diff --git a/example_ota_ws/main/CMakeLists.txt b/example_ota_ws/main/CMakeLists.txt
index 3b5187e..f1bbcd1 100644
--- a/example_ota_ws/main/CMakeLists.txt
+++ b/example_ota_ws/main/CMakeLists.txt
@@ -3,10 +3,13 @@
 idf_component_register(
                     SRCS 
                       example_ota_ws_update.c
+                      example_echo_ws_server.c
                     REQUIRES
                       ota_ws_update
-                      prv_Wifi_Connect
+                      nvs_wifi_connect
                       esp_http_server
                       mdns
                       esp_wifi
+                    EMBED_FILES 
+                      example_echo_ws_server.html
 )
\ No newline at end of file
diff --git a/example_ota_ws/main/example_echo_ws_server.c b/example_ota_ws/main/example_echo_ws_server.c
new file mode 100644
index 0000000..89f433a
--- /dev/null
+++ b/example_ota_ws/main/example_echo_ws_server.c
@@ -0,0 +1,176 @@
+/* WebSocket Echo Server Example
+
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#include <esp_wifi.h>
+#include <esp_event.h>
+#include <esp_log.h>
+#include <esp_system.h>
+#include <sys/param.h>
+#include "esp_netif.h"
+
+#include <esp_http_server.h>
+
+#include "nvs_wifi_connect.h"
+#include "ota_ws_update.h"
+
+/* A simple example that demonstrates using websocket echo server
+ */
+static const char *TAG = "example_ws_echo_server";
+
+
+/*
+ * This handler echos back the received ws data
+ * and triggers an async send if certain message received
+ */
+static esp_err_t echo_handler(httpd_req_t *req)
+{
+    if (req->method == HTTP_GET) {
+        ESP_LOGI(TAG, "Handshake done, the new connection was opened");
+        return ESP_OK;
+    }
+    httpd_ws_frame_t ws_pkt;
+    uint8_t *buf = NULL;
+    memset(&ws_pkt, 0, sizeof(httpd_ws_frame_t));
+    ws_pkt.type = HTTPD_WS_TYPE_TEXT;
+    /* Set max_len = 0 to get the frame len */
+    esp_err_t ret = httpd_ws_recv_frame(req, &ws_pkt, 0);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "httpd_ws_recv_frame failed to get frame len with %d", ret);
+        return ret;
+    }
+    //ESP_LOGI(TAG, "frame len is %d", ws_pkt.len);
+    if (ws_pkt.len) {
+        /* ws_pkt.len + 1 is for NULL termination as we are expecting a string */
+        buf = calloc(1, ws_pkt.len + 1);
+        if (buf == NULL) {
+            ESP_LOGE(TAG, "Failed to calloc memory for buf");
+            return ESP_ERR_NO_MEM;
+        }
+        ws_pkt.payload = buf;
+        /* Set max_len = ws_pkt.len to get the frame payload */
+        ret = httpd_ws_recv_frame(req, &ws_pkt, ws_pkt.len);
+        if (ret != ESP_OK) {
+            ESP_LOGE(TAG, "httpd_ws_recv_frame failed with %d", ret);
+            free(buf);
+            return ret;
+        }
+        //ESP_LOGI(TAG, "Got packet with message: %s", ws_pkt.payload);
+    }
+    //ESP_LOGI(TAG, "Packet type: %d", ws_pkt.type);
+
+    ret = httpd_ws_send_frame(req, &ws_pkt);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "httpd_ws_send_frame failed with %d", ret);
+    }
+    free(buf);
+    return ret;
+}
+
+static const httpd_uri_t example_ws = {
+        .uri        = "/ws",
+        .method     = HTTP_GET,
+        .handler    = echo_handler,
+        .user_ctx   = NULL,
+        .is_websocket = true
+};
+
+static esp_err_t get_handler(httpd_req_t *req)
+{
+    extern const unsigned char example_echo_ws_server_html_start[] asm("_binary_example_echo_ws_server_html_start");
+    extern const unsigned char example_echo_ws_server_html_end[] asm("_binary_example_echo_ws_server_html_end");
+    const size_t example_echo_ws_server_html_size = (example_echo_ws_server_html_end - example_echo_ws_server_html_start);
+
+    httpd_resp_send_chunk(req, (const char *)example_echo_ws_server_html_start, example_echo_ws_server_html_size);
+    httpd_resp_sendstr_chunk(req, NULL);
+    return ESP_OK;
+}
+static const httpd_uri_t example_gh = {
+    .uri = "/",
+    .method = HTTP_GET,
+    .handler = get_handler,
+    .user_ctx = NULL};
+
+esp_err_t example_register_uri_handler(httpd_handle_t server);
+
+static httpd_handle_t start_webserver(void)
+{
+    httpd_handle_t server = NULL;
+    httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+
+    // Start the httpd server
+    ESP_LOGI(TAG, "Starting server on port: '%d'", config.server_port);
+    if (httpd_start(&server, &config) == ESP_OK) {
+        // Registering the ws handler
+        ESP_LOGI(TAG, "Registering URI handlers");
+        example_register_uri_handler(server);
+        nvs_wifi_connect_register_uri_handler(server);
+        ota_ws_register_uri_handler(server);
+        return server;
+    }
+
+    ESP_LOGI(TAG, "Error starting server!");
+    return NULL;
+}
+
+static esp_err_t stop_webserver(httpd_handle_t server)
+{
+    // Stop the httpd server
+    return httpd_stop(server);
+}
+
+static void disconnect_handler(void* arg, esp_event_base_t event_base,
+                               int32_t event_id, void* event_data)
+{
+    httpd_handle_t* server = (httpd_handle_t*) arg;
+    if (*server) {
+        ESP_LOGI(TAG, "Stopping webserver");
+        if (stop_webserver(*server) == ESP_OK) {
+            *server = NULL;
+        } else {
+            ESP_LOGE(TAG, "Failed to stop http server");
+        }
+    }
+}
+
