diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
new file mode 100644
index 0000000..9438ada
--- /dev/null
+++ b/.github/FUNDING.yml
@@ -0,0 +1 @@
+custom: https://www.buymeacoffee.com/xyzroe
diff --git a/src/Version.h b/src/Version.h
index c26ee3b..de17329 100644
--- a/src/Version.h
+++ b/src/Version.h
@@ -1,9 +1,9 @@
 
     // AUTO GENERATED FILE, DO NOT EDIT
     #ifndef VERSION
-        #define VERSION "0.5.5"
+        #define VERSION "0.5.6"
     #endif
     #ifndef BUILD_TIMESTAMP
-        #define BUILD_TIMESTAMP "2021-09-29 23:40:29.613671"
+        #define BUILD_TIMESTAMP "2021-10-07 16:36:33.921221"
     #endif
     
\ No newline at end of file
diff --git a/src/config.h b/src/config.h
index 3abfa81..e569abf 100644
--- a/src/config.h
+++ b/src/config.h
@@ -102,6 +102,7 @@ struct ConfigSettingsStruct
   bool mqttDiscovery;
   unsigned long mqttReconnectTime;
   unsigned long mqttHeartbeatTime;
+  int tempOffset;
 };
 
 struct InfosStruct
diff --git a/src/etc.cpp b/src/etc.cpp
index 9859b23..fc69b7f 100644
--- a/src/etc.cpp
+++ b/src/etc.cpp
@@ -51,6 +51,24 @@ void getReadableTime(String &readableTime, unsigned long beginTime)
 }
 
 void getCPUtemp(String &CPUtemp)
+{
+  if (!ConfigSettings.enableWiFi && !ConfigSettings.emergencyWifi)
+  {
+    //DEBUG_PRINTLN(F("enable wifi to enable temp sensor "));
+    WiFi.mode(WIFI_STA);
+  }
+  CPUtemp = (temprature_sens_read() - 32) / 1.8 - ConfigSettings.tempOffset;
+  //DEBUG_PRINT(F("CPU temp "));
+  //DEBUG_PRINTLN(CPUtemp);
+  if (!ConfigSettings.enableWiFi && !ConfigSettings.emergencyWifi)
+  {
+    WiFi.disconnect();
+    WiFi.mode(WIFI_OFF);
+    //DEBUG_PRINTLN(F("disable wifi"));
+  }
+}
+
+void getBlankCPUtemp(String &CPUtemp)
 {
   if (!ConfigSettings.enableWiFi && !ConfigSettings.emergencyWifi)
   {
diff --git a/src/etc.h b/src/etc.h
index 5d4f45b..aaa9587 100644
--- a/src/etc.h
+++ b/src/etc.h
@@ -10,7 +10,7 @@ uint8_t temprature_sens_read();
 uint8_t temprature_sens_read();
 
 void getCPUtemp(String &CPUtemp);
-
+void getBlankCPUtemp(String &CPUtemp);
 //void parse_ip_address(IPAddress &ip, const char *str)
 void zigbeeEnableBSL();
 void zigbeeRestart();
diff --git a/src/html.h b/src/html.h
index 8562d1e..a93e14e 100644
--- a/src/html.h
+++ b/src/html.h
@@ -116,6 +116,7 @@ const char HTTP_SERIAL[] PROGMEM =
 const char HTTP_HELP[] PROGMEM =
     "<h2>Help</h2>"
     "<div id='main' class='col-sm-9'>"
+    /*
     "<div id='help_btns'>"
     "<a href='#' class='btn btn-primary'><i class='glyphicon glyphicon-cog'></i>Primary</a>"
     "<a href='#' class='btn btn-secondary'><i class='glyphicon glyphicon-file'></i>Secondary</a>"
@@ -123,6 +124,7 @@ const char HTTP_HELP[] PROGMEM =
     "<a href='#' class='btn btn-danger'><i class='glyphicon glyphicon-lock'></i>Danger</a>"
     "<a href='#' class='btn btn-warning'><i class='glyphicon glyphicon-tags'></i>Warning</a>"
     "</div>"
+    */
     "<script src='https://cdn.jsdelivr.net/npm/@webcomponents/webcomponentsjs@2/webcomponents-loader.min.js'></script>"
     "<script type='module' src='https://cdn.jsdelivr.net/gh/zerodevx/zero-md@1/src/zero-md.min.js'></script>"
     "<zero-md src='https://raw.githubusercontent.com/xyzroe/ZigStarGW-FW/main/README.md'></zero-md>"
diff --git a/src/main.cpp b/src/main.cpp
index 899879e..00e7659 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -161,7 +161,12 @@ bool loadSystemVar()
   {
     DEBUG_PRINTLN(F("failed open. try to write defaults"));
 
-    String StringConfig = "{\"board\":1,\"emergencyWifi\":0}";
+    String CPUtemp;
+    getBlankCPUtemp(CPUtemp);
+    int correct = CPUtemp.toInt() - 30;
+    String tempOffset =  String(correct);
+
+    String StringConfig = "{\"board\":1,\"emergencyWifi\":0,\"tempOffset\":" + tempOffset + "}";
     DEBUG_PRINTLN(StringConfig);
     DynamicJsonDocument doc(1024);
     deserializeJson(doc, StringConfig);
@@ -184,7 +189,23 @@ bool loadSystemVar()
 
   ConfigSettings.board = (int)doc["board"];
   ConfigSettings.emergencyWifi = (int)doc["emergencyWifi"];
+  ConfigSettings.tempOffset = (int)doc["tempOffset"];
+  if (!ConfigSettings.tempOffset){
+    DEBUG_PRINTLN(F("no tempOffset in system.json"));
+    configFile.close();
 
+    String CPUtemp;
+    getBlankCPUtemp(CPUtemp);
+    int correct = CPUtemp.toInt() - 30;
+    String tempOffset =  String(correct);
+    doc["tempOffset"] = int(tempOffset.toInt());
+
+    configFile = LITTLEFS.open(path, FILE_WRITE);
+    serializeJson(doc, configFile);
+    configFile.close();
+    DEBUG_PRINTLN(F("saved tempOffset in system.json"));
+    ConfigSettings.tempOffset = int(tempOffset.toInt());
+  }
   configFile.close();
   return true;
 }
@@ -310,7 +331,7 @@ bool loadConfigSerial()
   File configFile = LITTLEFS.open(path, FILE_READ);
   if (!configFile)
   {
-    String StringConfig = "{\"baud\":115200,\"port\":4444}";
+    String StringConfig = "{\"baud\":115200,\"port\":6638}";
 
     writeDefultConfig(path, StringConfig);
   }
@@ -394,14 +415,14 @@ void setupWifiAP()
 
   for (int i = 0; i < AP_NameString.length(); i++)
     AP_NameChar[i] = AP_NameString.charAt(i);
-
+/*
   String WIFIPASSSTR = "ZigStar1";
   char WIFIPASS[WIFIPASSSTR.length() + 1];
   memset(WIFIPASS, 0, WIFIPASSSTR.length() + 1);
   for (int i = 0; i < WIFIPASSSTR.length(); i++)
     WIFIPASS[i] = WIFIPASSSTR.charAt(i);
-
-  WiFi.softAP(AP_NameChar, WIFIPASS);
+*/
+  WiFi.softAP(AP_NameChar); //, WIFIPASS);
   WiFi.setSleep(false);
 }
 
diff --git a/tools/version b/tools/version
index 389facc..ad83b1b 100644
--- a/tools/version
+++ b/tools/version
@@ -1 +1 @@
-0.5.5
\ No newline at end of file
+0.5.6
\ No newline at end of file