Question

这是我的代码，可以使用EPS8266连接到WiFi网络。我将DHT传感器连接到ESP。如果路由器发生中断，我可以在没有中断的情况下获取数据，但是我没有获取传感器数据，也无法重新连接到WiFi网络

static void wifi_task(void * pvParameters) {
    uint8_t status = 0;
    uint8_t retries = 30;
    struct sdk_station_config config = {
        .ssid = "CloveIOT",
        .password = "CloveIOT",
    };
    printf("WiFi: connecting to WiFi\n\r");
    sdk_wifi_set_opmode(STATION_MODE);
    sdk_wifi_station_set_config( & config);
    while (1) {
        while ((status != STATION_GOT_IP) && (retries)) {
            status = sdk_wifi_station_get_connect_status();
            printf("%s: status = %d\n\r", __func__, status);
            if (status == STATION_WRONG_PASSWORD) {
                printf("WiFi: wrong password\n\r");
                break;
            } else if (status == STATION_NO_AP_FOUND) {
                printf("WiFi: AP not found\n\r");
                break;
            } else if (status == STATION_CONNECT_FAIL) {
                printf("WiFi: connection failed\r\n");
                break;
            }
            vTaskDelay(1000 / portTICK_PERIOD_MS);
            --retries;
        }
        if (status == STATION_GOT_IP) {
            printf("WiFi: Connected\n\r");
            xSemaphoreGive(wifi_alive);
            taskYIELD();
        }

        while ((status = sdk_wifi_station_get_connect_status()) == STATION_GOT_IP) {
            xSemaphoreGive(wifi_alive);
            taskYIELD();
        }
        printf("WiFi: disconnected\n\r");
        sdk_wifi_station_disconnect();
        vTaskDelay(1000 / portTICK_PERIOD_MS);
    }
}

Answer 1

我遇到了同样的问题，现在我正在使用这种效果很好的WiFi连接方法。 在使用delay(1200);之前，它不起作用并停在WiFi.status() != WL_CONNECTED上。

void connectWiFi() {
  WiFi.disconnect();
  delay(1200);
  WiFi.mode(WIFI_STA);
  Serial.println(F("connectWiFi"));
  WiFi.begin(ssid, password);

  // wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(F("."));
  }

  Serial.println(F(""));
  Serial.print(F("Connected to "));
  Serial.println(ssid);
  Serial.print(F("IP address: "));
  Serial.println(WiFi.localIP());
}

使用ESP8266时，路由器中断后无法自动重新连接到WiFi

1 个答案: