diff --git a/build_flags_mega2560-net.sh b/build_flags_mega2560-net.sh
new file mode 100644
index 0000000..49ee95a
--- /dev/null
+++ b/build_flags_mega2560-net.sh
@@ -0,0 +1,30 @@
+#! /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="$FLAGS -DCUSTOM_FIRMWARE_MAC=de:ad:be:ef:fe:ff"
+# export FLAGS="$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 $FLAGS
diff --git a/build_flags_mega2560.sh b/build_flags_mega2560.sh
new file mode 100644
index 0000000..f264fbb
--- /dev/null
+++ b/build_flags_mega2560.sh
@@ -0,0 +1,30 @@
+#! /bin/bash
+# usage:
+# first make your own copy of template
+# cp build_flags_template.sh build_flags_ENVNAME.sh
+# then edit, change or comment something
+ export FLAGS="-DMY_CONFIG_SERVER=lazyhome.ru"
+ #export FLAGS="$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:ff"
+# 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/lighthub/item.cpp b/lighthub/item.cpp
index 3abbd2a..76aab39 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -55,6 +55,8 @@ int txt2cmd(char *payload) {
     else if (strcmp(payload, "REST") == 0) cmd = CMD_RESTORE;
     else if (strcmp(payload, "TOGGLE") == 0) cmd = CMD_TOGGLE;
     else if (strcmp(payload, "HALT") == 0) cmd = CMD_HALT;
+    else if (strcmp(payload, "XON") == 0) cmd = CMD_XON;
+    else if (strcmp(payload, "XOFF") == 0) cmd = CMD_XOFF;
     else if (*payload == '-' || (*payload >= '0' && *payload <= '9')) cmd = 0;
     else if (*payload == '{') cmd = -2;
     else if (*payload == '#') cmd = -3;
@@ -277,6 +279,17 @@ int Item::Ctrl(short cmd, short n, int *Parameters, boolean send) {
                     default:
                         return -3;
                 }//switch old cmd
+          case CMD_XOFF:
+          if (itemType != CH_GROUP) //individual threating of channels. Ignore restore command for groups
+              switch (t = getCmd()) {
+                  case CMD_XON: //previous command was CMD_XON ?
+                          Serial.print(F("Turned off from:"));
+                          Serial.println(t);
+                          cmd = CMD_OFF;    //turning Off
+                          break;
+                  default:
+                      return -3;
+              }//switch old cmd
     } //switch cmd
 
     switch (cmd) {
@@ -290,10 +303,20 @@ int Item::Ctrl(short cmd, short n, int *Parameters, boolean send) {
                     if (!Par[1]) itemType = CH_WHITE;
                 case CH_GROUP: //Save for groups as well
                 case CH_RGB:
+                if (n == 3) { // Full triplet passed
                     st.h = Par[0];
                     st.s = Par[1];
                     st.v = Par[2];
                     setVal(st.aslong);
+                  } else  // Just volume passed
+                  {
+                    st.aslong = getVal(); // restore Colour
+                    st.v = Par[0]; // override volume
+                    setVal(st.aslong); // Save back
+                    Par[0] = st.h;
+                    Par[1] = st.s;
+                    Par[2] = st.v;
+                  }
                       if (send) SendStatus(0,3,Par,true); // Send back triplet ?
                     break;
 
@@ -314,6 +337,7 @@ int Item::Ctrl(short cmd, short n, int *Parameters, boolean send) {
             break;
 
         case CMD_ON:
+        case CMD_XON:
         if (itemType==CH_RGBW && getCmd() == CMD_ON && getEnableCMD(500)) {
                   Serial.println(F("Force White"));
                   itemType = CH_WHITE;
@@ -547,7 +571,7 @@ int Item::Ctrl(short cmd, short n, int *Parameters, boolean send) {
         case CH_RELAY: {
             int k;
             pinMode(iaddr, OUTPUT);
-            digitalWrite(iaddr, k = ((cmd == CMD_ON) ? HIGH : LOW));
+            digitalWrite(iaddr, k = ((cmd == CMD_ON || cmd == CMD_XON) ? HIGH : LOW));
             Serial.print(F("Pin:"));
             Serial.print(iaddr);
             Serial.print(F("="));
@@ -629,6 +653,7 @@ int Item::isActive() {
 // Simple check last command first
         switch (cmd) {
             case CMD_ON:
+            case CMD_XON:
                 //Serial.println(" active");
                 return 1;
             case CMD_OFF:
@@ -1146,6 +1171,7 @@ int Item::SendStatus(short cmd, short n, int *Par, boolean deffered) {
 
         switch (cmd) {
             case CMD_ON:
+            case CMD_XON:
                 strcpy(valstr, "ON");
                 break;
             case CMD_OFF:
diff --git a/lighthub/item.h b/lighthub/item.h
index bb777dc..8bf2fb8 100644
--- a/lighthub/item.h
+++ b/lighthub/item.h
@@ -33,9 +33,11 @@ e-mail    anklimov@gmail.com
 
