diff --git a/build-flags/build_flags_esp32-wifi b/build-flags/build_flags_esp32-wifi
index bf5603d..103fbcf 100644
--- a/build-flags/build_flags_esp32-wifi
+++ b/build-flags/build_flags_esp32-wifi
@@ -9,8 +9,9 @@
 -DSYSLOG_ENABLE
 # - udp errors
 -DOTA
-#-DARDUINO_OTA_MDNS_DISABLE
-#-DMDNS_ENABLE - ArduinoMDNS didnt working
+-DARDUINO_OTA_MDNS_DISABLE
+#-DMDNS_ENABLE 
+#- ArduinoMDNS didnt working
 
 -DMCP23017
 -DMODBUS_TX_PIN=13
@@ -42,4 +43,6 @@
 #-DAUTOCONNECT_RECONNECT_WAITTIME=60
 
 -DFS_STORAGE
--DFS_PREPARE
\ No newline at end of file
+-DFS_PREPARE
+
+-D CORS=\"http://lazyhome.ru\"
diff --git a/lighthub/config.cpp b/lighthub/config.cpp
index a18adf1..a6645a4 100644
--- a/lighthub/config.cpp
+++ b/lighthub/config.cpp
@@ -1,14 +1,24 @@
 #include "config.h"
 
+int systemConfig::openStream(char mode) 
+      {
+            #if defined(FS_STORAGE)
+            stream->open("/config.bin",mode);
+            #else
+            stream->open(FN_CONFIG_BIN,mode);
+            #endif
+            stream->setSize(SYSCONF_SIZE);
+        };
 
 bool             systemConfig::isValidSysConf()
 {    
      if (!stream) return false; 
-     stream->open('r');
+     openStream('r');
      stream->seek(offsetof(systemConfigData,signature));
      for (int i=0;i<sizeof(systemConfigData::signature);i++)
         if (stream->read()!=EEPROM_signature[i])
                       {
+                       stream->close();  
                        return false;
                        } 
     return true;                   
@@ -18,7 +28,7 @@ bool             systemConfig::isValidSysConf()
   bool             systemConfig::getMAC()
  { 
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,mac));
 
     bool isMacValid = false; 
@@ -26,26 +36,32 @@ bool             systemConfig::isValidSysConf()
         mac[i] = stream->read();
         if (mac[i] != 0 && mac[i] != 0xff) isMacValid = true;
     }
+   stream->close();  
    return isMacValid;
  }
  
   bool             systemConfig::setMAC(macAddress& _mac)
  {
    if (!stream || !isValidSysConf()) return false;    
-   stream->open('w');
+   openStream('a');
    stream->seek(offsetof(systemConfigData,mac));
    stream->write ((const uint8_t *)&_mac,sizeof(_mac));
    memcpy(mac, _mac, sizeof(mac));
-   stream->flush();
+   stream->close();
   return true;
  }
 
   char *             systemConfig::getMQTTpwd(char * buffer, uint16_t bufLen)
  {
-    if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    if (!stream || !isValidSysConf()) return NULL;
+    openStream('r');
     stream->seek(offsetof(systemConfigData,MQTTpwd));   
-     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
+    Serial.println("valid");
+    Serial.println(offsetof(systemConfigData,MQTTpwd));
+    Serial.println(bytes);
+    Serial.write(buffer,bytes);
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -57,11 +73,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setMQTTpwd(char * pwd)
  {
     if (!stream || !isValidSysConf() || (strlen(pwd)>=sizeof(systemConfigData::MQTTpwd))) return false;
-    stream->open('w'); 
+    openStream('r'); 
     stream->seek(offsetof(systemConfigData,MQTTpwd));   
     stream->print(pwd); 
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
 
@@ -69,9 +85,10 @@ bool             systemConfig::isValidSysConf()
   char *             systemConfig::getOTApwd(char * buffer, uint16_t bufLen)
  {
     if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,OTApwd));   
     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -83,11 +100,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setOTApwd(char * pwd)
  {
      if (!stream || !isValidSysConf() || (strlen(pwd)>=sizeof(systemConfigData::OTApwd))) return false; 
-    stream->open('w'); 
+    openStream('r'); 
     stream->seek(offsetof(systemConfigData,OTApwd));   
     stream->print(pwd);   
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
  
@@ -95,9 +112,10 @@ bool             systemConfig::isValidSysConf()
   char *          systemConfig::getServer(char * buffer, uint16_t bufLen)
  {
   if (!stream || !isValidSysConf()) return NULL; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,configURL));   
     short bytes=stream->readBytesUntil(0,buffer,bufLen-1);
+    stream->close(); 
     if (bytes) 
             {
             buffer[bytes]=0;  
@@ -109,11 +127,11 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setServer(char* url)
  {
   if (!stream || !isValidSysConf() || (strlen(url)>=sizeof(systemConfigData::configURL))) return false; 
-    stream->open('w');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,configURL));   
     stream->print(url);   
     int bytes = stream->write((uint8_t)'\0');
-    stream->flush();  
+    stream->close();  
     return bytes;
  }
   
@@ -122,10 +140,11 @@ bool             systemConfig::isValidSysConf()
  {
     uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,ip));   
     stream->readBytes((uint8_t *) &addr,4);
     ip=addr;
+    stream->close(); 
     return (ip[0] && ((ip[0] != 0xff) || (ip[1] != 0xff) || (ip[2] != 0xff) || (ip[3] != 0xff)));
  }
  
