugSerial.println(F("Error: renewed fail"));
+                    debugSerial<<F("Error: renewed fail");
                     if (mqttClient.connected()) mqttClient.disconnect();
                     nextLanCheckTime = millis() + 1000;
                     lanStatus = AWAITING_ADDRESS;//-10;
                     break;
 
                 case DHCP_CHECK_RENEW_OK:
-                    debugSerial.println(F("Renewed success. IP address:"));
+                    debugSerial<<F("Renewed success. IP address:");
                     printIPAddress(Ethernet.localIP());
                     break;
 
                 case DHCP_CHECK_REBIND_FAIL:
-                    debugSerial.println(F("Error: rebind fail"));
+                    debugSerial<<F("Error: rebind fail");
                     if (mqttClient.connected()) mqttClient.disconnect();
                     nextLanCheckTime = millis() + 1000;
                     lanStatus = AWAITING_ADDRESS;//-10;
                     break;
 
                 case DHCP_CHECK_REBIND_OK:
-                    debugSerial.println(F("Rebind success. IP address:"));
+                    debugSerial<<F("Rebind success. IP address:");
                     printIPAddress(Ethernet.localIP());
                     break;
 
@@ -357,24 +353,21 @@ void ip_ready_config_loaded_connecting_to_broker() {
     char *user = &empty;
     char passwordBuf[16] = "";
     char *password = passwordBuf;
-#ifndef SYSLOG_DISABLE
-    debugSerial.println("debugSerial:");
+#ifdef SYSLOG_ENABLE
+    debugSerial<<"debugSerial:";
     delay(100);
     if (udpSyslogArr && aJson.getArraySize(udpSyslogArr)) {
       char *syslogServer = aJson.getArrayItem(udpSyslogArr, 0)->valuestring;
       int syslogPort = aJson.getArrayItem(udpSyslogArr, 1)->valueint;
       char *syslogDeviceHostname = aJson.getArrayItem(udpSyslogArr, 2)->valuestring;
       char *syslogAppname = aJson.getArrayItem(udpSyslogArr, 3)->valuestring;
-      debugSerial.println("debugSerial:");
-      debugSerial.println(syslogServer);
-      debugSerial.println(syslogPort);
-      debugSerial.println(syslogDeviceHostname);
-      debugSerial.println(syslogAppname);
+      debugSerial<<F("Syslog params:")<<syslogServer<<syslogPort<<syslogDeviceHostname<<syslogAppname;
       udpSyslog.server(syslogServer, syslogPort);
       udpSyslog.deviceHostname(syslogDeviceHostname);
       udpSyslog.appName(syslogAppname);
       udpSyslog.defaultPriority(LOG_KERN);
-      udpSyslog.log(LOG_INFO, "UDP Syslog initialized!");
+      udpSyslog.log(LOG_INFO, F("UDP Syslog initialized!"));
+        debugSerial<<F("UDP Syslog initialized!");
     }  
 #endif
 
@@ -385,25 +378,18 @@ void ip_ready_config_loaded_connecting_to_broker() {
         if (n >= 4) user = aJson.getArrayItem(mqttArr, 3)->valuestring;
         if (!loadFlash(OFFSET_MQTT_PWD, passwordBuf, sizeof(passwordBuf)) && (n >= 5)) {
             password = aJson.getArrayItem(mqttArr, 4)->valuestring;
-            debugSerial.println(F("Using MQTT password from config"));
+            debugSerial<<F("Using MQTT password from config");
         }
 
         mqttClient.setServer(servername, port);
         mqttClient.setCallback(mqttCallback);
 
-        debugSerial.print(F("Attempting MQTT connection to "));
-        debugSerial.print(servername);
-        debugSerial.print(F(":"));
-        debugSerial.print(port);
-        debugSerial.print(F(" user:"));
-        debugSerial.print(user);
-        debugSerial.print(F(" ..."));
+        debugSerial<<F("\nAttempting MQTT connection to ")<<servername<<F(":")<<port<<F(" user:")<<user<<F(" ...");
 
         wdt_dis();  //potential unsafe for ethernetIdle(), but needed to avoid cyclic reboot if mosquitto out of order
         if (mqttClient.connect(client_id, user, password)) {
             mqttErrorRate = 0;
-            debugSerial.print(F("connected as "));
-            debugSerial.println(client_id);
+            debugSerial<<F("connected as ")<<client_id;
             wdt_en();
             configOk = true;
             // ... Temporary subscribe to status topic
@@ -422,16 +408,14 @@ void ip_ready_config_loaded_connecting_to_broker() {
             // if (_once) {DMXput(); _once=0;}
             lanStatus = RETAINING_COLLECTING;//4;
             nextLanCheckTime = millis() + 5000;
-            debugSerial.println(F("Awaiting for retained topics"));
+            debugSerial<<F("Awaiting for retained topics");
         } else {
-            debugSerial.print(F("failed, rc="));
-            debugSerial.print(mqttClient.state());
-            debugSerial.println(F(" try again in 5 seconds"));
+            debugSerial<<F("failed, rc=")<<mqttClient.state()<<F(" try again in 5 seconds");
             nextLanCheckTime = millis() + 5000;
 #ifdef RESTART_LAN_ON_MQTT_ERRORS
             mqttErrorRate++;
                         if(mqttErrorRate>50){
-                            debugSerial.print(F("Too many MQTT connection errors. Restart LAN"));
+                            debugSerial<<F("Too many MQTT connection errors. Restart LAN"));
                             mqttErrorRate=0;
 #ifdef RESET_PIN
                             resetHard();
@@ -447,13 +431,10 @@ void ip_ready_config_loaded_connecting_to_broker() {
 }
 
 void onInitialStateInitLAN() {
-#if defined(ESP8266) and defined(WIFI_MANAGER_DISABLE)
+#if defined(ARDUINO_ARCH_ESP8266) and defined(WIFI_MANAGER_DISABLE)
     if(!wifiInitialized) {
                 WiFi.mode(WIFI_STA);
-                debugSerial.print(F("WIFI AP/Password:"));
-                debugSerial.print(QUOTE(ESP_WIFI_AP));
-                debugSerial.print(F("/"));
-                debugSerial.println(QUOTE(ESP_WIFI_PWD));
+                debugSerial<<F("WIFI AP/Password:")<<QUOTE(ESP_WIFI_AP)<<F("/")<<QUOTE(ESP_WIFI_PWD);
                 wifi_set_macaddr(STATION_IF,mac);
                 WiFi.begin(QUOTE(ESP_WIFI_AP), QUOTE(ESP_WIFI_PWD));
                 wifiInitialized = true;
@@ -464,30 +445,31 @@ void onInitialStateInitLAN() {
     if(!wifiInitialized) {
         WiFi.mode(WIFI_STA);
         WiFi.disconnect();
-        debugSerial.print(F("WIFI AP/Password:"));
-        debugSerial.print(QUOTE(ESP_WIFI_AP));
-        debugSerial.print(F("/"));
-        debugSerial.println(QUOTE(ESP_WIFI_PWD));
+        debugSerial<<F("WIFI AP/Password:"));
+        debugSerial<<QUOTE(ESP_WIFI_AP));
+        debugSerial<<F("/"));
+        debugSerial<<QUOTE(ESP_WIFI_PWD));
         WiFi.begin(QUOTE(ESP_WIFI_AP), QUOTE(ESP_WIFI_PWD));
 
         int wifi_connection_wait = 10000;
         while (WiFi.status() != WL_CONNECTED && wifi_connection_wait > 0) {
             delay(500);
             wifi_connection_wait -= 500;
-            debugSerial.print(".");
+            debugSerial<<".");
         }
         wifiInitialized = true;
     }
 #endif
 