 #define CMD_ON  1
 #define CMD_OFF 2
-#define CMD_HALT 5
-#define CMD_RESTORE 3
+#define CMD_RESTORE 3 //on only if was turned off by CMD_HALT 
 #define CMD_TOGGLE 4
+#define CMD_HALT 5    //just Off
+#define CMD_XON 6     //just on
+#define CMD_XOFF 7    //off only if was previously turned on by CMD_XON
 #define CMD_CURTEMP 127
 #define CMD_SET 9
 #define CMD_RETRY 64
diff --git a/lighthub/main.h b/lighthub/main.h
index dc16718..5e4f782 100644
--- a/lighthub/main.h
+++ b/lighthub/main.h
@@ -37,15 +37,23 @@
 //#define wdt_en()
 //#define wdt_dis()
 //#endif
-
-#if defined(WATCH_DOG_TICKER_DISABLE) && defined(__AVR__)
+#if defined(__AVR__)
+#if defined(WATCH_DOG_TICKER_DISABLE)
 #define wdt_en() wdt_disable()
 #define wdt_dis() wdt_disable()
 #define wdt_res() wdt_disable()
+#else
+#define wdt_en()   wdt_enable(WDTO_8S)
+#define wdt_dis()  wdt_disable()
+#define wdt_res()  wdt_reset()
+#endif
+#endif
+
+#ifndef OWIRE_DISABLE
+#include "DallasTemperature.h"
 #endif
 
 #include "Arduino.h"
-#include "DallasTemperature.h"
 #include <PubSubClient.h>
 #include <SPI.h>
 #include "utils.h"
@@ -56,18 +64,18 @@
 #include "stdarg.h"
 #include "item.h"
 #include "inputs.h"
+
 #ifndef ARDUINO_ARCH_STM32F1
 #include "FastLED.h"
 #endif
+
 #include "Dns.h"
 //#include "hsv2rgb.h"
 
 #if defined(__SAM3X8E__)
-
 #include <DueFlashStorage.h>
 #include <watchdog.h>
 #include <ArduinoHttpClient.h>
-
 #endif
 
 #if defined(__AVR__)
@@ -150,7 +158,9 @@ void restoreState();
 
 lan_status lanLoop();
 
+#ifndef OWIRE_DISABLE
 void Changed(int i, DeviceAddress addr, int val);
+#endif
 
 void modbusIdle(void);
 
diff --git a/platformio.ini b/platformio.ini
index 4f3fe38..8ba749d 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,13 +10,13 @@
 [platformio]
 src_dir = lighthub
 env_default =
-;    megaatmega2560
+    megaatmega2560
 ;    megaatmega2560-net
 ;    due
 ;    esp8266
 ;    esp32
 ;    megaatmega2560-5500
-     due-5500
+;     due-5500
 ;    controllino
 ;    stm32
 
@@ -112,7 +112,6 @@ lib_deps =
     https://github.com/anklimov/ModbusMaster
     https://github.com/anklimov/DMXSerial
     https://github.com/anklimov/Ethernet
-    https://github.com/anklimov/Ethernet2
     https://github.com/PaulStoffregen/SPI.git
     https://github.com/knolleary/pubsubclient.git
     https://github.com/anklimov/Artnet.git
@@ -120,6 +119,7 @@ lib_deps =
     EEPROM
     Adafruit Unified Sensor
     DHT sensor library
+    https://github.com/arcao/Syslog.git
 
 [env:esp8266]
 platform = espressif8266
@@ -168,6 +168,7 @@ lib_deps =
     Adafruit Unified Sensor
     DHT sensor library
 
+
 [env:due-5500]
 platform = atmelsam
 framework = arduino
@@ -210,7 +211,6 @@ lib_deps =
     https://github.com/anklimov/ModbusMaster
     https://github.com/anklimov/DMXSerial
     https://github.com/anklimov/Ethernet
-    https://github.com/anklimov/Ethernet2
     https://github.com/PaulStoffregen/SPI.git
     https://github.com/knolleary/pubsubclient.git
     https://github.com/anklimov/Artnet.git