diff --git a/lighthub/main.cpp b/lighthub/main.cpp
index 20c06f5..dca0d76 100644
--- a/lighthub/main.cpp
+++ b/lighthub/main.cpp
@@ -1237,7 +1237,7 @@ void resetHard() {
 }
 
 #ifdef _owire
-
+/*
 void Changed(int i, DeviceAddress addr, float currentTemp) {
     char addrstr[32] = "NIL";
     //char addrbuf[17];
@@ -1248,21 +1248,23 @@ void Changed(int i, DeviceAddress addr, float currentTemp) {
     SetBytes(addr, 8, addrstr);
     addrstr[17] = 0;
     if (!root) return;
-    //printFloatValueToStr(currentTemp,valstr);
-    debugSerial<<endl<<F("T:")<<currentTemp<<F("<")<<addrstr<<F(">")<<endl;
-    aJsonObject *owObj = aJson.getObjectItem(owArr, addrstr);     
+    aJsonObject *owObj = aJson.getObjectItem(owArr, addrstr); 
+
+    if (i<0) //just print note about address
+    { 
+      if (owObj && owObj->child && owObj->child->type==aJson_String && owObj->child->valuestring)  
+      debugSerial<<F(" ")<<owObj->child->valuestring<<F(" ");  
+      return;  
+    }
+
+    debugSerial<<endl<<F("T:")<<currentTemp<<F("<")<<addrstr<<F(">")<<endl;    
     if ((currentTemp != -127.0) && (currentTemp != 85.0) && (currentTemp != 0.0))
-        executeCommand(owObj,-1,itemCmd(currentTemp).setSuffix(S_VAL));
-
-    /*
-    if (owObj) {
-        owEmitString = getStringFromConfig(owObj, "emit");
-        debugSerial<<owEmitString<<F(">")<<endl;
-          if ((currentTemp != -127.0) && (currentTemp != 85.0) && (currentTemp != 0.0))
-          {
-           if (owEmitString)      // publish temperature to MQTT if configured
-            {
+        executeCommand(owObj,-1,itemCmd(currentTemp).setSuffix(S_VAL));    
+    else 
+        if (owObj && owObj->child && owObj->child->type==aJson_String && owObj->child->valuestring)
+              errorSerial<<F("Read error for ")<<owObj->child->valuestring<<endl;    
 
+////
 #ifdef WITH_DOMOTICZ
             aJsonObject *idx = aJson.getObjectItem(owObj, "idx");
         if (idx && && idx->type ==aJson_String && idx->valuestring) {//DOMOTICZ json format support
@@ -1275,23 +1277,9 @@ void Changed(int i, DeviceAddress addr, float currentTemp) {
             return;
         }
 #endif
-
-            //strcpy_P(addrstr, outprefix);
-            setTopic(addrstr,sizeof(addrstr),T_OUT);
-            strncat(addrstr, owEmitString, sizeof(addrstr));
-            if (mqttClient.connected() && !ethernetIdleCount)
-                  mqttClient.publish(addrstr, valstr);
-        }
-        // And translate temp to internal items
-        owItem = getStringFromConfig(owObj, "item");
-        if (owItem)
-            thermoSetCurTemp(owItem, currentTemp);  ///TODO: Refactore using Items interface
-        } // if valid temperature
-  } // if Address in config
-  else debugSerial<<addrstr<<F(">")<<endl; // No item found
-*/
+////
 }
-
+*/
 #endif //_owire
 
 int cmdFunctionHelp(int arg_cnt, char **args)
@@ -1310,6 +1298,7 @@ int cmdFunctionHelp(int arg_cnt, char **args)
                           "'log [serial_loglevel] [udp_loglevel]' - define log level (0..7)\n"
                           "'kill' - test watchdog\n"
                           "'clear' - clear EEPROM\n"
+                          "'search' - search 1-wire dev\n"
                           "'reboot' - reboot controller");
 return 200;                            
 }
@@ -1339,6 +1328,12 @@ int cmdFunctionReboot(int arg_cnt, char **args) {
 return 500;    
 }
 