-#if defined(ARDUINO_ARCH_ESP32) || defined(ESP8266)
+#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_ESP8266)
     if (WiFi.status() == WL_CONNECTED) {
-        debugSerial.print(F("WiFi connected. IP address: "));
-        debugSerial.println(WiFi.localIP());
+        debugSerial<<F("WiFi connected. IP address: ");
+        debugSerial<<WiFi.localIP();
         lanStatus = HAVE_IP_ADDRESS;//1;
     } else
     {
-        debugSerial.println(F("Problem with WiFi connected"));
+
+        debugSerial<<F("Problem with WiFi!");
         nextLanCheckTime = millis() + DHCP_RETRY_INTERVAL/5;
     }
 #endif
@@ -495,33 +477,33 @@ void onInitialStateInitLAN() {
 #if defined(__AVR__) || defined(__SAM3X8E__)||defined(ARDUINO_ARCH_STM32F1)
 #ifdef W5500_CS_PIN
     Ethernet.w5500_cspin = W5500_CS_PIN;
-    debugSerial.print(F("Use W5500 pin: "));
-    debugSerial.println(Ethernet.w5500_cspin);
+    debugSerial<<F("Use W5500 pin: "));
+    debugSerial<<Ethernet.w5500_cspin);
 #endif
     IPAddress ip, dns, gw, mask;
     int res = 1;
-    debugSerial.println(F("Starting lan"));
+    debugSerial<<F("Starting lan");
     if (ipLoadFromFlash(OFFSET_IP, ip)) {
-        debugSerial.print("Loaded from flash IP:");
+        debugSerial<<"Loaded from flash IP:";
         printIPAddress(ip);
         if (ipLoadFromFlash(OFFSET_DNS, dns)) {
-            debugSerial.print(" DNS:");
+            debugSerial<<" DNS:";
             printIPAddress(dns);
             if (ipLoadFromFlash(OFFSET_GW, gw)) {
-                debugSerial.print(" GW:");
+                debugSerial<<" GW:";
                 printIPAddress(gw);
                 if (ipLoadFromFlash(OFFSET_MASK, mask)) {
-                    debugSerial.print(" MASK:");
+                    debugSerial<<" MASK:";
                     printIPAddress(mask);
                     Ethernet.begin(mac, ip, dns, gw, mask);
                 } else Ethernet.begin(mac, ip, dns, gw);
             } else Ethernet.begin(mac, ip, dns);
         } else Ethernet.begin(mac, ip);
-    debugSerial.println();
+    debugSerial<<endl;
     lanStatus = HAVE_IP_ADDRESS;
     }
     else {
-        debugSerial.println("No IP data found in flash");
+        debugSerial<<"\nNo IP data found in flash";
         wdt_dis();
 #if defined(__AVR__) || defined(__SAM3X8E__)
         res = Ethernet.begin(mac, 12000);
@@ -534,15 +516,14 @@ void onInitialStateInitLAN() {
 
 
     if (res == 0) {
-        debugSerial.println(F("Failed to configure Ethernet using DHCP. You can set ip manually!"));
-        debugSerial.print(F("'ip [ip[,dns[,gw[,subnet]]]]' - set static IP\n"));
+        debugSerial<<F("Failed to configure Ethernet using DHCP. You can set ip manually!")<<F("'ip [ip[,dns[,gw[,subnet]]]]' - set static IP\n");
         lanStatus = AWAITING_ADDRESS;//-10;
         nextLanCheckTime = millis() + DHCP_RETRY_INTERVAL;
 #ifdef RESET_PIN
         resetHard();
 #endif
     } else {
-        debugSerial.println(F("Got IP address:"));
+        debugSerial<<F("Got IP address:");
         printIPAddress(Ethernet.localIP());
         lanStatus = HAVE_IP_ADDRESS;//1;
     }
@@ -558,19 +539,22 @@ void softRebootFunc() {
 
 #if defined(__AVR__) || defined(__SAM3X8E__)
 void (*softRebootFunc)(void) = 0;
+
+void printCurentLanConfig();
+
 #endif
 
-#if defined(ESP8266) || defined(ARDUINO_ARCH_ESP32)
+#if defined(ARDUINO_ARCH_ESP8266) || defined(ARDUINO_ARCH_ESP32)
 void softRebootFunc(){
-    debugSerial.print(F("ESP.restart();"));
+    debugSerial<<F("ESP.restart();");
     ESP.restart();
 }
 #endif
 
 void resetHard() {
 #ifdef RESET_PIN
-    debugSerial.print(F("Reset Arduino with digital pin "));
-    debugSerial.println(QUOTE(RESET_PIN));
+    debugSerial<<F("Reset Arduino with digital pin "));
+    debugSerial<<QUOTE(RESET_PIN));
     delay(500);
     pinMode(RESET_PIN, OUTPUT);
     digitalWrite(RESET_PIN,LOW);
@@ -597,12 +581,10 @@ void Changed(int i, DeviceAddress addr, int val) {
         owEmit = aJson.getObjectItem(owObj, "emit")->valuestring;
         if (owEmit) {
             strncpy(addrbuf, owEmit, sizeof(addrbuf));
-            debugSerial.print(owEmit);
-            debugSerial.print(F("="));
-            debugSerial.println(val);
+            debugSerial<<owEmit<<F("=")<<val;
         }
         owItem = aJson.getObjectItem(owObj, "item")->valuestring;
-    } else debugSerial.println(F("1w-item not found in config"));
+    } else debugSerial<<F("1w-item not found in config");
 
     if ((val == -127) || (val == 85) || (val == 0)) { //ToDo: 1-w short circuit mapped to "0" celsium
         return;
@@ -621,14 +603,14 @@ void Changed(int i, DeviceAddress addr, int val) {
 #endif //_owire
 
