diff --git a/main/ca_cert.pem b/main/ca_cert.pem
index 7eff939..bd2b618 100644
--- a/main/ca_cert.pem
+++ b/main/ca_cert.pem
@@ -1,22 +1,22 @@
 -----BEGIN CERTIFICATE-----
-MIIDmTCCAoGgAwIBAgIUd5qKY6blEffPyHQZnmQfxkcCO7AwDQYJKoZIhvcNAQEL
-BQAwXDELMAkGA1UEBhMCRlIxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
+MIIDmTCCAoGgAwIBAgIUJyG8nVHyoUV/0lOqRtSCjVnEtfYwDQYJKoZIhvcNAQEL
+BQAwXDELMAkGA1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoM
 GEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDEVMBMGA1UEAwwMMTkyLjE2OC4wLjI4
-MB4XDTI0MTExMzE4MjYxOVoXDTI1MTExMzE4MjYxOVowXDELMAkGA1UEBhMCRlIx
+MB4XDTI1MDUwNzA3NTMzMVoXDTI2MDUwNzA3NTMzMVowXDELMAkGA1UEBhMCQVUx
 EzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0IFdpZGdpdHMg
 UHR5IEx0ZDEVMBMGA1UEAwwMMTkyLjE2OC4wLjI4MIIBIjANBgkqhkiG9w0BAQEF
-AAOCAQ8AMIIBCgKCAQEA8lKPcpJ6/FhrI+E8fzR93N/XIfEW7GpFa+KNp+DK9DGS
-hHno2yVGXNdUFRQEL/2pL8aiZzZ7xGMubzEIr1dlHrb/PplGRTXCxQWnDJDsOu4w
-7TbzjYxDhgMwXhSGuFlMexFBh+W9qcO85l4wNSOhHusyf7XZaPAd3NGmK4XsoeXJ
-DSROJLLpvyZM3yt1kuC3GTWSqUe4Ldv+kaAfyW+X/PJ7Tgb6frLGNCs5A0zLhFxb
-FS2omnqX6+H2Bjvk3nCQr85zcuIrnXQ+Hy58MayS+dRqPTSNw7RqRVvrGUuQuj5y
-/ruAVLjG6F9wTZZFJ8Nk2veuFxIG+8ADpglWoYrokQIDAQABo1MwUTAdBgNVHQ4E
-FgQUUa64jnTc+VqWQB93Fp/yPuirm2cwHwYDVR0jBBgwFoAUUa64jnTc+VqWQB93
-Fp/yPuirm2cwDwYDVR0TAQH/BAUwAwEB/zANBgkqhkiG9w0BAQsFAAOCAQEAnqg9
-DeBozovXmwcbDTlTqz1b5LJ3Xz4mhUnEssmlDvvlXMqL1CjeXDKgOXtkWaomTJNO
-MfMTmkkKg2lomNe2O84nUyPJnHYle5cbxZXAvbkmsi6R95lXFf5+bHAtU05TFYKc
-BWMPB3Vwym9qrAc8G1LPr05LYgrJsQ9xkf0pVR7hrjgu9k6ElNAQSiH4dlyK4b/T
-12U4zBawZNv3f6OnKOTq2NuwwzxWSwRRbEGUf0qO6Z8LNsj7yvmp2ImfN1e3a39p
-+WmxJkHBzg5LxUon8jtiZLKeAPNlAPvKTs/4umE0LdZnsdlYrNR+kFeMMurxHvfZ
-ykxPELUVUWEgv/IRbA==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 -----END CERTIFICATE-----
diff --git a/main/main.c b/main/main.c
index 81b84c6..f334fdd 100644
--- a/main/main.c
+++ b/main/main.c
@@ -157,9 +157,32 @@ esp_err_t _ota_http_event_handler(esp_http_client_event_t *evt)
 
 extern const uint8_t server_cert_pem_start[] asm("_binary_ca_cert_pem_start");
 extern const uint8_t server_cert_pem_end[] asm("_binary_ca_cert_pem_end");
+static esp_err_t validate_image_header(esp_app_desc_t *new_app_info)
+{
+    if (new_app_info == NULL) {
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    const esp_partition_t *running = esp_ota_get_running_partition();
+    esp_app_desc_t running_app_info;
+    if (esp_ota_get_partition_description(running, &running_app_info) == ESP_OK) {
+        ESP_LOGI(TAG, "Running firmware version: %s", running_app_info.version);
+    }
+
+#ifndef CONFIG_EXAMPLE_SKIP_VERSION_CHECK
+    if (memcmp(new_app_info->version, running_app_info.version, sizeof(new_app_info->version)) == 0) {
+        ESP_LOGW(TAG, "Current running version is the same as a new. We will not continue the update.");
+        return ESP_FAIL;
+    }
+#endif
+
+    return ESP_OK;
+}
+
 
