WiFi Web Client Repeating

/*

  Repeating Wifi Web Client

 This sketch connects to a a web server and makes a request

 using an Arduino Wifi shield.

 Circuit:

 * WiFi shield attached to pins SPI pins and pin 7

 created 23 April 2012

 modified 31 May 2012

 by Tom Igoe

 modified 13 Jan 2014

 by Federico Vanzati

 http://www.arduino.cc/en/Tutorial/WifiWebClientRepeating

 This code is in the public domain.

 */

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

char ssid[] = "yourNetwork";      //  your network SSID (name)
char pass[] = "secretPassword";   // your network password
int keyIndex = 0;            // your network key Index number (needed only for WEP)

int status = WL_IDLE_STATUS;

// Initialize the Wifi client library

WiFiClient client;

// server address:
char server[] = "www.arduino.cc";
//IPAddress server(64,131,82,241);

unsigned long lastConnectionTime = 0;            // last time you connected to the server, in milliseconds

const unsigned long postingInterval = 10L * 1000L; // delay between updates, in milliseconds

void setup() {

  //Initialize serial and wait for port to open:

  Serial.begin(9600);

  while (!Serial) {

    ; // wait for serial port to connect. Needed for native USB port only

  }

  // check for the presence of the shield:

  if (WiFi.status() == WL_NO_SHIELD) {

    Serial.println("WiFi shield not present");

    // don't continue:

    while (true);

  }

  String fv = WiFi.firmwareVersion();

  if (fv != "1.1.0") {

    Serial.println("Please upgrade the firmware");

  }

  // attempt to connect to Wifi network:

  while (status != WL_CONNECTED) {

    Serial.print("Attempting to connect to SSID: ");

    Serial.println(ssid);

    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:

    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:

    delay(10000);

  }

  // you're connected now, so print out the status:

  printWifiStatus();
}

void loop() {

  // if there's incoming data from the net connection.

  // send it out the serial port.  This is for debugging

  // purposes only:

  while (client.available()) {

    char c = client.read();

    Serial.write(c);

  }

  // if ten seconds have passed since your last connection,

  // then connect again and send data:

  if (millis() - lastConnectionTime > postingInterval) {

    httpRequest();

  }

}

// this method makes a HTTP connection to the server:
void httpRequest() {

  // close any connection before send a new request.

  // This will free the socket on the WiFi shield

  client.stop();

  // if there's a successful connection:

  if (client.connect(server, 80)) {

    Serial.println("connecting...");

    // send the HTTP PUT request:

    client.println("GET /latest.txt HTTP/1.1");

    client.println("Host: www.arduino.cc");

    client.println("User-Agent: ArduinoWiFi/1.1");

    client.println("Connection: close");

    client.println();

    // note the time that the connection was made:

    lastConnectionTime = millis();

  } else {

    // if you couldn't make a connection:

    Serial.println("connection failed");

  }
}

void printWifiStatus() {

  // print the SSID of the network you're attached to:

  Serial.print("SSID: ");

  Serial.println(WiFi.SSID());

  // print your WiFi shield's IP address:

  IPAddress ip = WiFi.localIP();

  Serial.print("IP Address: ");

  Serial.println(ip);

  // print the received signal strength:

  long rssi = WiFi.RSSI();

  Serial.print("signal strength (RSSI):");

  Serial.print(rssi);

  Serial.println(" dBm");
}