 void cmdFunctionHelp(int arg_cnt, char **args)
-//(char* tokens)
 {
     printFirmwareVersionAndBuildOptions();
-    #ifndef SYSLOG_DISABLE
+    #ifdef SYSLOG_ENABLE
 //    udpSyslog.logf(LOG_INFO, "free RAM: %d",freeRam());
     #endif
-    debugSerial.print(F(" free RAM: "));debugSerial.print(freeRam());
-    debugSerial.println(F(" Use the commands: 'help' - this text\n"
+    printCurentLanConfig();
+    printFreeRam();
+    debugSerial<<F("\nUse these commands: 'help' - this text\n"
                           "'mac de:ad:be:ef:fe:00' set and store MAC-address in EEPROM\n"
                           "'ip [ip[,dns[,gw[,subnet]]]]' - set static IP\n"
                           "'save' - save config in NVRAM\n"
@@ -637,18 +619,26 @@ void cmdFunctionHelp(int arg_cnt, char **args)
                           "'pwd' - define MQTT password\n"
                           "'kill' - test watchdog\n"
                           "'clear' - clear EEPROM\n"
-                          "'reboot' - reboot controller"));
+                          "'reboot' - reboot controller");
+}
+
+void printCurentLanConfig() {
+    debugSerial << F("Current LAN config(ip,dns,gw,subnet):");
+    printIPAddress(Ethernet.localIP());
+    printIPAddress(Ethernet.dnsServerIP());
+    printIPAddress(Ethernet.gatewayIP());
+    printIPAddress(Ethernet.subnetMask());
 }
 
 void cmdFunctionKill(int arg_cnt, char **args) {
-    for (short i = 1; i < 20; i++) {
+    for (byte i = 1; i < 20; i++) {
         delay(1000);
-        debugSerial.println(i);
+        debugSerial<<i;
     };
 }
 
 void cmdFunctionReboot(int arg_cnt, char **args) {
-    debugSerial.println(F("Soft rebooting..."));
+    debugSerial<<F("Soft rebooting...");
     softRebootFunc();
 }
 
@@ -660,8 +650,7 @@ void applyConfig() {
     dmxArr = aJson.getObjectItem(root, "dmxin");
     if (dmxArr && (itemsCount = aJson.getArraySize(dmxArr))) {
         DMXinSetup(itemsCount * 4);
-        debugSerial.print(F("DMX in started. Channels:"));
-        debugSerial.println(itemsCount * 4);
+        debugSerial<<F("DMX in started. Channels:")<<itemsCount * 4;
     }
 #endif
 #ifdef _dmxout
@@ -669,9 +658,7 @@ void applyConfig() {
     aJsonObject *dmxoutArr = aJson.getObjectItem(root, "dmx");
     if (dmxoutArr && aJson.getArraySize(dmxoutArr) >=1 ) {
         DMXoutSetup(maxChannels = aJson.getArrayItem(dmxoutArr, 1)->valueint);
-        //,aJson.getArrayItem(dmxoutArr, 0)->valueint);
-        debugSerial.print(F("DMX out started. Channels: "));
-        debugSerial.println(maxChannels);
+        debugSerial<<F("DMX out started. Channels: ")<<maxChannels;
     }
 #endif
 #ifdef _modbus
@@ -683,12 +670,12 @@ void applyConfig() {
     if (owArr && !owReady) {
         aJsonObject *item = owArr->child;
         owReady = owSetup(&Changed);
-        if (owReady) debugSerial.println(F("One wire Ready"));
+        if (owReady) debugSerial<<F("One wire Ready");
         t_count = 0;
         while (item && owReady) {
             if ((item->type == aJson_Object)) {
                 DeviceAddress addr;
-                //debugSerial.print(F("Add:")),debugSerial.println(item->name);
+                //debugSerial<<F("Add:")),debugSerial<<item->name);
                 SetAddr(item->name, addr);
                 owAdd(addr);
             }
@@ -716,10 +703,7 @@ void applyConfig() {
                             int k;
                             pinMode(pin, OUTPUT);
                             digitalWrite(pin, k = ((cmd == CMD_ON) ? HIGH : LOW));
-                            debugSerial.print(F("Pin:"));
-                            debugSerial.print(pin);
-                            debugSerial.print(F("="));
-                            debugSerial.println(k);
+                            debugSerial<<F("Pin:")<<pin<<F("=")<<k;
                         }
                             break;
                     } //switch
@@ -735,50 +719,46 @@ void applyConfig() {
 }
 
 void printConfigSummary() {
-    debugSerial.println(F("Configured:"));
-    debugSerial.print(F("items "));
+    debugSerial<<F("\nConfigured:")<<F("\nitems ");
     printBool(items);
-    debugSerial.print(F("inputs "));
+    debugSerial<<F("\ninputs ");
     printBool(inputs);
-    debugSerial.print(F("modbus "));
+    debugSerial<<F("\nmodbus ");
     printBool(modbusArr);
-    debugSerial.print(F("mqtt "));
+    debugSerial<<F("\nmqtt ");
     printBool(mqttArr);
-    debugSerial.print(F("1-wire "));
+    debugSerial<<F("\n1-wire ");
     printBool(owArr);
-    debugSerial.print(F("udp syslog "));
+    debugSerial<<F("\nudp syslog ");
     printBool(udpSyslogArr);
 }
 
 void cmdFunctionLoad(int arg_cnt, char **args) {
-    loadConfigFromEEPROM(arg_cnt, args);
+    loadConfigFromEEPROM();
     restoreState();
 }
 
-int loadConfigFromEEPROM(int arg_cnt, char **args)
-//(char* tokens)
+int loadConfigFromEEPROM()
 {
     char ch;
-    debugSerial.println(F("loading Config"));
+    debugSerial<<F("loading Config");
 
     ch = EEPROM.read(EEPROM_offset);
     if (ch == '{') {
         aJsonEEPROMStream as = aJsonEEPROMStream(EEPROM_offset);
         aJson.deleteItem(root);
         root = aJson.parse(&as);
-        debugSerial.println();
         if (!root) {
-            debugSerial.println(F("load failed"));
+            debugSerial<<F("\nload failed");
             return 0;
         }
-        debugSerial.println(F("Loaded"));
+        debugSerial<<F("\nLoaded");
         applyConfig();
         ethClient.stop(); //Refresh MQTT connect to get retained info
         return 1;
     } else {
-        debugSerial.println(F("No stored config"));
+        debugSerial<<F("\nNo stored config");
         return 0;
-
     }
 }
 
@@ -789,52 +769,44 @@ void cmdFunctionReq(int arg_cnt, char **args) {
 
 
 int mqttConfigRequest(int arg_cnt, char **args)
-//(char* tokens)
 {
     char buf[25] = "/";
-    debugSerial.println(F("request MQTT Config"));
+    debugSerial<<F("\nrequest MQTT Config");
     SetBytes((uint8_t *) mac, 6, buf + 1);
     buf[13] = 0;
     strncat(buf, "/resp/#", 25);
-    debugSerial.println(buf);
+    debugSerial<<buf;
     mqttClient.subscribe(buf);
     buf[13] = 0;
     strncat(buf, "/req/conf", 25);
-    debugSerial.println(buf);
+    debugSerial<<buf;
     mqttClient.publish(buf, "1");
-
 }
 
 
 int mqttConfigResp(char *as) {
-    debugSerial.println(F("got MQTT Config"));
-
-    //aJsonEEPROMStream as=aJsonEEPROMStream(EEPROM_offset);
-
-    //aJson.deleteItem(root);
+    debugSerial<<F("got MQTT Config");
     root = aJson.parse(as);
-    debugSerial.println();
+
     if (!root) {
-        debugSerial.println(F("load failed"));
+        debugSerial<<F("\nload failed");
         return 0;
     }
-    debugSerial.println(F("Loaded"));
+    debugSerial<<F("\nLoaded");
     applyConfig();
     return 1;
 }
 