@@ -133,30 +152,33 @@ bool             systemConfig::isValidSysConf()
  {
      uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,mask));   
     stream->readBytes((uint8_t *) &addr,4);
     mask=addr;
+    stream->close(); 
     return (mask[0] && ((mask[0] != 0xff) || (mask[1] != 0xff) || (mask[2] != 0xff) || (mask[3] != 0xff)));
  }
  
  bool             systemConfig::getDNS(IPAddress& dns)
  {   uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,dns));   
     stream->readBytes((uint8_t *) &addr,4);
     dns = addr;
+    stream->close(); 
     return (dns[0] && ((dns[0] != 0xff) || (dns[1] != 0xff) || (dns[2] != 0xff) || (dns[3] != 0xff)));
  }
  
  bool             systemConfig::getGW(IPAddress& gw)
  {   uint32_t addr;
     if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,gw));   
     stream->readBytes((uint8_t *) &addr,4);
     gw=addr;
+    stream->close(); 
     return (gw[0] && ((gw[0] != 0xff) || (gw[1] != 0xff) || (gw[2] != 0xff) || (gw[3] != 0xff)));  
 }
  
@@ -164,30 +186,30 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setIP(IPAddress& ip)
  {  uint32_t addr=ip;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('r');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,ip));
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;      
  }
  
  bool             systemConfig::setMask(IPAddress& mask)
  {  uint32_t addr = mask;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,mask));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;    
  }
  
  bool             systemConfig::setDNS(IPAddress& dns)
  {  uint32_t addr = dns;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,dns));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;   
 
  }
@@ -195,10 +217,10 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::setGW(IPAddress& gw)
  { uint32_t addr = gw;
   if (!stream || !isValidSysConf()) return false; 
-    stream->open('w');
+    openStream('r');
     stream->seek(offsetof(systemConfigData,gw));   
     int bytes = stream->write((uint8_t *) &addr, 4);
-    stream->flush();  
+    stream->close();  
     return bytes;   
  }
  
@@ -206,7 +228,7 @@ bool             systemConfig::isValidSysConf()
  bool             systemConfig::clear()
  {
    if (!stream) return false; 
-    stream->open('w');
+    openStream('w');
     stream->seek(0);
      for (unsigned int i = 0; i < stream->getSize(); i++) {
         stream->write((uint8_t)'\0');
@@ -214,7 +236,7 @@ bool             systemConfig::isValidSysConf()
      stream->seek(offsetof(systemConfigData,signature));
      for (unsigned int i=0;i<sizeof(systemConfigData::signature);i++)
         if (stream->write(EEPROM_signature[i]));
-    stream->flush();
+    stream->close();
     return true;
  }
  
diff --git a/lighthub/config.h b/lighthub/config.h
index a861ad9..e80997b 100644
--- a/lighthub/config.h
+++ b/lighthub/config.h
@@ -6,57 +6,14 @@
 #include <Arduino.h>
 #include "flashstream.h"
 #include <IPAddress.h>
-
-#define MAXFLASHSTR 32
-#define PWDFLASHSTR 16
-#define EEPROM_SIGNATURE "LHCF"
-#define EEPROM_SIGNATURE_LENGTH 4
-const char EEPROM_signature[] = EEPROM_SIGNATURE;
-
-#define SYSCONF_OFFSET 0
-
-#define EEPROM_offset_NotAlligned SYSCONF_OFFSET+sizeof(systemConfigData)
-#define EEPROM_offsetJSON EEPROM_offset_NotAlligned + (4 -(EEPROM_offset_NotAlligned & 3))
-//#define EEPROM_offsetJSON IFLASH_PAGE_SIZE
-#define EEPROM_FIX_PART_LEN EEPROM_offsetJSON-SYSCONF_OFFSET
-
- typedef char flashstr[MAXFLASHSTR];
- typedef char flashpwd[PWDFLASHSTR];
- typedef uint8_t macAddress[6];
-
- #pragma pack(push, 1)
- typedef struct
-      { 
-        char    signature[4];  
-        macAddress  mac;  //6 bytes
-        union {
-                uint16_t configFlags;
-                struct
-                      { 
-                        uint8_t  serialDebugLevel:4; 
-                        uint8_t  syslogDebugLevel:4; 
-                        uint8_t  notGetConfigFromHTTP:1;
-                        uint8_t  saveToFlash:1;
-                      };
-              };  
-        uint32_t ip;
-        uint32_t dns;
-        uint32_t gw;
-        uint32_t mask;
-
-        flashstr configURL;
-        flashpwd MQTTpwd;
-        flashpwd OTApwd;
-
-        uint16_t sysConfigHash;
-        uint16_t JSONHash;
-            
-      } systemConfigData;
- #pragma (pop)     
+#include "systemconfigdata.h"
+    
 
