diff --git a/2C-SDK-Espressif_IoT_SDK_Programming_Guide_v0.9.5.pdf b/2C-SDK-Espressif_IoT_SDK_Programming_Guide_v0.9.5.pdf
new file mode 100644
index 00000000..93a6fccf
Binary files /dev/null and b/2C-SDK-Espressif_IoT_SDK_Programming_Guide_v0.9.5.pdf differ
diff --git a/esp8266/webinterface.h b/esp8266/webinterface.h
index 51f7b70e..a4bef4f4 100644
--- a/esp8266/webinterface.h
+++ b/esp8266/webinterface.h
@@ -30,9 +30,12 @@ class WEBINTERFACE_CLASS
   public:
   WEBINTERFACE_CLASS (int port = 82);
   ESP8266WebServer WebServer;
+  void flushbuffer(); 
+  void add4send(const char * data2send, bool bimmediatsend = false);
   void urldecode(char *dst, const char *src);
   private:
-  
+  String buffer2send;
+  bool bsendingstarted; 
 };
 
 extern WEBINTERFACE_CLASS web_interface;