 void cmdFunctionSave(int arg_cnt, char **args)
-//(char* tokens)
 {
     aJsonEEPROMStream jsonEEPROMStream = aJsonEEPROMStream(EEPROM_offset);
-    debugSerial.println(F("Saving config to EEPROM.."));
+    debugSerial<<F("Saving config to EEPROM..");
     aJson.print(root, &jsonEEPROMStream);
     jsonEEPROMStream.putEOF();
-    debugSerial.println(F("Saved to EEPROM"));
+    debugSerial<<F("Saved to EEPROM");
 }
 
 void cmdFunctionIp(int arg_cnt, char **args)
-//(char* tokens)
 {
     IPAddress ip0(0, 0, 0, 0);
     IPAddress ip;
@@ -862,63 +834,47 @@ void cmdFunctionIp(int arg_cnt, char **args)
             saveFlash(OFFSET_MASK, current_mask);
             saveFlash(OFFSET_GW, current_gw);
             saveFlash(OFFSET_DNS, current_dns);
-            debugSerial.print(F("Saved current config(ip,dns,gw,subnet):"));
+            debugSerial<<F("Saved current config(ip,dns,gw,subnet):");
             printIPAddress(current_ip);
-            debugSerial.print(F(" ,"));
             printIPAddress(current_dns);
-            debugSerial.print(F(" ,"));
             printIPAddress(current_gw);
-            debugSerial.print(F(" ,"));
             printIPAddress(current_mask);
-            debugSerial.println(F(";"));
-
     }
-    debugSerial.println(F("Saved"));
+    debugSerial<<F("Saved");
 }
 
 void cmdFunctionClearEEPROM(int arg_cnt, char **args){
     for (int i = 0; i < 512; i++)
         EEPROM.write(i, 0);
-    debugSerial.println(F("EEPROM cleared"));
+    debugSerial<<F("EEPROM cleared");
 
 }
 
 void cmdFunctionPwd(int arg_cnt, char **args)
-//(char* tokens)
 { char empty[]="";
     if (arg_cnt)
         saveFlash(OFFSET_MQTT_PWD,args[1]);
     else saveFlash(OFFSET_MQTT_PWD,empty);
-    debugSerial.println(F("Password updated"));
+    debugSerial<<F("Password updated");
 }
 
 void cmdFunctionSetMac(int arg_cnt, char **args) {
-
-    //debugSerial.print("Got:");
-    //debugSerial.println(args[1]);
-    if (sscanf(args[1], "%x:%x:%x:%x:%x:%x%с",
-               &mac[0],
-               &mac[1],
-               &mac[2],
-               &mac[3],
-               &mac[4],
-               &mac[5]) < 6) {
-        debugSerial.print(F("could not parse: "));
-        debugSerial.println(args[1]);
+    if (sscanf(args[1], "%x:%x:%x:%x:%x:%x%с", &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) < 6) {
+        debugSerial<<F("could not parse: ")<<args[1];
         return;
     }
     printMACAddress();
     for (short i = 0; i < 6; i++) { EEPROM.write(i, mac[i]); }
-    debugSerial.println(F("Updated"));
+    debugSerial<<F("Updated");
 }
 
 void cmdFunctionGet(int arg_cnt, char **args) {
-    lanStatus=getConfig(arg_cnt, args);
+    lanStatus= loadConfigFromHttp(arg_cnt, args);
     ethClient.stop(); //Refresh MQTT connect to get retained info
     //restoreState();
 }
 
-void printBool(bool arg) { (arg) ? debugSerial.println(F("on")) : debugSerial.println(F("off")); }
+void printBool(bool arg) { (arg) ? debugSerial<<F("on") : debugSerial<<F("off"); }
 
 
 void saveFlash(short n, char *str) {
@@ -943,12 +899,12 @@ void saveFlash(short n, IPAddress& ip) {
 }
 
 int ipLoadFromFlash(short n, IPAddress &ip) {
-    for(int i=0;i<4;i++) ip[i]=EEPROM.read(n++);
-    if (ip[0] && (ip[0] != 0xff)) return 1;
-    return 0;
+    for (int i = 0; i < 4; i++)
+        ip[i] = EEPROM.read(n++);
+    return (ip[0] && (ip[0] != 0xff));
 }
 
-lan_status getConfig(int arg_cnt, char **args)
+lan_status loadConfigFromHttp(int arg_cnt, char **args)
 {
     int responseStatusCode = 0;
     char ch;
@@ -959,12 +915,13 @@ lan_status getConfig(int arg_cnt, char **args)
         saveFlash(OFFSET_CONFIGSERVER, configServer);
     } else if (!loadFlash(OFFSET_CONFIGSERVER, configServer))
         strncpy_P(configServer,configserver,sizeof(configServer));
-
+#ifndef DEVICE_NAME
     snprintf(URI, sizeof(URI), "/%02x-%02x-%02x-%02x-%02x-%02x.config.json", mac[0], mac[1], mac[2], mac[3], mac[4],
              mac[5]);
-    debugSerial.print(F("Config URI: http://"));
-    debugSerial.print(configServer);
-    debugSerial.println(URI);
+#else
+    snprintf(URI, sizeof(URI), "/%s_config.json",QUOTE(DEVICE_NAME));
+#endif
+    debugSerial<<F("Config URI: http://")<<configServer<<URI;
 
 #if defined(__AVR__)
     FILE *configStream;
@@ -980,40 +937,40 @@ lan_status getConfig(int arg_cnt, char **args)
     if (configStream != NULL) {
         if (responseStatusCode == 200) {
 
-            debugSerial.println(F("got Config"));
+            debugSerial<<F("got Config"));
             char c;
             aJsonFileStream as = aJsonFileStream(configStream);
             noInterrupts();
             aJson.deleteItem(root);
             root = aJson.parse(&as);
             interrupts();
-        //    debugSerial.println(F("Parsed."));
+        //    debugSerial<<F("Parsed."));
             hclient.closeStream(configStream);  // this is very important -- be sure to close the STREAM
 
             if (!root) {
-                debugSerial.println(F("Config parsing failed"));
+                debugSerial<<F("Config parsing failed"));
                 nextLanCheckTime = millis() + 15000;
                 return READ_RE_CONFIG;//-11;
             } else {
             //    char *outstr = aJson.print(root);
-            //    debugSerial.println(outstr);
+            //    debugSerial<<outstr);
             //    free(outstr);
-            debugSerial.println(F("Applying."));
+            debugSerial<<F("Applying."));
                 applyConfig();
 
 
             }
 
         } else {
-            debugSerial.print(F("ERROR: Server returned "));
-            debugSerial.println(responseStatusCode);
+            debugSerial<<F("ERROR: Server returned "));
+            debugSerial<<responseStatusCode);
             nextLanCheckTime = millis() + 5000;
             return READ_RE_CONFIG;//-11;
         }
 