 class systemConfig {
  private:
  flashStream * stream;
+ int openStream(char mode = '\0'); 
+  
  public:  
  macAddress mac;
  systemConfig() {stream=NULL;};
diff --git a/lighthub/flashstream.cpp b/lighthub/flashstream.cpp
index 9c96f7d..4952066 100644
--- a/lighthub/flashstream.cpp
+++ b/lighthub/flashstream.cpp
@@ -1,4 +1,39 @@
-#include <flashstream.h>
+#include "flashstream.h"
+#include "systemconfigdata.h"
+
+#include <main.h>
+#include <WiFiOTA.h>
+
+
+
+#if defined(ARDUINO_ARCH_AVR) 
+#include <EEPROM.h>
+#endif
+
+#if defined(ESP32) && !defined(FS_STORAGE)
+#include <EEPROM.h>
+#endif
+
+#if defined(ARDUINO_ARCH_ESP8266) 
+#include <ESP_EEPROM.h>
+#endif
+
+
+#if defined(__SAM3X8E__)
+#include <DueFlashStorage.h>
+extern DueFlashStorage EEPROM;
+#endif
+
+#ifdef NRF5
+#include <NRFFlashStorage.h>   //STUB
+extern NRFFlashStorage EEPROM;
+#endif
+
+#ifdef ARDUINO_ARCH_STM32
+#include <NRFFlashStorage.h>   //STUB
+extern NRFFlashStorage EEPROM;
+#endif
+
 
 #if defined(__SAM3X8E__)
 DueFlashStorage EEPROM;
@@ -10,4 +45,185 @@ NRFFlashStorage EEPROM;
 
 #ifdef ARDUINO_ARCH_STM32
 NRFFlashStorage EEPROM;
+#endif
+
+#if defined(FS_STORAGE)
+
+
+ int flashStream::open(String _filename, char mode) 
+   {
+                  char modestr[4];
+                  modestr[0]=mode; modestr[1]='b'; modestr[2]='+'; modestr[3]='\0';
+                  if (fs) fs.close();
+                  filename=_filename;
+
+                  if (fs =  SPIFFS.open(_filename,modestr))
+                     {
+                        openedMode=mode;
+
+                        if (_filename.endsWith(".json")) {contentType=HTTP_TEXT_JSON;textMode=true;}
+                           else if (_filename.endsWith(".bin")) {contentType=HTTP_OCTET_STREAM;textMode=false;}
+                                else if (_filename.endsWith(".txt")) {contentType=HTTP_TEXT_PLAIN;textMode=true;}
+                                     else if (_filename.endsWith(".html")) {contentType=HTTP_TEXT_HTML;textMode=true;} 
+                                          else if (_filename.endsWith(".gif")) {contentType=HTTP_IMAGE_GIF;textMode=false;}
+                                               else if (_filename.endsWith(".jpg")) {contentType=HTTP_IMAGE_JPEG;textMode=false;}
+
+
+                        debugSerial<<(F("Opened ("))<<modestr<<(F(")"))<<filename<<endl;
+                        return fs;
+                     }
+                  else 
+                     {
+                         openedMode='\0';  
+                         debugSerial<<("Open error (")<<modestr<<(")")<<filename<<endl; 
+                         return 0;
+                     }   
+   }; 
+               
+    int flashStream::available() 
+                { 
+                    if (!fs) return 0;
+                    if (textMode && peek()==EOFchar) return 0;  
+                    return fs.available();  
+                };
+                
+    int flashStream::read() {
+       return fs.read();
+       };
+
+    int flashStream::peek() {
+       return fs.peek();
+       };
+
+    unsigned int flashStream::seek  (unsigned int _pos)  
+    {   
+        debugSerial<<(F("Seek:"))<<_pos;
+        if (_pos>streamSize) _pos=streamSize;
+        unsigned int res = fs.seek(_pos,SeekSet);
+        debugSerial<<(F(" Res:"))<<res<<endl;
+        return res;
+      };         
+    void flashStream::close()  {fs.close();  };
+    void flashStream::flush()  {fs.flush();  };
+    size_t flashStream::write(uint8_t ch) 
+                {
+                    return fs.write(ch);
+                    };
+   
+ flashStream::~flashStream () {if (fs) fs.close();} ;
+
+
+#else
+    void flashStream::setSize(unsigned int _size) {streamSize=_size;}; 
+    int  flashStream::open(short fileNum, char mode) 
+                {
+
+                 switch (fileNum) {
+                   case FN_CONFIG_JSON:     
+                        pos = 0;
+                        //streamSize = _size;  
+                        startPos = EEPROM_offsetJSON;
+                        textMode = true;
+                        contentType = HTTP_TEXT_JSON;
+                        return 1;    
+                    
+                  case FN_CONFIG_BIN:                    
+                        pos = 0;
+                        startPos = SYSCONF_OFFSET;
+                        streamSize = SYSCONF_SIZE;
+                        textMode =false;
+                        contentType = HTTP_OCTET_STREAM;
+                        return 1;
+
+                   default:
+                   return 0;
+            }          
+};
+
+
+     int flashStream::open(String _filename, char mode) 
+                {
+                  if (_filename == "/config.json") return open (FN_CONFIG_JSON,mode);
+                  else if (_filename == "/config.bin")  return open (FN_CONFIG_BIN,mode);
+                  else return 0;    
+                };
+/*
+    virtual int  open(unsigned int _startPos=0, unsigned int _size=4096 char mode='\0') 
+            {
+                pos = 0;
+                startPos = _startPos;
+                streamSize = _size;
+                return 1;
+            };       
+*/
+     unsigned int flashStream::seek(unsigned int _pos) 
+        {   pos=min(_pos, streamSize);
+            debugSerial<<F("Seek:")<<pos<<endl;
+            return pos;
+        };
+     int flashStream::available() { 
+            //debugSerial<<pos<<"%"<<streamSize<<";"; 
+            if (textMode && peek()==EOFchar) return 0; 
+            return (pos<streamSize);
+            };
+     int flashStream::read() 
+            {
+                int ch = peek(); 
+                pos++; 
+                //debugSerial<<"<"<<(char)ch;
+                return ch;
+                };
+     int flashStream::peek() 
+            {    
+                if (pos<streamSize) 
+                     return EEPROM.read(pos);
+                else return -1;    
+            };
+    void flashStream::flush() {
+        #if defined(ESP8266) || defined(ESP32)
+        if (EEPROM.commitReset())
+                infoSerial<<"Commited to FLASH"<<endl;
+        else    errorSerial<<"Commit error. len:"<<EEPROM.length()<<endl;       
+        #endif
+   };
+          
+    size_t flashStream::write(uint8_t ch) 
+            {
+                //debugSerial<<">"<<(char)ch;
+               #if defined(__AVR__)
+                  EEPROM.update(startPos+pos++,(char)ch);
+                  return 1;
+               #elif  defined(__SAM3X8E__)
+                  return EEPROM.write(startPos+pos++,(char)ch);
+               #else 
+                  EEPROM.write(startPos+pos++,(char)ch);
+                  return 1;  
+               #endif                
+            };
+    
+   #if defined(__SAM3X8E__)
+    size_t flashStream::write(const uint8_t *buffer, size_t size) 
+            {     
+                  //debugSerial<<("Write from:")<<pos<<" "<<size<<" bytes"<<endl;    
+                  EEPROM.write(startPos+pos,(byte*)buffer,size);
+                  pos+=size;
+                return size;          
+            };
+     
+   #endif    
+
+    #if defined(ESP8266) || defined(ESP32)      
+     void flashStream::putEOF()  
+            {
+                write (255);
+                EEPROM.commit();
+            };
+    #endif        
+
+ void flashStream::close()  
+    {
+       flush();
+    }    
+
+
 #endif
\ No newline at end of file
diff --git a/lighthub/flashstream.h b/lighthub/flashstream.h
index de76770..aa6f629 100644
--- a/lighthub/flashstream.h
+++ b/lighthub/flashstream.h
@@ -1,199 +1,89 @@
 #pragma once
-#ifndef _FLASHSTREAM_H_
-#define _FLASHSTREAM_H_
+//#ifndef _FLASHSTREAM_H_
+//#define _FLASHSTREAM_H_
 
