#include <WiFi.h>

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  pinMode(2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println("Scan Wifi....");
  int nw = WiFi.scanNetworks();
  if(nw==0){
    Serial.println("No WiFi Networks Detected!");
  } else{
    digitalWrite(2, HIGH);
    Serial.print(nw);
    Serial.println("Network(s) Found!");
    for (int i=0; i<nw; i++){
      Serial.print("WiFi ke-");
      Serial.println(i+1);
      Serial.println(WiFi.SSID(i));
      Serial.println(WiFi.RSSI(i));
      delay(10);
    }
    }
  }