Added new examples in Arduino style, added IPAddress files. For real this time.

WiFi/IPAddress.cpp

@@ -0,0 +1,44 @@
+
+#include <Arduino.h>
+#include <IPAddress.h>
+
+IPAddress::IPAddress()
+{
+    memset(_address, 0, sizeof(_address));
+}
+
+IPAddress::IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet)
+{
+    _address[0] = first_octet;
+    _address[1] = second_octet;
+    _address[2] = third_octet;
+    _address[3] = fourth_octet;
+}
+
+IPAddress::IPAddress(uint32_t address)
+{
+    memcpy(_address, &address, sizeof(_address));
+}
+
+IPAddress::IPAddress(const uint8_t *address)
+{
+    memcpy(_address, address, sizeof(_address));
+}
+
+IPAddress& IPAddress::operator=(const uint8_t *address)
+{
+    memcpy(_address, address, sizeof(_address));
+    return *this;
+}
+
+IPAddress& IPAddress::operator=(uint32_t address)
+{
+    memcpy(_address, (const uint8_t *)&address, sizeof(_address));
+    return *this;
+}
+
+bool IPAddress::operator==(const uint8_t* addr)
+{
+    return memcmp(addr, _address, sizeof(_address)) == 0;
+}
+

WiFi/IPAddress.h

@@ -0,0 +1,72 @@
+/*
+ *
+ * MIT License:
+ * Copyright (c) 2011 Adrian McEwen
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * adrianm@mcqn.com 1/1/2011
+ */
+
+#ifndef IPAddress_h
+#define IPAddress_h
+
+// A class to make it easier to handle and pass around IP addresses
+
+class IPAddress {
+private:
+    uint8_t _address[4];  // IPv4 address
+    // Access the raw byte array containing the address.  Because this returns a pointer
+    // to the internal structure rather than a copy of the address this function should only
+    // be used when you know that the usage of the returned uint8_t* will be transient and not
+    // stored.
+    uint8_t* raw_address() { return _address; };
+
+public:
+    // Constructors
+    IPAddress();
+    IPAddress(uint8_t first_octet, uint8_t second_octet, uint8_t third_octet, uint8_t fourth_octet);
+    IPAddress(uint32_t address);
+    IPAddress(const uint8_t *address);
+
+    // Overloaded cast operator to allow IPAddress objects to be used where a pointer
+    // to a four-byte uint8_t array is expected
+    operator uint32_t() { return *((uint32_t*)_address); };
+    bool operator==(const IPAddress& addr) { return (*((uint32_t*)_address)) == (*((uint32_t*)addr._address)); };
+    bool operator==(const uint8_t* addr);
+
+    // Overloaded index operator to allow getting and setting individual octets of the address
+    uint8_t operator[](int index) const { return _address[index]; };
+    uint8_t& operator[](int index) { return _address[index]; };
+
+    // Overloaded copy operators to allow initialisation of IPAddress objects from other types
+    IPAddress& operator=(const uint8_t *address);
+    IPAddress& operator=(uint32_t address);
+
+    friend class EthernetClass;
+    friend class UDP;
+    friend class Client;
+    friend class Server;
+    friend class DhcpClass;
+    friend class DNSClient;
+};
+
+const IPAddress INADDR_NONE(0,0,0,0);
+
+
+#endif

WiFi/examples/Wifi_Open_RSSI/Wifi_Open_RSSI.ino

@@ -0,0 +1,50 @@
+/*
+ 
+ Open connection using the WiFi shield. Attempts to connect
+ and prints out the signal strength.
+ 
+ Circuit:
+ * WiFi shield attached
+ created 5 June 2011
+ by Tom Igoe
+ */
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";     // the name of your network
+int status = WL_IDLE_STATUS;     // the Wifi radio's status
+
+
+byte mac[6];                     // the MAC address of your Wifi shield
+IPAddress ip;                    // the IP address of your shield
+
+void setup() {
+  // initialize serial:
+  Serial.begin(9600);
+
+  // attempt to connect using WEP encryption:
+  Serial.println("Attempting to connect to open network...");
+  status = WiFi.begin(ssid);
+
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  // if you're not connected, stop here:
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+}
+
+void loop() {
+  // if you're connected, print out the signal strength:
+  if ( status != WL_CONNECTED) { 
+    // print the received signal strength:
+    long rssi = WiFi.RSSI();
+    Serial.print("RSSI:");
+    Serial.println(rssi);
+    delay(250);
+  } 
+}
+
+