-#include <main.h>
+
+
+#include <Stream.h>
+#include <Arduino.h>
+#include "seekablestream.h"
+//#include "config.h"
 
 #if defined(FS_STORAGE)
 #include <FS.h>
 #include <SPIFFS.h>
 #endif
 
-#if defined(ARDUINO_ARCH_AVR) 
-#include <EEPROM.h>
-#endif
+#define FN_CONFIG_JSON 1
+#define FN_CONFIG_BIN  2
 
-#if defined(ESP32) && !defined(FS_STORAGE)
-#include <EEPROM.h>
-#endif
-
-#if defined(ARDUINO_ARCH_ESP8266) 
-#include <ESP_EEPROM.h>
-#endif
-
-
-#if defined(__SAM3X8E__)
-#include <DueFlashStorage.h>
-extern DueFlashStorage EEPROM;
-#endif
-
-#ifdef NRF5
-#include <NRFFlashStorage.h>   //STUB
-extern NRFFlashStorage EEPROM;
-#endif
-
-#ifdef ARDUINO_ARCH_STM32
-#include <NRFFlashStorage.h>   //STUB
-extern NRFFlashStorage EEPROM;
-#endif
-
-
-#include <Stream.h>
-#include <Arduino.h>
-
-class seekableStream : public Stream 
-{
-protected:    
-unsigned int streamSize;       
-public:
-seekableStream(unsigned int size):Stream(),streamSize(size) {};
-unsigned int getSize() {return streamSize;}
-virtual unsigned int seek(unsigned int _pos = 0) = 0;
-};
 
 #if defined(FS_STORAGE)
 class flashStream : public seekableStream
 {
 private:
- File fs;
- String filename;
- char openedMode;
-
+String       filename; 
+char         openedMode; 
+File         fs;
 public:
-flashStream(String _filename):seekableStream(65535) 
+   flashStream():seekableStream(65535) 
             {
-                filename=_filename;
                 openedMode='\0';
-                open('r');
-            } 
-
-   int open(char mode='\0') 
-            {   
-               if (!mode  && openedMode) mode=openedMode;
-               if (!mode  && !openedMode) mode='r'; 
-               if (openedMode!=mode)
-                 { 
-                  char modestr[2];
-                  modestr[0]=mode;modestr[1]=0;  
-
-                  unsigned int savedPos=fs.position();
-                  if (fs) fs.close();
-
-                  if (fs =  SPIFFS.open(filename,modestr))
-                     {
-                        openedMode=mode;
-                        fs.seek(savedPos);
-                        debugSerial<<("Opened/")<<modestr<<(":")<<filename<<endl;
-                     }
-                  else 
-                     {
-                         openedMode='\0';  
-                         debugSerial<<("Open error/")<<modestr<<(":")<<filename<<endl; 
-                     }   
-            }
-       return fs;
-    }                  
-   virtual int available() { if (!fs) return 0; return fs.available();  };
-   virtual int read() {open('r');return fs.read();};
-   virtual int peek() {open('r'); return fs.peek();};
-   virtual unsigned int seek(unsigned int _pos = 0){return open();fs.seek(_pos,SeekSet);};         
-   virtual void flush() {fs.flush(); open('r'); };
-   virtual size_t write(uint8_t ch) {open('w'); return fs.write(ch);};
-   using Print::write;
-   void putEOF(){write (255);};
-virtual ~flashStream () {if (fs) fs.close();} ;
+                filename = "";
+            };   
+   virtual int open(String _filename, char mode) override;
+   virtual int available() override;             
+   virtual int read(); 
+   virtual int peek(); 
+   virtual unsigned int seek  (unsigned int _pos = 0) override;    
+   virtual void close() override;
+   virtual void flush() override;
+   virtual size_t write(uint8_t ch);              
+   using Print::write; 
+   virtual ~flashStream ();
 };
 
