#include <SPI.h>
    #include <WiFi.h>

    //SSID of your network
    char ssid[] = "yourNetwork";
    int status = WL_IDLE_STATUS;     // the Wifi radio's status

    void setup()
    {
      // initialize serial:
      Serial.begin(9600);

      // scan for existing networks:
      Serial.println("Scanning available networks...");
      scanNetworks();

      // attempt to connect using WEP encryption:
      Serial.println("Attempting to connect to open network...");
      status = WiFi.begin(ssid);

      Serial.print("SSID: ");
      Serial.println(ssid);

    }

    void loop () {}

    void scanNetworks() {
      // scan for nearby networks:
      Serial.println("** Scan Networks **");
      byte numSsid = WiFi.scanNetworks();

      // print the list of networks seen:
      Serial.print("SSID List:");
      Serial.println(numSsid);
      // print the network number and name for each network found:
      for (int thisNet = 0; thisNet<numSsid; thisNet++) {
        Serial.print(thisNet);
        Serial.print(") Network: ");
        Serial.println(WiFi.SSID(thisNet));
      }
    }