WiFi/examples/Wifi_Open_ScanNetworks/Wifi_Open_ScanNetworks.ino

@@ -0,0 +1,155 @@
+/*
+ 
+ Open connection using the WiFi shield. Attempts to connect
+ and prints out info about the network
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 13 July 2010
+ by Domenico La Fauci
+ modified 5 June 2011
+ by Tom Igoe
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";     // the name of your network
+int status = WL_IDLE_STATUS;     // the Wifi radio's status
+
+
+byte mac[6];                     // the MAC address of your Wifi shield
+IPAddress ip;                    // the IP address of your shield
+IPAddress gateway;               // the router's address
+IPAddress subnet;                // the subnet mask
+
+void setup() {
+  // initialize serial:
+  Serial.begin(9600);
+ 
+  // attempt to connect using WEP encryption:
+  Serial.println("Attempting to connect to open network...");
+  status = WiFi.begin(ssid);
+  
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  // scan for existing networks:
+  Serial.println("Scanning available networks...");
+  scanNetworks();
+
+  // if you're not connected, stop here:
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  // if you are connected, print out info about the connection:
+  else {
+    printIpData();      
+    printCurrentNet();
+  }
+}
+
+void loop() {
+  // do nothing
+}
+
+void printIpData() {
+  // print your WiFi shield's IP address:
+  ip = WiFi.localIP();
+  Serial.print("IP: ");
+  Serial.print(ip[0]);
+  Serial.print(".");
+  Serial.print(ip[1]);
+  Serial.print(".");
+  Serial.print(ip[2]);
+  Serial.print(".");
+  Serial.println(ip[3]);
+
+  // print your subnet mask:
+  subnet = WiFi.subnetMask();
+  Serial.print("NETMASK: ");
+  Serial.print(subnet[0]);
+  Serial.print(".");
+  Serial.print(subnet[1]);
+  Serial.print(".");
+  Serial.print(subnet[2]);
+  Serial.print(".");
+  Serial.println(subnet[3]);
+
+  // print your gateway address:
+  gateway = WiFi.gatewayIP();
+  Serial.print("GATEWAY: ");
+  Serial.print(gateway[0]);
+  Serial.print(".");
+  Serial.print(gateway[1]);
+  Serial.print(".");
+  Serial.print(gateway[2]);
+  Serial.print(".");
+  Serial.println(gateway[3]);
+
+  // print your MAC address:
+  WiFi.macAddress(mac);
+  Serial.print("MAC: ");
+  Serial.print(mac[5],HEX);
+  Serial.print(":");
+  Serial.print(mac[4],HEX);
+  Serial.print(":");
+  Serial.print(mac[3],HEX);
+  Serial.print(":");
+  Serial.print(mac[2],HEX);
+  Serial.print(":");
+  Serial.print(mac[1],HEX);
+  Serial.print(":");
+  Serial.println(mac[0],HEX);
+}
+
+void printCurrentNet() {
+  // print the SSID of the network you're attached to:
+  Serial.print("SSID: ");
+  Serial.println(WiFi.SSID());
+
+  // print the MAC address of the router you're attached to:
+  byte bssid[6];
+  WiFi.BSSID(bssid);    
+  Serial.print("BSSID: ");
+  Serial.print(bssid[5],HEX);
+  Serial.print(":");
+  Serial.print(bssid[4],HEX);
+  Serial.print(":");
+  Serial.print(bssid[3],HEX);
+  Serial.print(":");
+  Serial.print(bssid[2],HEX);
+  Serial.print(":");
+  Serial.print(bssid[1],HEX);
+  Serial.print(":");
+  Serial.println(bssid[0],HEX);
+
+  // print the received signal strength:
+  long rssi = WiFi.RSSI();
+  Serial.print("RSSI:");
+  Serial.println(rssi);
+
+  // print the encryption type:
+  byte encryption = WiFi.encryptionType();
+  Serial.print("Encryption Type:");
+  Serial.println(encryption,HEX);
+}
+
+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));
+  }
+}