 #else
-
-
+#define MAX_STREAM_SIZE 4096
 class flashStream : public seekableStream 
 {
 protected:
 unsigned int pos;  
 unsigned int startPos; 
 
-
 public:
-flashStream(unsigned int _startPos=0, unsigned int _size=4096 ):seekableStream(_size) 
+    flashStream():seekableStream(MAX_STREAM_SIZE){};
+    void setSize(unsigned int _size);
+    int open(short fileNum, char mode='\0') ; 
+    virtual int open(String _filename, char mode='\0') override;
+/*
+    virtual int  open(unsigned int _startPos=0, unsigned int _size=4096 char mode='\0') 
             {
-            pos = _startPos; startPos = _startPos; 
-
-            };
-
-    void setSize(unsigned int _size) {streamSize=_size;}; 
-    int  open(bool write=false) {return 1;};       
-
-    virtual unsigned int seek(unsigned int _pos = 0) 
-        {   pos=min(startPos+_pos, startPos+streamSize);
-            debugSerial<<F("Seek:")<<pos<<endl;
-            return pos;
-        };
-    virtual int available() { 
-            //debugSerial<<pos<<"%"<<streamSize<<";"; 
-            return (pos<streamSize);
-            };
-    virtual int read() 
-            {
-                int ch = peek(); 
-                pos++; 
-                //debugSerial<<"<"<<(char)ch;
-                return ch;
-                };
-    virtual int peek() 
-            {    
-                if (pos<streamSize) 
-                     return EEPROM.read(pos);
-                else return -1;    
-            };
-   virtual void flush() {
-        #if defined(ESP8266) || defined(ESP32)
-        if (EEPROM.commitReset())
-                infoSerial<<"Commited to FLASH"<<endl;
-        else    errorSerial<<"Commit error. len:"<<EEPROM.length()<<endl;       
-        #endif
-   };
-          
-   virtual size_t write(uint8_t ch) 
-            {
-                //debugSerial<<">"<<(char)ch;
-               #if defined(__AVR__)
-                  EEPROM.update(pos++,(char)ch);
-                  return 1;
-               #elif  defined(__SAM3X8E__)
-                  return EEPROM.write(pos++,(char)ch);
-               #else 
-                  EEPROM.write(pos++,(char)ch);
-                  return 1;  
-               #endif   
-
-     //           #if defined(__SAM3X8E__)
-     //           return EEPROM.write(pos++,(char)ch);
-     //           #else
-     //           EEPROM.update(pos++,(char)ch);
-     //           return 1;
-     //           #endif   
-     //       return 0;                
-            };
+                pos = 0;
+                startPos = _startPos;
+                streamSize = _size;
+                return 1;
+            };       
+*/
+    virtual unsigned int seek(unsigned int _pos = 0); 
+    virtual int available() override;    
+    virtual int read() ;
+    virtual int peek() ; 
+    virtual void flush();      
+    virtual size_t write(uint8_t ch) ;       
     
-   #if defined(__SAM3X8E__)
-   virtual size_t write(const uint8_t *buffer, size_t size) override
-            {     
-                  //debugSerial<<("Write from:")<<pos<<" "<<size<<" bytes"<<endl;    
-                  EEPROM.write(pos,(byte*)buffer,size);
-                  pos+=size;
-                return size;          
-            };
-   #else 
-   using Print::write;//(const uint8_t *buffer, size_t size);         
-   #endif          
-    void putEOF(){write (255);
-    #if defined(ESP8266) || defined(ESP32)
-    EEPROM.commit();
-    #endif
-    };
+    #if defined(__SAM3X8E__)
+    virtual size_t write(const uint8_t *buffer, size_t size) override;
+    #else 
+    using Print::write;//(const uint8_t *buffer, size_t size);         
+    #endif    
 
+    #if defined(ESP8266) || defined(ESP32)      
+    virtual void putEOF() override ;          
+    #endif        
+
+    virtual void close() override;  
 };
 #endif
 
