diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ab5c51..dbd18c9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1 +1 @@
-idf_component_register(SRCS "main.c" INCLUDE_DIRS "include")
\ No newline at end of file
+idf_component_register(SRCS "zh_ota_server.c" INCLUDE_DIRS "include" REQUIRES app_update esp_http_server EMBED_FILES "zh_ota_server.html")
\ No newline at end of file
diff --git a/README.md b/README.md
index 3df3e4d..7f5aa61 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,64 @@
-# esp_component_template
+# ESP32 ESP-IDF component for simple OTA server
-esp_component_template
\ No newline at end of file
+## Tested on
+
+1. [ESP32 ESP-IDF v5.5.3](https://docs.espressif.com/projects/esp-idf/en/v5.5.3/esp32/index.html)
+
+## SAST Tools
+
+[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
+
+## Using
+
+In an existing project, run the following command to install the component:
+
+```text
+cd ../your_project/components
+git clone http://git.zh.com.ru/esp_components/zh_ota_server
+```
+
+In the application, add the component:
+
+```c
+#include "zh_ota_server.h"
+```
+
+## Example
+
+OTA server by address http://192.168.4.1/ota
+
+```c
+#include "nvs_flash.h"
+#include "esp_wifi.h"
+#include "zh_ota_server.h"
+
+#define WIFI_SSID "SSID"
+#define WIFI_PASS "password"
+
+static httpd_handle_t http_server_handle = NULL;
+
+void app_main(void)
+{
+ esp_log_level_set("zh_ota_server", ESP_LOG_ERROR);
+ nvs_flash_init();
+ esp_event_loop_create_default();
+ esp_netif_init();
+ esp_netif_create_default_wifi_ap();
+ wifi_init_config_t wifi_config = WIFI_INIT_CONFIG_DEFAULT();
+ esp_wifi_init(&wifi_config);
+ wifi_config_t ap_config = {
+ .ap = {
+ .ssid = WIFI_SSID,
+ .password = WIFI_PASS,
+ .max_connection = 4,
+ .authmode = WIFI_AUTH_WPA2_PSK,
+ },
+ };
+ esp_wifi_set_mode(WIFI_MODE_AP);
+ esp_wifi_set_config(WIFI_IF_AP, &ap_config);
+ esp_wifi_start();
+ httpd_config_t config = HTTPD_DEFAULT_CONFIG();
+ httpd_start(&http_server_handle, &config);
+ zh_ota_server_init(http_server_handle, "/ota");
+}
+```
diff --git a/component.mk b/component.mk
deleted file mode 100644
index e69de29..0000000
diff --git a/include/main.h b/include/main.h
deleted file mode 100644
index e69de29..0000000
diff --git a/include/zh_ota_server.h b/include/zh_ota_server.h
new file mode 100644
index 0000000..44e46df
--- /dev/null
+++ b/include/zh_ota_server.h
@@ -0,0 +1,28 @@
+/**
+ * @file zh_ota_server.h
+ */
+
+#pragma once
+
+#include "esp_ota_ops.h"
+#include "esp_log.h"
+#include "esp_http_server.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+ /**
+ * @brief Start OTA server.
+ *
+ * @param[in] server HTTP server handle.
+ * @param[in] path OTA server path.
+ *
+ * @return ESP_OK if success or an error code otherwise.
