【Beetle ESP32 C6迷你开发板】--5.WIFI扫描

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【Beetle ESP32 C6迷你开发板】--5.WIFI扫描 [复制链接]

      本篇讲述Beetle ESP32 C6 WIFI扫描热点功能。

一.代码准备

1.串口初始化，设置WIFI为STA模式，并主动断连一下WIFI

void setup() {
  Serial.begin(115200);

  // Set WiFi to station mode and disconnect from an AP if it was previously connected.
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);

  Serial.println("Setup done");
}

2.启动WIFI扫描，并将扫描结果打印出来。扫描结果包含扫描到的个数，WIFI名称SSID,信号强度rssi,通道CH和加密类型Encryption ，依此全部打印出来。扫描完后删除wifi扫描内存，间隔5s扫描一次。

void loop() {
  Serial.println("Scan start");

  // WiFi.scanNetworks will return the number of networks found.
  int n = WiFi.scanNetworks();
  Serial.println("Scan done");
  if (n == 0) {
    Serial.println("no networks found");
  } else {
    Serial.print(n);
    Serial.println(" networks found");
    Serial.println("Nr | SSID                             | RSSI | CH | Encryption");
    for (int i = 0; i < n; ++i) {
      // Print SSID and RSSI for each network found
      Serial.printf("%2d", i + 1);
      Serial.print(" | ");
      Serial.printf("%-32.32s", WiFi.SSID(i).c_str());
      Serial.print(" | ");
      Serial.printf("%4ld", WiFi.RSSI(i));
      Serial.print(" | ");
      Serial.printf("%2ld", WiFi.channel(i));
      Serial.print(" | ");
      switch (WiFi.encryptionType(i)) {
        case WIFI_AUTH_OPEN:            Serial.print("open"); break;
        case WIFI_AUTH_WEP:             Serial.print("WEP"); break;
        case WIFI_AUTH_WPA_PSK:         Serial.print("WPA"); break;
        case WIFI_AUTH_WPA2_PSK:        Serial.print("WPA2"); break;
        case WIFI_AUTH_WPA_WPA2_PSK:    Serial.print("WPA+WPA2"); break;
        case WIFI_AUTH_WPA2_ENTERPRISE: Serial.print("WPA2-EAP"); break;
        case WIFI_AUTH_WPA3_PSK:        Serial.print("WPA3"); break;
        case WIFI_AUTH_WPA2_WPA3_PSK:   Serial.print("WPA2+WPA3"); break;
        case WIFI_AUTH_WAPI_PSK:        Serial.print("WAPI"); break;
        default:                        Serial.print("unknown");
      }
      Serial.println();
      delay(10);
    }
  }
  Serial.println("");

  // Delete the scan result to free memory for code below.
  WiFi.scanDelete();

  // Wait a bit before scanning again.
  delay(5000);
}

二.编译烧录测验

      编译烧录运行后，可看到每隔5s扫描一次WIFI,并将扫描信息打印出来。

图1:WIFI扫描

      至此，对Beetle ESP32 C6的WIFI 扫描功能进行了调试测验。