void testSpeaker()
{
#if defined(_HAS_SPEAKER_)
#ifdef _HAS_PWR_CTRL_
    pinMode(SPK_POWER_EN, OUTPUT);
    digitalWrite(SPK_POWER_EN, HIGH);
#endif
    ledcSetup(LEDC_CHANNEL_0, 8000, 12);//timer,freq,bit
    ledcAttachPin(SPERKER_PIN, LEDC_CHANNEL_0);//pin,timer
  
    int i = 1;
    while (i--) {
        ledcWriteTone(LEDC_CHANNEL_0, 8000);
        delay(50);
      //  ledcWriteTone(LEDC_CHANNEL_0, 500);
    }
  
#ifdef _HAS_PWR_CTRL_
    pinMode(SPK_POWER_EN, INPUT);
#endif
    ledcDetachPin(SPERKER_PIN);
#endif
}

void testSpeaker2()
{
#if defined(_HAS_SPEAKER_)
#ifdef _HAS_PWR_CTRL_
    pinMode(SPK_POWER_EN, OUTPUT);
    digitalWrite(SPK_POWER_EN, HIGH);
#endif
    ledcSetup(LEDC_CHANNEL_0, 8000, 12);//timer,freq,bit
    ledcAttachPin(SPERKER_PIN, LEDC_CHANNEL_0);//pin,timer
  
    int i = 1;
    while (i--) {
        ledcWriteTone(LEDC_CHANNEL_0, 4000);
        delay(50);
      //  ledcWriteTone(LEDC_CHANNEL_0, 500);
    }
  
#ifdef _HAS_PWR_CTRL_
    pinMode(SPK_POWER_EN, INPUT);
#endif
    ledcDetachPin(SPERKER_PIN);
#endif
}



void testWiFi()
{
    WiFi.mode(WIFI_STA);
    WiFi.disconnect();
    // 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");
        for (int i = 0; i < n; ++i) {
            // Print SSID and RSSI for each network found
            Serial.print(i + 1);
            Serial.print(": ");
            Serial.print(WiFi.SSID(i));
            Serial.print(" (");
            Serial.print(WiFi.RSSI(i));
            Serial.print(")");
            Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN) ? " " : "*");
            delay(10);
        }
    }
    Serial.println("");
}