+int cmdFunctionSearch(int arg_cnt, char **args) {
+    infoSerial<<F("searching");
+    owSearch();
+return 200;    
+}
+
 void applyConfig() {
     if (!root || configLocked) return;
 configLocked++;
@@ -1403,10 +1398,10 @@ setupSyslog();
     owArr = aJson.getObjectItem(root, "ow");
     if (owArr && !owReady) {
         aJsonObject *item = owArr->child;
-        owReady = owSetup(&Changed);
+        owReady = owSetup();
         if (owReady) infoSerial<<F("One wire Ready\n");
-        t_count = 0;
-
+///        t_count = 0;
+/*
         while (item && owReady) {
             if ((item->type == aJson_Object)) {
                 DeviceAddress addr;
@@ -1417,6 +1412,8 @@ setupSyslog();
             yield();
             item = item->next;
         }
+
+        */
     }
 #endif
 
@@ -2658,6 +2655,7 @@ void setupCmdArduino() {
     cmdAdd("clear",cmdFunctionClearEEPROM);
     cmdAdd("reboot",cmdFunctionReboot);
     cmdAdd("log",cmdFunctionLoglevel);
+    cmdAdd("search",cmdFunctionSearch);
 }
 
 void loop_main() { 
diff --git a/lighthub/owTerm.cpp b/lighthub/owTerm.cpp
index 2b62d1a..1fe6aff 100644
--- a/lighthub/owTerm.cpp
+++ b/lighthub/owTerm.cpp
@@ -25,20 +25,28 @@ e-mail    anklimov@gmail.com
 #include "utils.h"
 #include "options.h"
 #include "main.h"
+#include "aJSON.h"
 
+extern aJsonObject *owArr;
+aJsonObject *dev2Check = NULL;
 
 OneWire *oneWire = NULL;
 
-DeviceAddress *term = NULL;
+//DeviceAddress *term = NULL;
+//uint16_t *wstat = NULL;
 
-uint16_t *wstat = NULL;
 DallasTemperature *sensors = NULL;
 
-short si = 0;
-int t_count = 0;
+//short si = 0;
+//int t_count = 0;
 unsigned long owTimer = 0;
 
-owChangedType owChanged;
+//owChangedType owChanged;
+
+void owSearch()
+{
+    owUpdate();
+}
 
 bool zero(const uint8_t *addr, uint8_t len)
 {
@@ -47,17 +55,75 @@ bool zero(const uint8_t *addr, uint8_t len)
 	return true;
 }
 