-#endif
\ No newline at end of file
+//#endif
\ No newline at end of file
diff --git a/lighthub/item.cpp b/lighthub/item.cpp
index 291e4bb..74aa465 100644
--- a/lighthub/item.cpp
+++ b/lighthub/item.cpp
@@ -418,7 +418,7 @@ void Item::setExt(long int par)  // Only store if VAL is int (autogenerated or c
 {
     if (!itemExt)
     {
-    for (int i = aJson.getArraySize(itemArr); i <= 4; i++)
+    for (int i = aJson.getArraySize(itemArr); i <= I_EXT; i++)
         aJson.addItemToArray(itemArr, itemExt=aJson.createNull());// Item((long int)0));
     //itemExt = aJson.getArrayItem(itemArr, I_EXT);
       };
@@ -696,8 +696,8 @@ int Item::Ctrl(itemCmd cmd,  char* subItem, bool allowRecursion)
     /// DELAYED COMMANDS processing
      if (suffixCode == S_DELAYED)
         {
-                for (int i = aJson.getArraySize(itemArr); i < I_TIMESTAMP+1; i++)
-                            aJson.addItemToArray(itemArr, aJson.createItem( (long int) 0));
+                for (int i = aJson.getArraySize(itemArr); i <= I_TIMESTAMP; i++)
+                            aJson.addItemToArray(itemArr, aJson.createNull());
             
                 aJsonObject *timestampObj = aJson.getArrayItem(itemArr, I_TIMESTAMP);
                 if (timestampObj && cmd.getCmd()<=0xf)
@@ -705,6 +705,7 @@ int Item::Ctrl(itemCmd cmd,  char* subItem, bool allowRecursion)
                    if (cmd.getInt()>0)       
                     {
                         timestampObj->valueint = millis()+cmd.getInt();
+                        timestampObj->type = aJson_Int;
                         timestampObj->subtype=cmd.getCmd();
                         debugSerial<<F( "Armed for ")<< cmd.getInt() << F(" ms :")<<timestampObj->valueint<<endl;
                     }
diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 9ad197e..c3807b3 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -48,6 +48,7 @@ Streamlog errorSerial(&debugSerialPort,LOG_ERROR, ledRED);
 Streamlog infoSerial (&debugSerialPort,LOG_INFO);
 #endif
 
+/*
 #if defined(FS_STORAGE)
 flashStream sysConfStream("/config.bin"); 
 flashStream JSONStream("/config.json"); 
@@ -55,6 +56,9 @@ flashStream JSONStream("/config.json");
 flashStream sysConfStream(SYSCONF_OFFSET,EEPROM_offsetJSON); 
 flashStream JSONStream(EEPROM_offsetJSON,MAX_JSON_CONF_SIZE); 
 #endif
+*/
+
+flashStream sysConfStream;
 
 systemConfig sysConf(&sysConfStream);
 
@@ -172,20 +176,23 @@ if (configLocked)
     errorSerial<<F("Not unlocked in 10s - continue ...")<<endl;
 }
 
-debugSerial<<F("Stopping channels ...")<<endl;
-//Stoping the channels
-aJsonObject * item = items->child;
-while (items && item)
-   {
-    if (item->type == aJson_Array && aJson.getArraySize(item)>0)
+if (root && items)
+{
+    debugSerial<<F("Stopping channels ...")<<endl;
+    //Stoping the channels
+    aJsonObject * item = items->child;
+    while (item)
     {
-        Item it(item->name);
-        if (it.isValid()) it.Stop();
-        yield();
+        if (item->type == aJson_Array && aJson.getArraySize(item)>0)
+        {
+            Item it(item->name);
+            if (it.isValid()) it.Stop();
+            yield();
 
+        }
+    item = item->next;
     }
-   item = item->next;
-  }
+} 
 pollingItem = NULL;
 debugSerial<<F("Stopped")<<endl;
 
@@ -217,22 +224,30 @@ debugSerial<<F("Deleting conf. RAM was:")<<freeRam();
 bool isNotRetainingStatus() {
   return (lanStatus != RETAINING_COLLECTING);
 }
+// Custom HTTP request handler
+// Return values: 
+// 1 - work completed. Dont need to respond, just close socket
+// 0 - no match continue with default lib behavior
+// 401 - not authorized
+// 400 - bad request
+// 200 | CONTENT_TYPE - ok + content_type
+//  ... same sor other http codes
+// if response != "" - put response in http answer
 
-int httpHandler(Client& client, String request, long contentLength, bool authorized)
+uint16_t httpHandler(Client& client, String request, long contentLength, bool authorized, String& response )
 {
-    String response = "";
-
+    //String response = "";
     debugSerial<<request<<endl;
-
-
     if (request == (F("GET /"))) 
         {
-         client.println(F("HTTP/1.1 301 Moved permanently"));
-         client.print(F("Location: http://lazyhome.ru/pwa?mac="));
-         for (int i=0; i<6; i++) {client.print(sysConf.mac[i]>>4,HEX);client.print(sysConf.mac[i]&0xf,HEX);}
-         client.print(F("&ip="));
-         client.println(Ethernet.localIP());
+         ArduinoOTA.sendHttpResponse(client,301,false);  // Send only HTTP header, no close socket 
+         client.println(F("Location: http://lazyhome.ru/pwa?mac="));
+         // todo for (int i=0; i<6; i++) {response+=(sysConf.mac[i]>>4,HEX);response+=(sysConf.mac[i]&0xf,HEX);}
+         //response+=(F("&ip="));
+         //todo response+=(Ethernet.localIP());
+         client.println();
          delay(100);
+         client.stop();
          return 1;
         }
     if (!authorized) return 401;
@@ -247,7 +262,8 @@ int httpHandler(Client& client, String request, long contentLength, bool authori
         itemCmd ic;
         ic.loadItem(&item,SEND_COMMAND|SEND_PARAMETERS);
         char buf[32];
-        response=ic.toString(buf, sizeof(buf));             
+        response=ic.toString(buf, sizeof(buf));    
+        return 200 | HTTP_TEXT_PLAIN;         
        }
     else if (request.startsWith(F("GET /item/")))
        {
@@ -261,6 +277,7 @@ int httpHandler(Client& client, String request, long contentLength, bool authori
            {if (item.isActive()) item.setCmd(CMD_ON); else item.setCmd(CMD_OFF);} 
          char buf[32];
          response=ic.toString(buf, sizeof(buf));
+         return 200 | HTTP_TEXT_PLAIN;  
         