+ */
+ esp_err_t zh_ota_server_init(httpd_handle_t server, const char *path);
+
+#ifdef __cplusplus
+}
+#endif
\ No newline at end of file
diff --git a/main.c b/main.c
deleted file mode 100644
index e69de29..0000000
diff --git a/version.txt b/version.txt
index e69de29..afaf360 100644
--- a/version.txt
+++ b/version.txt
@@ -0,0 +1 @@
+1.0.0
\ No newline at end of file
diff --git a/zh_ota_server.c b/zh_ota_server.c
new file mode 100644
index 0000000..1e99271
--- /dev/null
+++ b/zh_ota_server.c
@@ -0,0 +1,100 @@
+#include "zh_ota_server.h"
+
+static const char *TAG = "zh_ota_server";
+
+#define ZH_LOGI(msg, ...) ESP_LOGI(TAG, msg, ##__VA_ARGS__)
+#define ZH_LOGE(msg, err, ...) ESP_LOGE(TAG, "[%s:%d:%s] " msg, __FILE__, __LINE__, esp_err_to_name(err), ##__VA_ARGS__)
+
+#define ZH_ERROR_CHECK(cond, err, cleanup, msg, ...) \
+ if (!(cond)) \
+ { \
+ ZH_LOGE(msg, err, ##__VA_ARGS__); \
+ cleanup; \
+ return err; \
+ }
+
+#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+
+static char *_ota_path = NULL;
+static char *_ota_ws_path = "/zh_ota_server";
+
+static esp_err_t _ota_page_handler(httpd_req_t *req);
+static esp_err_t _ota_ws_page_handler(httpd_req_t *req);
+
+extern const uint8_t zh_ota_server_html_start[] asm("_binary_zh_ota_server_html_start");
+extern const uint8_t zh_ota_server_html_end[] asm("_binary_zh_ota_server_html_end");
+
+httpd_uri_t _ota_page = {
+ .uri = NULL,
+ .method = HTTP_GET,
+ .handler = _ota_page_handler,
+ .user_ctx = NULL};
+
+httpd_uri_t _ota_page_ws = {
+ .uri = NULL,
+ .method = HTTP_POST,
+ .handler = _ota_ws_page_handler,
+ .user_ctx = NULL};
+
+esp_err_t zh_ota_server_init(httpd_handle_t server, const char *path)
+{
+ ZH_LOGI("OTA server initialization started.");
+ ZH_ERROR_CHECK(server != NULL && path != NULL, ESP_ERR_INVALID_ARG, NULL, "OTA server initialization failed. Invalid argument.");
+ _ota_path = (char *)heap_caps_calloc(1, strlen(path), MALLOC_CAP_8BIT);
+ strcpy(_ota_path, path);
+ _ota_page.uri = _ota_path;
+ _ota_page_ws.uri = _ota_ws_path;
+ esp_err_t err = httpd_register_uri_handler(server, &_ota_page);
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "OTA server initialization failed. Register uri handler failed.");
+ err = httpd_register_uri_handler(server, &_ota_page_ws);
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "OTA server initialization failed. Register uri handler failed.");
+ ZH_LOGI("OTA server initialization completed successfully.");
+ return ESP_OK;
+}
+
+esp_err_t _ota_page_handler(httpd_req_t *req)
+{
+ esp_err_t err = httpd_resp_send(req, (const char *)zh_ota_server_html_start, zh_ota_server_html_end - zh_ota_server_html_start);
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error.");
+ return ESP_OK;
+}
+
+esp_err_t _ota_ws_page_handler(httpd_req_t *req) // -V2008
+{
+ char buf[1000] = {0};
+ esp_ota_handle_t ota_handle = {0};
+ int remaining = req->content_len;
+ const esp_partition_t *ota_partition = esp_ota_get_next_update_partition(NULL);
+ ZH_ERROR_CHECK(ota_partition != NULL, ESP_FAIL, NULL, "OTA get next update partition failed.");
+ esp_err_t err = esp_ota_begin(ota_partition, OTA_SIZE_UNKNOWN, &ota_handle);
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "OTA begin failed.");
+ while (remaining > 0)
+ {
+ int recv_len = httpd_req_recv(req, buf, MIN(remaining, sizeof(buf)));
+ if (recv_len == HTTPD_SOCK_ERR_TIMEOUT)
+ {
+ continue;
+ }
+ else if (recv_len <= 0)
+ {
+ err = httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Protocol Error");
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error.");
+ return ESP_FAIL;
+ }
+ err = esp_ota_write(ota_handle, (const void *)buf, recv_len);
+ ZH_ERROR_CHECK(err == ESP_OK, err, err = httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Flash error.");
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error."), "OTA write failed.");
+ remaining -= recv_len;
+ }
+ err = esp_ota_end(ota_handle);
+ ZH_ERROR_CHECK(err == ESP_OK, err, err = httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Validation / Activation Error.");
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error."), "OTA end failed.");
+ err = esp_ota_set_boot_partition(ota_partition);
+ ZH_ERROR_CHECK(err == ESP_OK, err, err = httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR, "Validation / Activation Error.");
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error."), "OTA set boot partition failed.");
+ err = httpd_resp_sendstr(req, "Firmware update complete, rebooting now!\n");
+ ZH_ERROR_CHECK(err == ESP_OK, err, NULL, "HTTP server internal error.");
+ vTaskDelay(500 / portTICK_PERIOD_MS);
+ esp_restart();
+ return ESP_OK;
+}
\ No newline at end of file
diff --git a/zh_ota_server.html b/zh_ota_server.html
new file mode 100644
index 0000000..bf82512
--- /dev/null
+++ b/zh_ota_server.html
@@ -0,0 +1,79 @@
+
+
+
+
+
+
+
+ ESP32 OTA Server
+
+
+
+
+
+ ESP32 OTA Server
+
+
+
+
+
+