#include "WiFi.h" // ESP32-s3 WiFi Scanning example. Хотя WiFi.h not_istalled! 
// Ref WiFi Scan example только esp32-devkit-c-v4. WiFi.h там тоже not_istalled

// Имхо, только эмулятор wifi

void setup() { Serial.begin(115200);  Serial.println("Initializing WiFi...");
  WiFi.mode(WIFI_STA);     Serial.println("Setup done!");
}
void loop() {   Serial.println("Scanning...");
// 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.println();      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("");
  delay(5000);  // Wait before scanning again
}