        }  
     else if (request.startsWith(F("POST /command/"))) 
@@ -274,26 +291,10 @@ int httpHandler(Client& client, String request, long contentLength, bool authori
         debugSerial<<F("Cmd: ")<<request<<endl;
         if (request=="reboot ") client.stop();
         const char* res=request.c_str();
-        cmd_parse((char*) res);        
+        cmd_parse((char*) res);     
+        return 200 | HTTP_TEXT_PLAIN;    
         } 
-    else return -1;  //Unknown
-
-        client.println(F("HTTP/1.1 200 OK"));
-        client.println(F("Connection: close"));
-        
-          #ifdef CORS
-          client.print(F("Access-Control-Allow-Origin: "));
-          client.println(F(CORS));
-          #endif
-          
-        if (response!="") {
-              client.println(F("Content-Type: text/plain"));
-              client.println();
-              client.println(response);
-              }
-  
-        delay(100);
-return 1;
+    else return 0;  //Unknown
 }
 
 int inTopic (char * topic,  topicType tt)
@@ -410,7 +411,7 @@ if (element && element->type == aJson_String) return element->valuestring;
                         }
 
             debugSerial<<passwordBuf<<endl;            
-            ArduinoOTA.begin(Ethernet.localIP(), "Lighthub", passwordBuf, InternalStorage, sysConfStream, JSONStream);
+            ArduinoOTA.begin(Ethernet.localIP(), "Lighthub", passwordBuf, InternalStorage, sysConfStream);
             ArduinoOTA.setCustomHandler(httpHandler);
             infoSerial<<F("OTA initialized\n");
 
@@ -623,7 +624,7 @@ lan_status lanLoop() {
 
                 case DHCP_CHECK_REBIND_FAIL:
                     errorSerial<<F("Error: rebind fail")<<endl;
-                    if (mqttClient.connected()) mqttClient.disconnect();
+              ///      if (mqttClient.connected()) mqttClient.disconnect(); ??
                     //timerLanCheckTime = millis();// + 1000;
                     lanStatus = DO_REINIT;
                     break;
@@ -999,7 +1000,7 @@ void Changed(int i, DeviceAddress addr, float currentTemp) {
     //char addrbuf[17];
     //char valstr[16] = "NIL";
     //char *owEmitString = NULL;
-    char *owItem = NULL;
+    //char *owItem = NULL;
 
     SetBytes(addr, 8, addrstr);
     addrstr[17] = 0;
@@ -1229,14 +1230,21 @@ int loadConfigFromEEPROM()
 {
     char ch;
     infoSerial<<F("Loading Config from EEPROM")<<endl;
-    JSONStream.open('r');
-    JSONStream.seek();    
-    if (JSONStream.peek() == '{') {
-        aJsonStream as = aJsonStream(&JSONStream);
+    #if defined(FS_STORAGE)
+    sysConfStream.open("/config.json",'r');
+    #else
+    sysConfStream.open(FN_CONFIG_JSON,'r');
+    #endif
+
+    //JSONStream.seek();    
+    if (sysConfStream.peek() == '{') {
+        aJsonStream as = aJsonStream(&sysConfStream);
         cleanConf();
         root = aJson.parse(&as);
+        sysConfStream.close();
         if (!root) {
             errorSerial<<F("load failed")<<endl;
+        //    sysConfStream.close();
             return 0;
         }
         infoSerial<<F("Loaded")<<endl;
@@ -1244,8 +1252,9 @@ int loadConfigFromEEPROM()
         ethClient.stop(); //Refresh MQTT connect to get retained info
         return 1;
     } else {
-        JSONStream.write(255); //truncate garbage
+        sysConfStream.putEOF(); //truncate garbage
         infoSerial<<F("No stored config")<<endl;
+        sysConfStream.close();
         return 0;
     }
     return 0;
@@ -1260,10 +1269,17 @@ if (arg_cnt>1)
     infoSerial<<F("Config autosave:")<<sysConf.getSaveSuccedConfig()<<endl;
     return;
 }
+    #if defined(FS_STORAGE)
+    sysConfStream.open("/config.json",'w');
+    #else
+    sysConfStream.open(FN_CONFIG_JSON,'w');
+    #endif
+
 #if defined(__SAM3X8E__) 
   char* outBuf = (char*) malloc(MAX_JSON_CONF_SIZE); /* XXX: Dynamic size. */
   if (outBuf == NULL)
     {
+      sysConfStream.close();  
       return;
     }
   infoSerial<<F("Saving config to EEPROM..")<<endl;
@@ -1271,18 +1287,18 @@ if (arg_cnt>1)
   aJson.print(root, &stringStream);
   int len = strlen(outBuf);
   outBuf[len++]= 255;
-  JSONStream.seek();
-  size_t res = JSONStream.write((byte*) outBuf,len);
+  //JSONStream.seek();
+  size_t res = sysConfStream.write((byte*) outBuf,len);
   free (outBuf);
   infoSerial<<res<< F("bytes from ")<<len<<F(" are saved to EEPROM")<<endl;
 #else
-    JSONStream.open('w');
-    JSONStream.seek();
-    aJsonStream jsonEEPROMStream = aJsonStream(&JSONStream);
+    //JSONStream.open('w');
+    //JSONStream.seek();
+    aJsonStream jsonEEPROMStream = aJsonStream(&sysConfStream);
     infoSerial<<F("Saving config to EEPROM..");
     aJson.print(root, &jsonEEPROMStream);
-    JSONStream.putEOF();
-    JSONStream.flush();
+    sysConfStream.putEOF();
+    sysConfStream.close();
     infoSerial<<F("Saved to EEPROM")<<endl;
 #endif
 }
@@ -1394,10 +1410,11 @@ void cmdFunctionSetMac(int arg_cnt, char **args) {
 void cmdFunctionGet(int arg_cnt, char **args) {
 if (arg_cnt>1)
 {
-    if (!strcasecmp_P(args[1],ON_P)) sysConf.setLoadHTTPConfig(true);
-    if (!strcasecmp_P(args[1],OFF_P)) sysConf.setLoadHTTPConfig(false);
+    if (!strcasecmp_P(args[1],ON_P)) {sysConf.setLoadHTTPConfig(true); return;};
+    if (!strcasecmp_P(args[1],OFF_P)) {sysConf.setLoadHTTPConfig(false); return;};
+    
     infoSerial<<F("Loading HTTP config on startup:")<<sysConf.getLoadHTTPConfig()<<endl;
-    return;
+
 }
 
