diff --git a/html/acc.html b/html/acc.html
index 482e394..44f636d 100644
--- a/html/acc.html
+++ b/html/acc.html
@@ -63,7 +63,7 @@
             
 
             function calibrateDevice() {
-                var calibrating = 5;
+                var calibrating = 10;
                 socket.send(JSON.stringify(calibrating));
                 document.getElementById("calibrate_text").innerHTML = "Калибровка в течении 10 секунд - Сделайте несколько оборотов устройством перпендикулярно оси Х";
             }
diff --git a/src/html.h b/src/html.h
index 6d8b085..eb1d4e6 100644
--- a/src/html.h
+++ b/src/html.h
@@ -5,7 +5,8 @@ enum parts
     HTML_BEGIN,
     HTML_END,
     STYLE,
-    SCRIPT
+    SCRIPT, 
+    ACC_CALIBRATE
 };
 
 const char html_begin[] PROGMEM = {
@@ -78,6 +79,11 @@ const char script[] PROGMEM = {
                 }\n\
                 context.stroke();\n\
             };\n\
+            function calibrateDevice() {\n\
+                var calibrating = 10;\n\
+                socket.send(JSON.stringify(calibrating));\n\
+                document.getElementById(\"calibrate_text\").innerHTML = \"Калибровка в течении 10 секунд - Сделайте несколько оборотов устройством перпендикулярно оси Х\";\n\
+            }\n\
         </script>\n\
         "};
 
@@ -89,6 +95,10 @@ const char html_end[] PROGMEM = {
     </body>\n\
     </html>\n"};
 
+const char acc_calibrate[] PROGMEM = {
+    "<p id=\"calibrate_text\" onclick=\"calibrateDevice()\">Устройство не откалибровано.</p>\n\
+    <button onclick=\"calibrateDevice()\">Откалибровать</button>"};
+
 static int getHtml(parts p, char &adr, uint16_t buf_size, uint16_t bias)
 {
     char *buffer = &adr;
@@ -108,6 +118,9 @@ static int getHtml(parts p, char &adr, uint16_t buf_size, uint16_t bias)
     case SCRIPT:
         html_part = script;
         break;
+    case ACC_CALIBRATE:
+        html_part = acc_calibrate;
+        break;
     }
     length = strlen_P(html_part);
     for (int i = 0; i != length; i++)
diff --git a/src/main.cpp b/src/main.cpp
index 5b476b3..e4aa1c8 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -18,6 +18,12 @@ Graph graphAcc = Graph(200, 50);
 
 long int lastDataSend = 0;
 
+int timeOfCal = 0;
+bool accCalibrated = false;
+int accCalRemains = 0;
+int accMax1 = 0;
+int accMax2 = 0;
+
 WebSocketsServer webSocket = WebSocketsServer(81);
 
 void handleAccelerometer()
@@ -29,7 +35,7 @@ void handleAccelerometer()
 
     bias += getHtml(HTML_BEGIN, *html_code, arr_size, 0);
     bias += getHtml(STYLE, *html_code, arr_size, bias);
-    bias += getHtml(SCRIPT, *html_code, arr_size, bias);
+        bias += getHtml(SCRIPT, *html_code, arr_size, bias);
     bias += getHtml(HTML_END, *html_code, arr_size, bias);
 
     server.send(200, "text/html", html_code);
@@ -112,6 +118,14 @@ void sendAccelerometerData() {
     }
 }
 
+void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t length) {
+    switch(type) {
+        case WStype_TEXT:
+            timeOfCal = (int) *payload;
+            Serial.printf("[%u] get Text: %d\n", num, timeOfCal);
+    }
+}
+
 
 void setup(void)
 {
@@ -136,6 +150,7 @@ void setup(void)
     Serial.println("HTTP server started");
     
     webSocket.begin();
+    webSocket.onEvent(webSocketEvent);
 }
 
 void loop(void)