     } else {
-        debugSerial.println(F("failed to connect"));
-        debugSerial.println(F(" try again in 5 seconds"));
+        debugSerial<<F("failed to connect"));
+        debugSerial<<F(" try again in 5 seconds"));
         nextLanCheckTime = millis() + 5000;
         return READ_RE_CONFIG;//-11;
     }
@@ -1025,7 +982,7 @@ lan_status getConfig(int arg_cnt, char **args)
     //htclient.stop(); //_socket =MAX
     htclient.setHttpResponseTimeout(4000);
     wdt_res();
-    //debugSerial.println("making GET request");get
+    //debugSerial<<"making GET request");get
     htclient.beginRequest();
     htclient.get(URI);
     htclient.endRequest();
@@ -1036,36 +993,36 @@ lan_status getConfig(int arg_cnt, char **args)
     response = htclient.responseBody();
     htclient.stop();
     wdt_res();
-    debugSerial.print(F("HTTP Status code: "));
-    debugSerial.println(responseStatusCode);
-    //debugSerial.print("GET Response: ");
+    debugSerial<<F("HTTP Status code: ");
+    debugSerial<<responseStatusCode;
+    //debugSerial<<"GET Response: ");
 
     if (responseStatusCode == 200) {
         aJson.deleteItem(root);
         root = aJson.parse((char *) response.c_str());
 
         if (!root) {
-            debugSerial.println(F("Config parsing failed"));
+            debugSerial<<F("Config parsing failed");
             // nextLanCheckTime=millis()+15000;
             return READ_RE_CONFIG;//-11; //Load from NVRAM
         } else {
             /*
             char * outstr=aJson.print(root);
-            debugSerial.println(outstr);
+            debugSerial<<outstr);
             free (outstr);
              */
-            debugSerial.println(response);
+            debugSerial<<response;
             applyConfig();
 
 
         }
     } else {
-        debugSerial.println(F("Config retrieving failed"));
+        debugSerial<<F("Config retrieving failed");
         //nextLanCheckTime=millis()+15000;
         return READ_RE_CONFIG;//-11; //Load from NVRAM
     }
 #endif
-#if defined(ARDUINO_ARCH_ESP32) || defined(ESP8266)
+#if defined(ARDUINO_ARCH_ESP32) || defined(ARDUINO_ARCH_ESP8266)
     HTTPClient httpClient;
     String fullURI = "http://";
     fullURI+=configServer;
@@ -1073,31 +1030,29 @@ lan_status getConfig(int arg_cnt, char **args)
     httpClient.begin(fullURI);
     int httpResponseCode = httpClient.GET();
     if (httpResponseCode > 0) {
-        // HTTP header has been send and Server response header has been handled
         debugSerial.printf("[HTTP] GET... code: %d\n", httpResponseCode);
-        // file found at server
         if (httpResponseCode == HTTP_CODE_OK) {
             String response = httpClient.getString();
-            debugSerial.println(response);
+            debugSerial<<response;
             aJson.deleteItem(root);
             root = aJson.parse((char *) response.c_str());
             if (!root) {
-                debugSerial.println(F("Config parsing failed"));
-                return READ_RE_CONFIG;//-11; //Load from NVRAM
+                debugSerial<<F("Config parsing failed");
+                return READ_RE_CONFIG;
             } else {
-                debugSerial.println(F("Config OK, Applying"));
+                debugSerial<<F("Config OK, Applying");
                 applyConfig();
             }
         }
     } else {
         debugSerial.printf("[HTTP] GET... failed, error: %s\n", httpClient.errorToString(httpResponseCode).c_str());
         httpClient.end();
-        return READ_RE_CONFIG;//-11; //Load from NVRAM
+        return READ_RE_CONFIG;
     }
     httpClient.end();
 #endif
 
-    return IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER;//2;
+    return IP_READY_CONFIG_LOADED_CONNECTING_TO_BROKER;
 }
 
 void preTransmission() {
@@ -1126,7 +1081,7 @@ void setup_main() {
     sd_card_w5100_setup();
 #endif
     setupMacAddress();
-    loadConfigFromEEPROM(0, NULL);
+    loadConfigFromEEPROM();
 
 #ifdef _modbus
     #ifdef CONTROLLINO
@@ -1156,7 +1111,7 @@ void setup_main() {
     ArtnetSetup();
 #endif
 
-#if defined(ESP8266) and not defined(WIFI_MANAGER_DISABLE)
+#if defined(ARDUINO_ARCH_ESP8266) and not defined(WIFI_MANAGER_DISABLE)
     WiFiManager wifiManager;
 #if defined(ESP_WIFI_AP) and defined(ESP_WIFI_PWD)
     wifiManager.autoConnect(QUOTE(ESP_WIFI_AP), QUOTE(ESP_WIFI_PWD));
@@ -1170,79 +1125,74 @@ void setup_main() {
 }
 
 void printFirmwareVersionAndBuildOptions() {
-    debugSerial.print(F("\nLazyhome.ru LightHub controller "));
-    debugSerial.println(F(QUOTE(PIO_SRC_REV)));
-    debugSerial.print(F("C++ version:"));
-    debugSerial.println(F(QUOTE(__cplusplus)));
+    debugSerial<<F("\nLazyhome.ru LightHub controller ")<<F(QUOTE(PIO_SRC_REV))<<F(" C++ version:")<<F(QUOTE(__cplusplus));
 #ifdef CONTROLLINO
-    debugSerial.println(F("(+)CONTROLLINO"));
+    debugSerial<<F("\n(+)CONTROLLINO");
 #endif
 #ifdef WATCH_DOG_TICKER_DISABLE
-    debugSerial.println(F("(-)WATCHDOG"));
+    debugSerial<<F("\n(-)WATCHDOG");
 #else
-    debugSerial.println(F("(+)WATCHDOG"));
+    debugSerial<<F("\n(+)WATCHDOG");
 #endif
-    debugSerial.print(F("Config server:"));
-    debugSerial.println(F(CONFIG_SERVER));
-    debugSerial.print(F("Firmware MAC Address "));
-    debugSerial.println(F(QUOTE(CUSTOM_FIRMWARE_MAC))); //Q Macros didn't working with 6 args
+    debugSerial<<F("\nConfig server:")<<F(CONFIG_SERVER)<<F("\nFirmware MAC Address ")<<F(QUOTE(CUSTOM_FIRMWARE_MAC));
 #ifdef DISABLE_FREERAM_PRINT
-    debugSerial.println(F("(-)FreeRam printing"));
+    debugSerial<<F("\n(-)FreeRam printing");
 #else
-    debugSerial.println(F("(+)FreeRam printing"));
+    debugSerial<<F("\n(+)FreeRam printing");
 #endif
 