+static void connect_handler(void* arg, esp_event_base_t event_base,
+                            int32_t event_id, void* event_data)
+{
+    httpd_handle_t* server = (httpd_handle_t*) arg;
+    if (*server == NULL) {
+        ESP_LOGI(TAG, "Starting webserver");
+        *server = start_webserver();
+    }
+}
+
+
+void example_echo_ws_server(void)
+{
+    static httpd_handle_t server = NULL;
+
+    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server));
+    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, &server));
+    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_STACONNECTED, &connect_handler, &server));
+    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_AP_STADISCONNECTED, &disconnect_handler, &server));
+
+    /* Start the server for the first time */
+    server = start_webserver();
+}
+
+esp_err_t example_register_uri_handler(httpd_handle_t server)
+{
+    esp_err_t ret = ESP_OK;
+    ret = httpd_register_uri_handler(server, &example_gh);
+    if (ret)
+        goto _ret;
+    ret = httpd_register_uri_handler(server, &example_ws);
+    if (ret)
+        goto _ret;
+_ret:
+    return ret;
+}
diff --git a/example_ota_ws/main/example_echo_ws_server.html b/example_ota_ws/main/example_echo_ws_server.html
new file mode 100644
index 0000000..bbe8257
--- /dev/null
+++ b/example_ota_ws/main/example_echo_ws_server.html
@@ -0,0 +1,131 @@
+<!DOCTYPE html>
+
+<html lang="ru">
+
+<head>
+    <title>Example Websocket Echo Server</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
+    <style>
+        .column {
+            float: left;
+            width: 100%;
+            margin-top: 2px;
+            margin-bottom: 2px;
+        }
+
+        .btn {
+            float: left;
+            width: 100%;
+            margin: 2px;
+
+        }
+
+        .cl1 {
+            float: left;
+            width: 100%;
+            margin: 2px;
+            margin-top: 2px;
+            margin-bottom: 2px;
+        }
+
+        .cl01 {
+            float: left;
+            width: 100%;
+            text-align: center;
+            margin-top: 2px;
+            margin-bottom: 2px;
+        }
+
+        .cl02 {
+            float: left;
+            width: 100%;
+            text-align: center;
+            margin-top: 2px;
+            margin-bottom: 2px;
+        }
+
+        .hdr {
+            float: left;
+            width: 100%;
+            text-align: center;
+            color: white;
+            background-color: blue;
+            padding: 5px;
+            margin: 5px;
+        }
+
+        .logstr {
+            width: 100%;
+            float: left;
+        }
+    </style>
+
+</head>
+
+<body>
+    <div class="hdr">Example Websocket Echo Server </div>
+    <div class="column">
+        <button class="btn" id="goWifi" onclick="window.location.href = '/wifi'" >Set WiFi SSID/Password -> /wifi</button>
+    </div>
+    <div class="column">
+        <button class="btn" id="goOta" onclick="window.location.href = '/ota'" >Ota update -> /ota</button>
+    </div>
+
+        <div class="cl1">
+            <label class="cl01" for="exampleSend">Input string for Echo</label>
+            <input class="cl02" type="text" id="exampleSend" placeholder="input">
+        </div>
+
+        <div class="cl1">
+            <label class="cl01" for="exampleEcho">Echo string</label>
+            <input class="cl02" type="text" id="exampleEcho" placeholder="output">
+        </div>
+
+    <script>
+        let exSend = document.getElementById("exampleSend");
+        exSend.addEventListener("input", function (e) {
+            //console.log(exSend.id + " " + exSend.value  );
+            socket.send(JSON.stringify({ name: exSend.id, msg: exSend.value }));
+        });
+        function receiveWsData(data) {
+            //console.log(data);
+            try {
+                let obj = JSON.parse(data);
+                let exEcho = document.getElementById("exampleEcho");
+                exEcho.value = obj.msg;
+            }
+            catch {
+                console.log(data + " catch");
+            }
+        };
+    </script>
+
+    <script>  // Прием, обработка и отправка данных в WS
+    </script>
+
+    <script> // основной старт скрипта, открыть сокет
+        // создать сокет по адресу
+        let wsHostStr = "ws://" + document.location.host + document.location.pathname;
+        wsHostStr += (document.location.pathname == '/') ? "ws" : "/ws";
+        var socket = new WebSocket(wsHostStr);
+    </script>
+
+    <script> // события WS
+        socket.onopen = function () {
+            console.log("connect");
+        };
+        socket.onclose = function (event) {
+            console.log("close");
+        };
+        socket.onerror = function () {
+            console.log("error");
+        };
+        socket.onmessage = function (event) {
+            receiveWsData(event.data);
+        };
+    </script>
+
+</body>
+
+</html>
\ No newline at end of file
diff --git a/example_ota_ws/main/example_ota_ws_update.c b/example_ota_ws/main/example_ota_ws_update.c
index d95d1ed..772f860 100644
--- a/example_ota_ws/main/example_ota_ws_update.c
+++ b/example_ota_ws/main/example_ota_ws_update.c
@@ -13,12 +13,16 @@
 #include "esp_log.h"
 #include "esp_ota_ops.h"
 #include "esp_wifi.h"
+#include "esp_http_server.h"
 