+char * getReableNote(aJsonObject * owObj)
+{
+     if (owObj && owObj->child)
+     {
+       if (owObj->child->type==aJson_String && owObj->child->valuestring) return owObj->child->valuestring;
+       if (owObj->child->child && owObj->child->child->type==aJson_String && owObj->child->child->valuestring) return owObj->child->child->valuestring;
+       return NULL;
+     }
+
+}
+void processTemp(aJsonObject * owObj, float currentTemp) {
+    if (!owObj || !owArr) return;
+    char* note = getReableNote(owObj);   
+    debugSerial<<endl<<F("1WT:")<<currentTemp<<F(" <")<<owObj->name<<F("> ");    
+    if ((currentTemp != -127.0) && (currentTemp != 85.0) && (currentTemp != 0.0))
+        {
+        if (note) debugSerial<<note;    
+        debugSerial<<endl;    
+        executeCommand(owObj,-1,itemCmd(currentTemp).setSuffix(S_VAL));    
+        }
+    else 
+        if (note) errorSerial<<F("1WT: Read error for ")<<note<<endl;  
+  
+/*
+#ifdef WITH_DOMOTICZ
+            aJsonObject *idx = aJson.getObjectItem(owObj, "idx");
+        if (idx && && idx->type ==aJson_String && idx->valuestring) {//DOMOTICZ json format support
+            debugSerial << endl << idx->valuestring << F(" Domoticz valstr:");
+            char valstr[50];
+            sprintf(valstr, "{\"idx\":%s,\"svalue\":\"%.1f\"}", idx->valuestring, currentTemp);
+            debugSerial << valstr;
+            if (mqttClient.connected() && !ethernetIdleCount)
+                  mqttClient.publish(owEmitString, valstr);
+            return;
+        }
+#endif
+*/
+}
+
+
 int owUpdate() {
 #ifndef OWIRE_DISABLE
-    unsigned long finish = millis();// + OW_UPDATE_INTERVAL;
+    DeviceAddress dev;
+    //unsigned long finish = millis();// + OW_UPDATE_INTERVAL;
+    if (!oneWire || !owArr) return 0;
+    oneWire->reset_search();
+    debugSerial << F("1WT: Searching dev")<<endl;
+    while (oneWire->wireSearch(dev) > 0)
+        {   
+            char addrstr[17];
+            SetBytes(dev, 8, addrstr);
+            addrstr[16] = 0;
+            aJsonObject * owObj=aJson.getObjectItem(owArr,addrstr);
+            debugSerial<<F("1WT:")<<addrstr;
+            if (owObj)
+                    {
+                        char * note = getReableNote(owObj);
+                        if (note) debugSerial<<F(" is ")<<note<<endl;
+                    }
+            else 
+                    {
+                        debugSerial<<F(" new")<<endl;
+                    }    
+        }
+
+
+
 /*
-    if (oneWire->getError() == DS2482_ERROR_SHORT)
-       {
-         debugSerial<<F("1-wire shorted.")<<endl;
-         return false;
-       }
-*/
-    //Serial.println(F("Searching"));
+
     if (oneWire) oneWire->reset_search();
     for (short i = 0; i < t_count; i++) wstat[i] &= ~SW_FIND; //absent
 
@@ -71,6 +137,7 @@ int owUpdate() {
                     wstat[i] |= SW_FIND;
                     debugSerial.print(F(" Node:"));
                     PrintBytes(term[t_count], 8,0);
+                    processTemp(-1, term[t_count], 0.0); //print note
                     debugSerial.println(F(" alive"));
                     break;
                 }; //alive
@@ -79,6 +146,7 @@ int owUpdate() {
                 wstat[t_count] = SW_FIND; //Newly detected
                 debugSerial<<F("dev#")<<t_count<<F(" Addr:");
                 PrintBytes(term[t_count], 8,0);
+                if processTemp(-1, term[t_count], 0.0); //print note
                 debugSerial.println();
                 if (term[t_count][0] == 0x28) {
                     sensors->setResolution(term[t_count], TEMPERATURE_PRECISION);
@@ -93,12 +161,13 @@ int owUpdate() {
     } //while
 
     debugSerial<<F("1-wire count: ")<<t_count<<endl;
+*/
 #endif
 return true;
 }
 
 
-int owSetup(owChangedType owCh) {
+int owSetup() {
 #ifndef OWIRE_DISABLE
     //// todo - move memory allocation to here
     if (oneWire) return true;    // Already initialized
@@ -117,9 +186,13 @@ if (!oneWire)
                     errorSerial<<F("Error 1-w init #1")<<endl;
                     return false;
                 }
+
+            
+
 // Pass our oneWire reference to Dallas Temperature.
 //    sensors = new DallasTemperature(oneWire);
 
+/*
     term = new DeviceAddress[t_max];
     debugSerial<<F("Term. Free:")<<freeRam()<<endl;
 //regs = new    int [t_max];
@@ -132,6 +205,7 @@ if (!term || ! wstat)
                 }
 
     owChanged = owCh;
+*/
 
 #ifdef DS2482_100_I2C_TO_1W_BRIDGE
     Wire.begin();
@@ -173,45 +247,57 @@ int sensors_loop(void) {
        }
 #endif
 