 #ifdef USE_1W_PIN
-    debugSerial.print(F("(-)DS2482-100 USE_1W_PIN="));
-    debugSerial.println(QUOTE(USE_1W_PIN));
+    debugSerial<<F("\n(-)DS2482-100 USE_1W_PIN=")<<QUOTE(USE_1W_PIN);
 #else
-    debugSerial.println(F("(+)DS2482-100"));
+    debugSerial<<F("\n(+)DS2482-100");
 #endif
 
 #ifdef Wiz5500
-    debugSerial.println(F("(+)WizNet5500"));
+    debugSerial<<F("\n(+)WizNet5500");
 #endif
 
 #ifdef DMX_DISABLE
-    debugSerial.println(F("(-)DMX"));
+    debugSerial<<F("\n(-)DMX");
 #else
-    debugSerial.println(F("(+)DMX"));
+    debugSerial<<F("\n(+)DMX");
 #endif
 
 #ifdef MODBUS_DISABLE
-    debugSerial.println(F("(-)MODBUS"));
+    debugSerial<<F("\n(-)MODBUS");
 #else
-    debugSerial.println(F("(+)MODBUS"));
+    debugSerial<<F("\n(+)MODBUS");
 #endif
 
 #ifdef OWIRE_DISABLE
-    debugSerial.println(F("(-)OWIRE"));
+    debugSerial<<F("\n(-)OWIRE");
 #else
-    debugSerial.println(F("(+)OWIRE"));
+    debugSerial<<F("\n(+)OWIRE");
 #endif
 #ifndef DHT_DISABLE
-    debugSerial.println(F("(+)DHT"));
+    debugSerial<<F("\n(+)DHT");
 #else
-    debugSerial.println(F("(-)DHT"));
+    debugSerial<<F("\n(-)DHT");
 #endif
 
 #ifdef SD_CARD_INSERTED
-    debugSerial.println(F("(+)SDCARD"));
+    debugSerial<<F("\n(+)SDCARD");
 #endif
 
 #ifdef RESET_PIN
-    debugSerial.print(F("(+)HARDRESET on pin="));
-    debugSerial.println(F(QUOTE(RESET_PIN)));
+    debugSerial<<F("\n(+)HARDRESET on pin=")<<F(QUOTE(RESET_PIN);
 #else
-    debugSerial.println("(-)HARDRESET, using soft");
+    debugSerial<<F("\n(-)HARDRESET, using soft");
 #endif
 
 #ifdef RESTART_LAN_ON_MQTT_ERRORS
-    debugSerial.println(F("(+)RESTART_LAN_ON_MQTT_ERRORS"));
+    debugSerial<<F("\n(+)RESTART_LAN_ON_MQTT_ERRORS");
 #else
-    debugSerial.println("(-)RESTART_LAN_ON_MQTT_ERRORS");
+    debugSerial<<F("\n(-)RESTART_LAN_ON_MQTT_ERRORS");
 #endif
 }
+void printFreeRam(){
+    debugSerial<<F("\nfree RAM: ")<<freeRam();
+}
 
 void setupMacAddress() {
 
@@ -1262,7 +1212,7 @@ void setupMacAddress() {
         if (mac[i] != 0 && mac[i] != 0xff) isMacValid = true;
     }
     if (!isMacValid) {
-        debugSerial.println(F("Invalid MAC: set firmware's MAC"));
+        debugSerial<<F("Invalid MAC: set firmware's MAC");
         memcpy(mac, firmwareMacAddress, 6);
     }
     printMACAddress();
@@ -1270,7 +1220,7 @@ void setupMacAddress() {
 
 void setupCmdArduino() {
     cmdInit(uint32_t(SERIAL_BAUD));
-    debugSerial.println(F(">>>"));
+    debugSerial<<(F(">>>"));
     cmdAdd("help", cmdFunctionHelp);
     cmdAdd("save", cmdFunctionSave);
     cmdAdd("load", cmdFunctionLoad);
@@ -1287,7 +1237,7 @@ void setupCmdArduino() {
 void loop_main() {
     wdt_res();
     cmdPoll();
-    if (lanLoop() > 1) {
+    if (lanLoop() > HAVE_IP_ADDRESS) {
         mqttClient.loop();
 #ifdef _artnet
         if (artnet) artnet->read();
@@ -1302,7 +1252,6 @@ void loop_main() {
     //    unsigned long lastpacket = DMXSerial.noDataSince();
     DMXCheck();
 #endif
-    // if (lastpacket && (lastpacket%10==0)) debugSerial.println(lastpacket);
 
     if (items) {
         #ifndef MODBUS_DISABLE
@@ -1320,8 +1269,8 @@ void loop_main() {
     dmxout.update();
 #endif
 
-#ifndef SYSLOG_DISABLE
-//        debugSerial.print(F("#"));
+#ifdef SYSLOG_ENABLE
+//        debugSerial<<F("#"));
 //        udpSyslog.log(LOG_INFO, "Ping syslog:");
 #endif
 
@@ -1333,10 +1282,7 @@ void owIdle(void) {
 #endif
 
     wdt_res();
-    return; //TODO: unreached code
-    debugSerial.print(F("o"));
-    if (lanLoop() == 1) mqttClient.loop();
-//if (owReady) owLoop();
+    return;
 
 #ifdef _dmxin
     DMXCheck();
@@ -1349,7 +1295,6 @@ void owIdle(void) {
 void ethernetIdle(void){
     wdt_res();
     inputLoop();
-//  debugSerial.print(".");
 };
 
 void modbusIdle(void) {
@@ -1434,8 +1379,7 @@ void thermoLoop(void) {
                 int curTemp = aJson.getArrayItem(thermoExtensionArray, IET_TEMP)->valueint;
 
                 if (!aJson.getArrayItem(thermoExtensionArray, IET_ATTEMPTS)->valueint) {
-                    debugSerial.print(thermoItem->name);
-                    debugSerial.println(F(" Expired"));
+                    debugSerial<<thermoItem->name<<F(" Expired");
 
                 } else {
                     if (!(--aJson.getArrayItem(thermoExtensionArray, IET_ATTEMPTS)->valueint))
@@ -1445,27 +1389,22 @@ void thermoLoop(void) {
                 if (curTemp > THERMO_OVERHEAT_CELSIUS) mqttClient.publish("/alarm/ovrht", thermoItem->name);
 
 
-                debugSerial.print(thermoItem->name);
-                debugSerial.print(F(" Set:"));
-                debugSerial.print(thermoSetting);
-                debugSerial.print(F(" Cur:"));
-                debugSerial.print(curTemp);
-                debugSerial.print(F(" cmd:"));
-                debugSerial.print(thermoStateCommand);
+                debugSerial << endl << thermoItem->name << F("Set:") << thermoSetting << F(" Cur:") << curTemp
+                            << F(" cmd:") << thermoStateCommand;
                 pinMode(thermoPin, OUTPUT);
                 if (thermoDisabledOrDisconnected(thermoExtensionArray, thermoStateCommand)) {
                     digitalWrite(thermoPin, LOW);
-                    debugSerial.println(F(" OFF"));
+                    debugSerial<<F(" OFF");
                 } else {
                     if (curTemp < thermoSetting - THERMO_GIST_CELSIUS) {
                         digitalWrite(thermoPin, HIGH);
-                        debugSerial.println(F(" ON"));
+                        debugSerial<<F(" ON");
                     } //too cold
                     else if (curTemp >= thermoSetting) {
                         digitalWrite(thermoPin, LOW);
-                        debugSerial.println(F(" OFF"));
+                        debugSerial<<F(" OFF");
                     } //Reached settings
-                    else debugSerial.println(F(" -target zone-")); // Nothing to do
+                    else debugSerial<<F(" -target zone-"); // Nothing to do
                 }
                 thermostatCheckPrinted = true;
             }
@@ -1475,9 +1414,7 @@ void thermoLoop(void) {
     nextThermostatCheck = millis() + THERMOSTAT_CHECK_PERIOD;
 