 // #include <esp_log.h>
 
-#include "prv_wifi_connect.h"
+#include "nvs_wifi_connect.h"
 #include "ota_ws_update.h"
 
+extern esp_err_t example_register_uri_handler(httpd_handle_t server);
+void example_echo_ws_server(void);
+
 //static const char *TAG = "ota_ws";
 
 #define MDNS
@@ -45,13 +49,16 @@ static void initialise_mdns(void)
 }
 #endif // MDNS
 
+
+
 void app_main(void)
 {
-    prv_wifi_connect(); // return with error ?
+    nvs_wifi_connect(); // return with error ?
 
 #ifdef MDNS
     initialise_mdns();
 #endif // MDNS
 
-    prv_start_http_server(PRV_MODE_STAY_ACTIVE, ota_ws_register_uri_handler); // run server
+    example_echo_ws_server();
+    //prv_start_http_server(PRV_MODE_STAY_ACTIVE, ota_ws_register_uri_handler); // run server
 }
diff --git a/source/ota_ws_update.html b/source/ota_ws_update.html
index 1d00c7c..e1cf70f 100644
--- a/source/ota_ws_update.html
+++ b/source/ota_ws_update.html
@@ -247,11 +247,11 @@
             console.log("connect ws");
         };
         socket.onclose = function (event) {
-            document.location.reload();
+            //document.location.reload();
             console.log("close ws");
         };
         socket.onerror = function () {
-            document.location.reload();
+            //document.location.reload();
             console.log("error ws");
         };
         socket.onmessage = function (event) {