-    if (!sensors)
+
+if (!sensors)
        {
          // Setup sensors library and resolution
          sensors = new DallasTemperature(oneWire);
          sensors->begin();
          // 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
-         for (short i = 0; i < t_count; i++) sensors->setResolution(term[i],TEMPERATURE_PRECISION);
-         sensors->setWaitForConversion(false);
-       }
 
+         //for (short i = 0; i < t_count; i++) sensors->setResolution(term[i],TEMPERATURE_PRECISION);
+         sensors->setWaitForConversion(false);
+        }
+
+    if (!dev2Check && owArr)
+        {
+ 
+          if (owArr && owArr->type == aJson_Object && owArr->child) dev2Check = owArr->child;
+          ///owUpdate(); //every check circle - scan for new devices
+        }
+
+/*
     if (si >= t_count) {
         owUpdate(); //every check circle - scan for new devices
         si = 0;
         return 8000;
     }
-
+*/
+    DeviceAddress curDev;
+    
+    if (dev2Check && SetAddr(dev2Check->name,curDev))
+    {
     float t;
-    switch (term[si][0]) {
+    switch (curDev[0]) {
 
         case 0x28: // Thermomerer
-            t = sensors->getTempC(term[si]);//*10.0;
-            if (owChanged) owChanged(si, term[si], t);
-            sensors->requestTemperaturesByAddress(term[si]);
-            si++;
-            return 2500;
+            sensors->setResolution(curDev,TEMPERATURE_PRECISION);
+
+            t = sensors->getTempC(curDev);//*10.0;
+            processTemp(dev2Check, t);
+            sensors->requestTemperaturesByAddress(curDev);
 
-            //   default
-            //   return sensors_ext();
     } //switch
+    }
 
-
-    si++;
-    return check_circle;
+    //si++;
+    dev2Check=dev2Check->next;
+    return INTERVAL_1W;
 
 }
 
 
 void owLoop() {
-    //if (millis() >= owTimer) owTimer = millis() + sensors_loop();
     if (isTimeOver(owTimer,millis(),INTERVAL_1W))
     {
         sensors_loop();
@@ -219,7 +305,7 @@ void owLoop() {
     }
 }
 
-
+/*
 int owFind(DeviceAddress addr) {
     for (short i = 0; i < t_count; i++) if (!memcmp(term[i], addr, 8)) return i;//find
     return -1;
@@ -245,6 +331,8 @@ void owAdd(DeviceAddress addr) {
     t_count++;
 #endif
 }
+
+*/
 #endif
 
 void setupOwIdle (void (*ptr)())
@@ -253,3 +341,4 @@ void setupOwIdle (void (*ptr)())
     if (oneWire) oneWire->idle(ptr);
   #endif
 }
+
diff --git a/lighthub/owTerm.h b/lighthub/owTerm.h
index b940f60..e3ba95f 100644
--- a/lighthub/owTerm.h
+++ b/lighthub/owTerm.h
@@ -31,7 +31,7 @@ e-mail    anklimov@gmail.com
 #define SW_INMASK 0xFC
 
 #define recheck_interval 5
-#define check_circle 2000/t_count
+//#define check_circle 2000/t_count
 
 #define SW_FIND        1
 #define SW_DOUBLECHECK 2      //Doublecheck required
@@ -45,8 +45,8 @@ e-mail    anklimov@gmail.com
 #define SW_PULSE1_R      0x200    //Pulse Reset requested
 
 
-#define recheck_interval 5
-#define check_circle 2000/t_count
+//#define recheck_interval 5
+//#define check_circle 2000/t_count
 
 #if not defined (OW_DEVICES_LIMIT)
 #define t_max 20 //Maximum number of 1w devices
@@ -63,7 +63,7 @@ e-mail    anklimov@gmail.com
 
 extern aJsonObject *owArr;
 
