Mesh and webserver
Posted: Wed Aug 23, 2023 8:05 am
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I want to program an ESP_IDF project that enable communication between 2 esp32 using mesh networking.Additionally, I want to run a web server on parent node to allow users to send on or off command to manage the LEDs of the child nodes.
To achive this, I have combined internal_communication mesh example from ESP_IDf Github repository with my web server code. However, both the mesh example and web server code utilize Wi-Fi and attempt to set the esp32 device in station mode, as well as register various handler and handler instaces.
I encounter an error while running this code. It has problem in "esp_event_loop_create_default<>" function and can't connect to hotspot, router, and reset after seconds.I attach logs images.
This is my code in Github repository too: https://github.com/as-moh-nok/internal_communication4
web server session that use Wi-Fi:
Code: Select all
void connect_wifi(void)
{
s_wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_netif_init());
ESP_ERROR_CHECK(esp_event_loop_create_default());
esp_netif_create_default_wifi_sta();
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
esp_event_handler_instance_t instance_any_id;
esp_event_handler_instance_t instance_got_ip;
ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
ESP_EVENT_ANY_ID,
&event_handler,
NULL,
&instance_any_id));
Code: Select all
//ESP_ERROR_CHECK(esp_netif_init());
/* event initialization */
ESP_ERROR_CHECK(esp_event_loop_create_default());
/* create network interfaces for mesh (only station instance saved for further manipulation, soft AP instance ignored */
ESP_ERROR_CHECK(esp_netif_create_default_wifi_mesh_netifs(&netif_sta, NULL));
/* wifi initialization */
wifi_init_config_t config = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&config));
ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &ip_event_handler, NULL));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_FLASH));
ESP_ERROR_CHECK(esp_wifi_start());
/* mesh initialization */
ESP_ERROR_CHECK(esp_mesh_init());
//#ifdef MESH_FIX_ROOT
//ESP_ERROR_CHECK(esp_mesh_fix_root(0));
//#endif
ESP_ERROR_CHECK(esp_event_handler_register(MESH_EVENT, ESP_EVENT_ANY_ID, &mesh_event_handler, NULL));
/* set mesh topology */Thanks!