     lanStatus= loadConfigFromHttp(arg_cnt, args);
diff --git a/lighthub/seekablestream.h b/lighthub/seekablestream.h
new file mode 100644
index 0000000..b8b6120
--- /dev/null
+++ b/lighthub/seekablestream.h
@@ -0,0 +1,27 @@
+#ifndef _SEEKABLESTREAM_H_
+#define _SEEKABLESTREAM_H_
+
+#include <Stream.h>
+#include <Arduino.h>
+
+#define EOFchar 255
+
+class seekableStream : public Stream 
+{
+protected:    
+unsigned int streamSize;  
+bool         textMode;
+uint16_t     contentType;
+
+public:
+seekableStream(unsigned int size):Stream(),streamSize(size) {};
+unsigned int    getSize() {return streamSize;}
+void            setSize (unsigned int size) {streamSize = size;};
+virtual unsigned int seek(unsigned int _pos = 0) = 0;
+virtual int     open(String _filename, char mode) = 0; 
+virtual void    close() = 0;
+virtual uint16_t getContentType() {return contentType;};
+virtual void    putEOF() {if (textMode) write (EOFchar);};
+};
+
+#endif
\ No newline at end of file
diff --git a/lighthub/systemconfigdata.h b/lighthub/systemconfigdata.h
new file mode 100644
index 0000000..40aebb0
--- /dev/null
+++ b/lighthub/systemconfigdata.h
@@ -0,0 +1,48 @@
+#define SYSCONF_OFFSET 0
+#define EEPROM_offset_NotAlligned SYSCONF_OFFSET+sizeof(systemConfigData)
+#define SYSCONF_SIZE EEPROM_offsetJSON
+#define EEPROM_offsetJSON EEPROM_offset_NotAlligned + (4 -(EEPROM_offset_NotAlligned & 3))
+
+#define MAXFLASHSTR 32
+#define PWDFLASHSTR 16
+#define EEPROM_SIGNATURE "LHCF"
+#define EEPROM_SIGNATURE_LENGTH 4
+
+//#define EEPROM_offsetJSON IFLASH_PAGE_SIZE
+#define EEPROM_FIX_PART_LEN EEPROM_offsetJSON-SYSCONF_OFFSET
+
+const char EEPROM_signature[] = EEPROM_SIGNATURE;
+
+ typedef char flashstr[MAXFLASHSTR];
+ typedef char flashpwd[PWDFLASHSTR];
+ typedef uint8_t macAddress[6];
+
+ #pragma pack(push, 1)
+ typedef struct
+      { 
+        char    signature[4];  
+        macAddress  mac;  //6 bytes
+        union {
+                uint16_t configFlags;
+                struct
+                      { 
+                        uint8_t  serialDebugLevel:4; 
+                        uint8_t  syslogDebugLevel:4; 
+                        uint8_t  notGetConfigFromHTTP:1;
+                        uint8_t  saveToFlash:1;
+                      };
+              };  
+        uint32_t ip;
+        uint32_t dns;
+        uint32_t gw;
+        uint32_t mask;
+
+        flashstr configURL;
+        flashpwd MQTTpwd;
+        flashpwd OTApwd;
+
+        uint16_t sysConfigHash;
+        uint16_t JSONHash;
+            
+      } systemConfigData;
+ #pragma (pop) 
\ No newline at end of file