Tin tức | InnoWay.vn

Em cảm ơn anh ạ. Em có một thắc mắc là ở phần kết nối MQTT này mình phải tự setup Wifi trước đúng không ạ?
Code:

void app_main(void)
{
ESP_LOGI(TAG, “[APP] Startup..”);
ESP_LOGI(TAG, “[APP] Free memory: %d bytes”, esp_get_free_heap_size());
ESP_LOGI(TAG, “[APP] IDF version: %s”, esp_get_idf_version());

esp_log_level_set(“*”, ESP_LOG_INFO);
esp_log_level_set(“mqtt_client”, ESP_LOG_VERBOSE);
esp_log_level_set(“MQTT_EXAMPLE”, ESP_LOG_VERBOSE);
esp_log_level_set(“TRANSPORT_BASE”, ESP_LOG_VERBOSE);
esp_log_level_set(“esp-tls”, ESP_LOG_VERBOSE);
esp_log_level_set(“TRANSPORT”, ESP_LOG_VERBOSE);
esp_log_level_set(“outbox”, ESP_LOG_VERBOSE);

ESP_ERROR_CHECK(nvs_flash_init());
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());

/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
* Read “Establishing Wi-Fi or Ethernet Connection” section in
* examples/protocols/README.md for more information about this function.
*/
ESP_ERROR_CHECK(example_connect());

mqtt_app_start();
}