 void simple_ota_example_task(void *pvParameter)
 {
+    esp_err_t ota_finish_err = ESP_OK;
     ESP_LOGI(TAG, "Starting OTA example task");
 #ifdef CONFIG_EXAMPLE_FIRMWARE_UPGRADE_BIND_IF
     esp_netif_t *netif = get_example_netif_from_desc(bind_interface_name);
@@ -172,7 +195,7 @@ void simple_ota_example_task(void *pvParameter)
     ESP_LOGI(TAG, "Bind interface name is %s", ifr.ifr_name);
 #endif
     esp_http_client_config_t config = {
-        .url = "http://192.168.0.28:8070/rgb_lcd.bin",
+        .url = "https://192.168.0.28:8070/rgb_lcd.bin",
         .timeout_ms = 30000,
         .buffer_size = 6144,
         .buffer_size_tx = 6144, //TX Buffer, Main Buffer
@@ -206,18 +229,59 @@ void simple_ota_example_task(void *pvParameter)
         .http_config = &config,
     };
     ESP_LOGI(TAG, "Attempting to download update from %s", config.url);
-    esp_err_t ret = esp_https_ota(&ota_config);
-    if (ret == ESP_OK) {
-        ESP_LOGI(TAG, "OTA Succeed, Rebooting...");
-        esp_restart();
-    } else {
-        ESP_LOGE(TAG, "Firmware upgrade failed");
+    esp_https_ota_handle_t https_ota_handle = NULL;
+    esp_err_t err = esp_https_ota_begin(&ota_config, &https_ota_handle);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "ESP HTTPS OTA Begin failed");
+        vTaskDelete(NULL);
     }
-    while (1) {
-        vTaskDelay(1000 / portTICK_PERIOD_MS);
-    }
-}
 
+    esp_app_desc_t app_desc;
+    err = esp_https_ota_get_img_desc(https_ota_handle, &app_desc);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "esp_https_ota_get_img_desc failed");
+        goto ota_end;
+    }
+    err = validate_image_header(&app_desc);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "image header verification failed");
+        goto ota_end;
+    }
+
+    while (1) {
+        err = esp_https_ota_perform(https_ota_handle);
+        if (err != ESP_ERR_HTTPS_OTA_IN_PROGRESS) {
+            break;
+        }
+        // esp_https_ota_perform returns after every read operation which gives user the ability to
+        // monitor the status of OTA upgrade by calling esp_https_ota_get_image_len_read, which gives length of image
+        // data read so far.
+        ESP_LOGD(TAG, "Image bytes read: %d", esp_https_ota_get_image_len_read(https_ota_handle));
+    }
+
+    if (esp_https_ota_is_complete_data_received(https_ota_handle) != true) {
+        // the OTA image was not completely received and user can customise the response to this situation.
+        ESP_LOGE(TAG, "Complete data was not received.");
+    } else {
+        ota_finish_err = esp_https_ota_finish(https_ota_handle);
+        if ((err == ESP_OK) && (ota_finish_err == ESP_OK)) {
+            ESP_LOGI(TAG, "ESP_HTTPS_OTA upgrade successful. Rebooting ...");
+            vTaskDelay(1000 / portTICK_PERIOD_MS);
+            esp_restart();
+        } else {
+            if (ota_finish_err == ESP_ERR_OTA_VALIDATE_FAILED) {
+                ESP_LOGE(TAG, "Image validation failed, image is corrupted");
+            }
+            ESP_LOGE(TAG, "ESP_HTTPS_OTA upgrade failed 0x%x", ota_finish_err);
+            vTaskDelete(NULL);
+        }
+    }
+
+ota_end:
+    esp_https_ota_abort(https_ota_handle);
+    ESP_LOGE(TAG, "ESP_HTTPS_OTA upgrade failed");
+    vTaskDelete(NULL);
+}
 
     am2302_handle_t sensor = NULL;
 
@@ -579,7 +643,11 @@ void app_main(void)
 
     xTaskCreate(&readTempHumid, "read_temp_task", 8192, NULL, 5, NULL);
 */
-    //xTaskCreate(&simple_ota_example_task, "ota_example_task", 8192, NULL, 5, NULL);
+        /* Ensure to disable any WiFi power save mode, this allows best throughput
+     * and hence timings for overall OTA operation.
+     */
+    esp_wifi_set_ps(WIFI_PS_NONE);
+    xTaskCreate(&simple_ota_example_task, "ota_example_task", 8192, NULL, 5, NULL);
 
 
 }
diff --git a/version.txt b/version.txt
new file mode 100644
index 0000000..2f45361
--- /dev/null
+++ b/version.txt
@@ -0,0 +1 @@
+0.2
\ No newline at end of file