#include <WiFi.h>

void setup() {
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
}

void loop() {
  Serial.println("Scanning WiFi...");
  int networks = WiFi.scanNetworks();
  if (networks == 0) {
    Serial.println("No WiFi Available!");
  } else {
    Serial.print(networks);
    Serial.println(" Networks Found!");
    for (int n = 0; n < networks; n++) {
      Serial.print("WiFi ");
      Serial.print(n + 1);
      Serial.print(" (");
      Serial.print(WiFi.SSID(n));
      Serial.print(", ");
      Serial.print(WiFi.RSSI(n));
      Serial.println(" dBm)");
      Serial.println();
    }
  }
}