#include <SPI.h>
    #include <WiFi.h>
    //SSID of your network
    char ssid[] = "yourNetwork";
    //password of your WPA Network
    char pass[] = "secretPassword";
    void setup()
    {
     WiFi.begin(ssid, pass);
      if (WiFi.status() != WL_CONNECTED) {
        Serial.println("Couldn't get a wifi connection");
        while(true);
      }
      // if you are connected, print out info about the connection:
      else {
       // print the received signal strength:
      long rssi = WiFi.RSSI();
      Serial.print("RSSI:");
      Serial.println(rssi);
      }
    }
    void loop () {}