 #ifndef DISABLE_FREERAM_PRINT
-    (thermostatCheckPrinted) ? debugSerial.print(F("\nfree:")) : debugSerial.print(F(" "));
-    debugSerial.print(freeRam());
-    debugSerial.print(" ");
+    (thermostatCheckPrinted) ? debugSerial<<F("\nfree:")<<freeRam()<<" " : debugSerial<<F(" ")<<freeRam()<<F(" ");
 #endif
 }
 
@@ -1503,8 +1440,6 @@ short thermoSetCurTemp(char *name, short t) {
                 if (att->valueint == 0) mqttClient.publish("/alarmoff/snsr", thermoItem->name);
                 att->valueint = (int) T_ATTEMPTS;
             }
-
         }
     }
-
 }
diff --git a/lighthub/main.h b/lighthub/main.h
index 5e4f782..e56b11d 100644
--- a/lighthub/main.h
+++ b/lighthub/main.h
@@ -1,9 +1,6 @@
+#pragma once
 #include "options.h"
 
-#ifndef LIGHTHUB_MAIN_H
-#define LIGHTHUB_MAIN_H
-
-
 #if defined(__SAM3X8E__)
 #define wdt_res() watchdogReset()
 #define wdt_en()
@@ -172,7 +169,7 @@ void applyConfig();
 
 void cmdFunctionLoad(int arg_cnt, char **args);
 
-int loadConfigFromEEPROM(int arg_cnt, char **args);
+int loadConfigFromEEPROM();
 
 void cmdFunctionReq(int arg_cnt, char **args);
 
@@ -196,7 +193,7 @@ void saveFlash(short n, IPAddress& ip);
 
 int ipLoadFromFlash(short n, IPAddress &ip);
 
-lan_status getConfig(int arg_cnt=0, char **args=NULL);
+lan_status loadConfigFromHttp(int arg_cnt = 0, char **args = NULL);
 
 void preTransmission();
 
@@ -238,4 +235,7 @@ void onInitialStateInitLAN();
 
 void ip_ready_config_loaded_connecting_to_broker();
 
-#endif //LIGHTHUB_MAIN_H
+void printCurentLanConfig();
+
+void printFreeRam();
+
diff --git a/lighthub/options.h b/lighthub/options.h
index 00a9fcc..b991274 100644
--- a/lighthub/options.h
+++ b/lighthub/options.h
@@ -112,9 +112,11 @@
 #define dmxin  DmxDue1
 #endif
 
-#if defined(ESP8266)
+#if defined(ARDUINO_ARCH_ESP8266)
 #undef _dmxin
 #undef _modbus
+#define WITH_STREAMING_LIB
+
 #ifndef DMX_DISABLE
 #define _espdmx
 #endif
diff --git a/lighthub/owTerm.cpp b/lighthub/owTerm.cpp
index adedd89..e2d44d6 100644
--- a/lighthub/owTerm.cpp
+++ b/lighthub/owTerm.cpp
@@ -47,7 +47,7 @@ int owUpdate() {
     short sr;
 
     //net.setStrongPullup();
-    Serial.println(F("Searching"));
+    debugSerial.println(F("Searching"));
     if (net) net->reset_search();
     for (short i = 0; i < t_count; i++) wstat[i] &= ~SW_FIND; //absent
 
@@ -58,18 +58,18 @@ int owUpdate() {
                 if (!memcmp(term[i], term[t_count], 8)) {
                     ifind = i;
                     wstat[i] |= SW_FIND;
-                    Serial.print(F(" Node:"));
-                    PrintBytes(term[t_count], 8);
-                    Serial.println(F(" alive"));
+                    debugSerial.print(F(" Node:"));
+                    PrintBytes(term[t_count], 8,0);
+                    debugSerial.println(F(" alive"));
                     break;
                 }; //alive
             if (ifind < 0 && sensors) {
                 wstat[t_count] = SW_FIND; //Newly detected
-                Serial.print(F("dev#"));
-                Serial.print(t_count);
-                Serial.print(F(" Addr:"));
-                PrintBytes(term[t_count], 8);
-                Serial.println();
+                debugSerial.print(F("dev#"));
+                debugSerial.print(t_count);
+                debugSerial.print(F(" Addr:"));
+                PrintBytes(term[t_count], 8,0);
+                debugSerial.println();
                 if (term[t_count][0] == 0x28) {
                     sensors->setResolution(term[t_count], TEMPERATURE_PRECISION);
                     net->setStrongPullup();
@@ -80,8 +80,8 @@ int owUpdate() {
         }//if
     } //while
 
-    Serial.print(F("1-wire count: "));
-    Serial.println(t_count);
+    debugSerial.print(F("1-wire count: "));
+    debugSerial.println(t_count);
 #endif
 }
 
@@ -91,12 +91,12 @@ int owSetup(owChangedType owCh) {
     //// todo - move memory allocation to here
     if (net) return true;    // Already initialized
 #ifdef DS2482_100_I2C_TO_1W_BRIDGE
-    Serial.println(F("DS2482_100_I2C_TO_1W_BRIDGE init"));
+    debugSerial.println(F("DS2482_100_I2C_TO_1W_BRIDGE init"));
     net = new OneWire;
 #else
-    Serial.print(F("One wire setup on PIN:"));
-    Serial.println(QUOTE(USE_1W_PIN));
-net = new OneWire (USE_1W_PIN);
+    debugSerial.print(F("One wire setup on PIN:"));
+    debugSerial.println(QUOTE(USE_1W_PIN));
+    net = new OneWire (USE_1W_PIN);
 #endif
 
 
@@ -112,29 +112,29 @@ net = new OneWire (USE_1W_PIN);
 #ifdef DS2482_100_I2C_TO_1W_BRIDGE
     Wire.begin();
     if (net->checkPresence()) {
-        Serial.println(F("DS2482-100 present"));
+        debugSerial.println(F("DS2482-100 present"));
         net->deviceReset();
 #ifdef APU_OFF
-        Serial.println(F("APU off"));
+        debugSerial.println(F("APU off"));
 #else
         net->setActivePullup();
 #endif
 
