with pubnub

/*
  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://arduino.cc/en/Tutorial/WiFiWebClientRepeating
 This code is in the public domain.
 */

#include <SPI.h>
#include <WiFi101.h>

char ssid[] = "TP-LINK_8AC0"; //  your network SSID (name)
char pass[] = "37687281";    // your network password (use for WPA, or use as key for WEP)
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[] = "pubsub.pubnub.com";
//IPAddress server(64,131,82,241);

unsigned long lastConnectionTime = 0;            // last time you connected to the server, in milliseconds
const unsigned long postingInterval = 4L * 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);
  }

  // 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)) {
  if (client.connect("www.google.com", 80)) {
    Serial.println("connected to www.google.com...");
  }
  else {
    // if you couldn't make a connection:
    Serial.println("connection failed to www.google.com");
  }

  //-----------------------------

  // 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)) {
  if (client.connect("www.arduino.cc", 80)) {
    Serial.println("connected to www.arduino.cc...");
  }
  else {
    // if you couldn't make a connection:
    Serial.println("connection failed to www.arduino.cc");
  }

  //-----------------------------

  // 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)) {
  if (client.connect("pubsub.pubnub.com", 80)) {
    Serial.println("connected to pubsub.pubnub.com...");
  }
  else {
    // if you couldn't make a connection:
    Serial.println("connection failed to pubsub.pubnub.com");
  }

  //-----------------------------

  // note the time that the connection was made:
  lastConnectionTime = millis();
}


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");
}