-typedef   void (*owChangedType) (int , DeviceAddress, float) ;
+//typedef   void (*owChangedType) (int , DeviceAddress, float) ;
 
 #ifndef USE_1W_PIN
 #define DS2482_100_I2C_TO_1W_BRIDGE // HW driver
@@ -81,21 +81,22 @@ typedef   void (*owChangedType) (int , DeviceAddress, float) ;
 extern OneWire *oneWire;
 
 extern DallasTemperature *sensors;
-extern DeviceAddress *term ;
-extern int           *regs ;
-extern uint16_t       *wstat;
-extern int            t_count;
-extern short          si;
+//extern DeviceAddress *term ;
+//extern int           *regs ;
+//extern uint16_t       *wstat;
+//extern int            t_count;
+//extern short          si;
 
-extern owChangedType  owChanged;
+//extern owChangedType  owChanged;
 
 
 
 int  owUpdate();
-int  owSetup(owChangedType owCh);
+int  owSetup();
 void owLoop();
 void setupOwIdle(void (*)()) ;
-int owFind(DeviceAddress addr);
-void owAdd (DeviceAddress addr);
+//int owFind(DeviceAddress addr);
+//void owAdd (DeviceAddress addr);
+void owSearch();
 
 #endif
diff --git a/lighthub/utils.cpp b/lighthub/utils.cpp
index e3b1b12..3dd0901 100644
--- a/lighthub/utils.cpp
+++ b/lighthub/utils.cpp
@@ -60,6 +60,7 @@ extern aJsonObject *topics;
 
 
 void PrintBytes(uint8_t *addr, uint8_t count, bool newline) {
+    if (!addr) return;
     for (uint8_t i = 0; i < count; i++) {
         infoSerial<< _HEX(addr[i] >> 4);
         infoSerial<< _HEX(addr[i] & 0x0f);
@@ -72,6 +73,7 @@ const char HEXSTR[] = "0123456789ABCDEF";
 
 void SetBytes(uint8_t *addr, uint8_t count, char *out) {
     // debugSerialPort.println("SB:");
+    if (!addr || !out) return;
     for (uint8_t i = 0; i < count; i++) {
         *(out++) = HEXSTR[(addr[i] >> 4)];
         *(out++) = HEXSTR[(addr[i] & 0x0f)];
@@ -81,20 +83,23 @@ void SetBytes(uint8_t *addr, uint8_t count, char *out) {
 }
 
 
-byte HEX2DEC(char i) {
+byte HEX2DEC(char i, bool *err) {
     byte v=0;
     if ('a' <= i && i <= 'f') { v = i - 97 + 10; }
     else if ('A' <= i && i <= 'F') { v = i - 65 + 10; }
     else if ('0' <= i && i <= '9') { v = i - 48; }
+    else if (err) *err = true; 
     return v;
 }
 
-void SetAddr(char *out, uint8_t *addr) {
-
+bool SetAddr(char *in, uint8_t *addr) {
+bool err=false;
+    if (!addr || !in) return false;
     for (uint8_t i = 0; i < 8; i++) {
-        *addr = HEX2DEC(*out++) << 4;
-        *addr++ |= HEX2DEC(*out++);
+        *addr = HEX2DEC(*in++,&err) << 4;
+        *addr++ |= HEX2DEC(*in++,&err);
     }
+return !err;    
 }
 
 // chan is pointer to pointer to string
diff --git a/lighthub/utils.h b/lighthub/utils.h
index c155eec..ab0be5a 100644
--- a/lighthub/utils.h
+++ b/lighthub/utils.h
@@ -51,8 +51,8 @@ enum topicType {
 
 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);
+bool SetAddr(char * in,  uint8_t* addr);
+uint8_t HEX2DEC(char i, bool* err);
 long getInt(char ** chan);
 itemCmd getNumber(char ** chan);
 unsigned long  freeRam ();