-        Serial.println(F("\tChecking for 1-Wire devices..."));
+        debugSerial.println(F("\tChecking for 1-Wire devices..."));
         if (net->wireReset())
-            Serial.println(F("\tReset done"));
+            debugSerial.println(F("\tReset done"));
 
         sensors->begin();
         owChanged = owCh;
         //owUpdate();
-        //Serial.println(F("\t1-w Updated"));
+        //debugSerial.println(F("\t1-w Updated"));
         sensors->setWaitForConversion(false);
 
 
         return true;
     }
 #endif
-    Serial.println(F("\tDS2482 error"));
+    debugSerial.println(F("\tDS2482 error"));
     return false;
     // IC Default 9 bit. If you have troubles consider upping it 12. Ups the delay giving the IC more time to process the temperature measurement
 
@@ -158,7 +158,7 @@ int sensors_loop(void) {
 
         case 0x28: // Thermomerer
             t = sensors->getTempC(term[si]);//*10.0;
-            //Serial.println("o");
+            //debugSerial.println("o");
             if (owChanged) owChanged(si, term[si], t);
             sensors->requestTemperaturesByAddress(term[si]);
             si++;
@@ -192,11 +192,11 @@ void owAdd(DeviceAddress addr) {
     memcpy(term[t_count], addr, 8);
     //term[t_count]=addr;
 
-    Serial.print(F("dev#"));
-    Serial.print(t_count);
-    Serial.print(F(" Addr:"));
-    PrintBytes(term[t_count], 8);
-    Serial.println();
+    debugSerial.print(F("dev#"));
+    debugSerial.print(t_count);
+    debugSerial.print(F(" Addr:"));
+    PrintBytes(term[t_count], 8,0);
+    debugSerial.println();
     if (term[t_count][0] == 0x28) {
         sensors->setResolution(term[t_count], TEMPERATURE_PRECISION);
         net->setStrongPullup();
diff --git a/lighthub/utils.cpp b/lighthub/utils.cpp
index ac5357e..d959d67 100644
--- a/lighthub/utils.cpp
+++ b/lighthub/utils.cpp
@@ -19,6 +19,7 @@ e-mail    anklimov@gmail.com
 */
 
 #include "utils.h"
+#include "options.h"
 
 #if defined(__SAM3X8E__) || defined(ARDUINO_ARCH_STM32F1)
 #include <malloc.h>
@@ -134,5 +135,61 @@ void parseBytes(const char *str, char separator, byte *bytes, int maxBytes, int
         str++;                                // Point to next character after separator
     }
 }
+
+#define ARDBUFFER 16 //Buffer for storing intermediate strings. Performance may vary depending on size.
+
+int log(const char *str, ...)//TODO: __FlashStringHelper str support
+{
+    int i, count=0, j=0, flag=0;
+    char temp[ARDBUFFER+1];
+    for(i=0; str[i]!='\0';i++)  if(str[i]=='%')  count++; //Evaluate number of arguments required to be printed
+
+    va_list argv;
+    va_start(argv, count);
+    for(i=0,j=0; str[i]!='\0';i++) //Iterate over formatting string
+    {
+        if(str[i]=='%')
+        {
+            //Clear buffer
+            temp[j] = '\0';
+            Serial.print(temp);
+            j=0;
+            temp[0] = '\0';
+
+            //Process argument
+            switch(str[++i])
+            {
+                case 'd': debugSerial.print(va_arg(argv, int));
+                    break;
+                case 'l': debugSerial.print(va_arg(argv, long));
+                    break;
+                case 'f': debugSerial.print(va_arg(argv, double));
+                    break;
+                case 'c': debugSerial.print((char)va_arg(argv, int));
+                    break;
+                case 's': debugSerial.print(va_arg(argv, char *));
+                    break;
+                default:  ;
+            };
+        }
+        else
+        {
+            //Add to buffer
+            temp[j] = str[i];
+            j = (j+1)%ARDBUFFER;
+            if(j==0)  //If buffer is full, empty buffer.
+            {
+                temp[ARDBUFFER] = '\0';
+                debugSerial.print(temp);
+                temp[0]='\0';
+            }
+        }
+    };
+
+    Serial.println(); //Print trailing newline
+    return count + 1; //Return number of arguments detected
+}
+
+
 #pragma message(VAR_NAME_VALUE(debugSerial))
 #pragma message(VAR_NAME_VALUE(SERIAL_BAUD))
\ No newline at end of file
diff --git a/lighthub/utils.h b/lighthub/utils.h
index 1725b59..4a1945a 100644
--- a/lighthub/utils.h
+++ b/lighthub/utils.h
@@ -25,10 +25,11 @@ e-mail    anklimov@gmail.com
 
 #include <Arduino.h>
 
-void PrintBytes(uint8_t* addr, uint8_t count, bool newline=0); 
+void PrintBytes(uint8_t* addr, uint8_t count, bool newline);
 void SetBytes(uint8_t* addr, uint8_t count, char * out);
 void SetAddr(char * out,  uint8_t* addr);
 uint8_t HEX2DEC(char i);
 int getInt(char ** chan);
 unsigned long freeRam ();
-void parseBytes(const char* str, char separator, byte* bytes, int maxBytes, int base);
\ No newline at end of file
+void parseBytes(const char* str, char separator, byte* bytes, int maxBytes, int base);
+int log(const char *str, ...);
\ No newline at end of file
diff --git a/platformio.ini b/platformio.ini
index f87439d..01596bd 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,10 +10,10 @@
 [platformio]
 src_dir = lighthub
 env_default =
-    megaatmega2560
+;    megaatmega2560
 ;    megaatmega2560-net
 ;    due
-;    esp8266
+    esp8266
 ;    esp32
 ;    megaatmega2560-5500
 ;     due-5500
@@ -43,6 +43,8 @@ lib_deps =
     Adafruit Unified Sensor
     DHT sensor library for ESPx
     DHT sensor library
+    Streaming
+    https://github.com/Chris--A/PrintEx.git
 
 [env:stm32]
 platform = ststm32
@@ -119,6 +121,7 @@ lib_deps =
     Adafruit Unified Sensor
     DHT sensor library
     https://github.com/arcao/Syslog.git
+    Streaming
 
 [env:esp8266]
 platform = espressif8266
@@ -142,6 +145,8 @@ lib_deps =
     DHT sensor library
     WifiManager
     https://github.com/arcao/Syslog.git
+    https://github.com/livello/PrintEx.git#is-select-redecl
+    Streaming
 
 [env:megaatmega2560-net]
 platform = atmelavr
@@ -174,6 +179,7 @@ framework = arduino
 board = due
 ;lib_ldf_mode = chain+
 build_flags = -D Wiz5500 -D ARTNET_ENABLE
+build_flags = !sh build_flags_due-5500.sh
 lib_deps =
     https://github.com/sebnil/DueFlashStorage
     https://github.com/anklimov/Arduino-Temperature-Control-Library.git
@@ -192,6 +198,9 @@ lib_deps =
     Adafruit Unified Sensor
     DHT sensor library
     https://github.com/arcao/Syslog.git
+;    Streaming
+;    PrintEx
+    https://github.com/livello/PrintEx.git#is-select-redecl
 
 [env:controllino]
 platform = atmelavr