diff --git a/main/main.c b/main/main.c
index 6324f01..43870f4 100644
--- a/main/main.c
+++ b/main/main.c
@@ -1,68 +1,14 @@
+#include <stdio.h>
 #include "freertos/FreeRTOS.h"
-#include "esp_wifi.h"
-#include "esp_system.h"
-#include "esp_event.h"
-#if ESP_IDF_VERSION_MAJOR < 4
-#include "esp_event_loop.h"
-#endif
-#include "nvs_flash.h"
-#include "driver/gpio.h"
+#include "freertos/task.h"
 
-#if ESP_IDF_VERSION_MAJOR >= 4
 
-static void wifi_event_handler(void* arg, esp_event_base_t event_base,
-                                int32_t event_id, void* event_data)
+void app_main()
 {
-}
-
-static void ip_event_handler(void* arg, esp_event_base_t event_base,
-                                int32_t event_id, void* event_data)
-{
-}
-
-#else
-
-esp_err_t event_handler(void *ctx, system_event_t *event)
-{
-    return ESP_OK;
-}
-
-#endif
-
-void app_main(void)
-{
-    nvs_flash_init();
-    tcpip_adapter_init();
-
-#if ESP_IDF_VERSION_MAJOR >= 4
-    ESP_ERROR_CHECK(esp_event_loop_create_default());
-    ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &wifi_event_handler, NULL));
-    ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, ESP_EVENT_ANY_ID, &ip_event_handler, NULL));
-#else
-    ESP_ERROR_CHECK( esp_event_loop_init(event_handler, NULL) );
-#endif
-
-    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
-    ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
-    ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
-    ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
-    wifi_config_t sta_config = {
-        .sta = {
-            .ssid = CONFIG_ESP_WIFI_SSID,
-            .password = CONFIG_ESP_WIFI_PASSWORD,
-            .bssid_set = false
-        }
-    };
-    ESP_ERROR_CHECK( esp_wifi_set_config(WIFI_IF_STA, &sta_config) );
-    ESP_ERROR_CHECK( esp_wifi_start() );
-    ESP_ERROR_CHECK( esp_wifi_connect() );
-
-    gpio_set_direction(GPIO_NUM_4, GPIO_MODE_OUTPUT);
-    int level = 0;
-    while (true) {
-        gpio_set_level(GPIO_NUM_4, level);
-        level = !level;
-        vTaskDelay(300 / portTICK_PERIOD_MS);
+    int i = 0;
+    while (1) {
+        printf("[%d] Hello world!\n", i);
+        i++;
+        vTaskDelay(5000 / portTICK_PERIOD_MS);
     }
 }
-