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#include "simple_wifi_sta.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_system.h"
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#include "nvs_flash.h"
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#include "nvs.h"
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#include "freertos/event_groups.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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//需要把这两个修改成你家WIFI，测试是否连接成功
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#define DEFAULT_WIFI_SSID "rehome"
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#define DEFAULT_WIFI_PASSWORD "Ruihong123"
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static const char *TAG = "wifi";
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//事件通知回调函数
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static wifi_event_cb wifi_cb = NULL;
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/** 事件回调函数
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* @param arg 用户传递的参数
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* @param event_base 事件类别
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* @param event_id 事件ID
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* @param event_data 事件携带的数据
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* @return 无
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*/
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static void event_handler(void* arg, esp_event_base_t event_base,int32_t event_id, void* event_data)
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{
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if(event_base == WIFI_EVENT)
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{
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switch (event_id)
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{
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case WIFI_EVENT_STA_START: //WIFI以STA模式启动后触发此事件
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esp_wifi_connect(); //启动WIFI连接
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break;
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case WIFI_EVENT_STA_CONNECTED: //WIFI连上路由器后，触发此事件
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ESP_LOGI(TAG, "connected to AP");
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break;
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case WIFI_EVENT_STA_DISCONNECTED: //WIFI从路由器断开连接后触发此事件
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esp_wifi_connect(); //继续重连
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ESP_LOGI(TAG,"connect to the AP fail,retry now");
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break;
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default:
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break;
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}
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}
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if(event_base == IP_EVENT) //IP相关事件
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{
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switch(event_id)
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{
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case IP_EVENT_STA_GOT_IP: //只有获取到路由器分配的IP，才认为是连上了路由器
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if(wifi_cb)
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wifi_cb(WIFI_CONNECTED);
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ESP_LOGI(TAG,"get ip address");
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break;
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}
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}
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}
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//WIFI STA初始化
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esp_err_t wifi_sta_init(wifi_event_cb f)
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{
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ESP_ERROR_CHECK(esp_netif_init()); //用于初始化tcpip协议栈
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ESP_ERROR_CHECK(esp_event_loop_create_default()); //创建一个默认系统事件调度循环，之后可以注册回调函数来处理系统的一些事件
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esp_netif_create_default_wifi_sta(); //使用默认配置创建STA对象
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//初始化WIFI
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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//注册事件
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ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT,ESP_EVENT_ANY_ID,&event_handler,NULL));
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ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT,IP_EVENT_STA_GOT_IP,&event_handler,NULL));
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//WIFI配置
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wifi_config_t wifi_config =
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{
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.sta =
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{
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.ssid = DEFAULT_WIFI_SSID, //WIFI的SSID
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.password = DEFAULT_WIFI_PASSWORD, //WIFI密码
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.threshold.authmode = WIFI_AUTH_WPA2_PSK, //加密方式
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.pmf_cfg =
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{
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.capable = true,
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.required = false
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},
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},
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};
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wifi_cb = f;
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//启动WIFI
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA) ); //设置工作模式为STA
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ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config) ); //设置wifi配置
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ESP_ERROR_CHECK(esp_wifi_start() ); //启动WIFI
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ESP_LOGI(TAG, "wifi_init_sta finished.");
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return ESP_OK;
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}
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