WiFi/examples/Wifi_WEP_ScanNetworks/Wifi_WEP_ScanNetworks.ino

@@ -0,0 +1,164 @@
+/*
+ 
+ WPA2 connection using the WiFi shield. Attempts to connect
+ and prints out info about the network
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 13 July 2010
+ by Domenico La Fauci
+ modified 5 June 2011
+ by Tom Igoe
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";     // the name of your network
+char keyIndex = 0;               // WEP networks can have multiple keys. 
+char key[] = "BAE4B2EDB9171646AA0DC8ED19";  // the key you're using to connect
+int status = WL_IDLE_STATUS;     // the Wifi radio's status
+
+
+byte mac[6];                     // the MAC address of your Wifi shield
+IPAddress ip;                    // the IP address of your shield
+IPAddress gateway;               // the router's address
+IPAddress subnet;                // the subnet mask
+
+void setup() {
+  // initialize serial:
+  Serial.begin(9600);
+ 
+  // attempt to connect using WEP encryption:
+  Serial.println("Attempting to connect to WEP-128 network...");
+  status = WiFi.begin(ssid, keyIndex, key);
+  
+  
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  // scan for existing networks:
+  Serial.println("Scanning available networks...");
+  scanNetworks();
+
+  // if you're not connected, stop here:
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  // if you are connected, print out info about the connection:
+  else {
+    printIpData();      
+    printCurrentNet();
+  }
+}
+
+void loop() {
+  // do nothing
+}
+
+void printIpData() {
+  // print your WiFi shield's IP address:
+  ip = WiFi.localIp();
+  Serial.print("IP: ");
+  Serial.print(ip[3]);
+  Serial.print(".");
+  Serial.print(ip[2]);
+  Serial.print(".");
+  Serial.print(ip[1]);
+  Serial.print(".");
+  Serial.println(ip[0]);
+
+  // print your subnet mask:
+  subnet = WiFi.subnetMask();
+  Serial.print("NETMASK: ");
+  Serial.print(subnet[3]);
+  Serial.print(".");
+  Serial.print(subnet[2]);
+  Serial.print(".");
+  Serial.print(subnet[1]);
+  Serial.print(".");
+  Serial.println(subnet[0]);
+
+  // print your gateway address:
+  gateway = WiFi.gatewayIP();
+  Serial.print("GATEWAY: ");
+  Serial.print(gateway[3]);
+  Serial.print(".");
+  Serial.print(gateway[2]);
+  Serial.print(".");
+  Serial.print(gateway[1]);
+  Serial.print(".");
+  Serial.println(gateway[0]);
+
+  // print your MAC address:
+  WiFi.macAddress(mac);
+  Serial.print("MAC: ");
+  Serial.print(mac[5],HEX);
+  Serial.print(":");
+  Serial.print(mac[4],HEX);
+  Serial.print(":");
+  Serial.print(mac[3],HEX);
+  Serial.print(":");
+  Serial.print(mac[2],HEX);
+  Serial.print(":");
+  Serial.print(mac[1],HEX);
+  Serial.print(":");
+  Serial.println(mac[0],HEX);
+}
+
+void printCurrentNet() {
+  // print the SSID of the network you're attached to:
+  Serial.print("SSID: ");
+  Serial.println(WiFi.SSID());
+
+  // print the MAC address of the router you're attached to:
+  byte bssid[6];
+  WiFi.BSSID(bssid);    
+  Serial.print("BSSID: ");
+  Serial.print(bssid[5],HEX);
+  Serial.print(":");
+  Serial.print(bssid[4],HEX);
+  Serial.print(":");
+  Serial.print(bssid[3],HEX);
+  Serial.print(":");
+  Serial.print(bssid[2],HEX);
+  Serial.print(":");
+  Serial.print(bssid[1],HEX);
+  Serial.print(":");
+  Serial.println(bssid[0],HEX);
+
+  // print the received signal strength:
+  long rssi = WiFi.RSSI();
+  Serial.print("RSSI:");
+  Serial.println(rssi);
+
+  // print the encryption type:
+  byte encryption = WiFi.encryptionType();
+  Serial.print("Encryption Type:");
+  Serial.println(encryption,HEX);
+}
+
+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));
+  }
+}
+
+
+
+
+
+

WiFi/examples/Wifi_WPA_ChatServer/Wifi_WPA_ChatServer.ino

@@ -0,0 +1,79 @@
+/*
+ Wifi Chat  Server
+ 
+ A simple server that distributes any incoming messages to all
+ connected clients.  To use telnet to  your device's IP address and type.
+ You can see the client's input in the serial monitor as well.
+ 
+ This example obtains an IP address from the Wifi router and
+ reports it.
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 21 May 2011
+ by Tom Igoe
+ 
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";     // the name of your network
+char pass[] = "secretPassword";  // the WPA2 password for your network
+int status = WL_IDLE_STATUS;     // the Wifi radio's status
+
+// telnet defaults to port 23
+Server server(23);
+
+boolean gotAMessage = false; // whether or not you got a message from the client yet
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Attempting to connect to WPA network...");
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  status = WiFi.begin(ssid, pass);
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  else {
+    server.begin();
+    Serial.print("Connected to wifi. My address:");
+    IPAddress myAddress = WiFi.localIP();
+    Serial.print(myAddress[0]);
+    Serial.print(".");
+    Serial.print(myAddress[1]);
+    Serial.print(".");
+    Serial.print(myAddress[2]);
+    Serial.print(".");
+    Serial.println(myAddress[3]);
+  }
+}
+
+void loop() {
+  // wait for a new client:
+  Client client = server.available();
+
+  // when the client sends the first byte, say hello:
+  if (client) {
+    if (!gotAMessage) {
+      Serial.println("I have a new client");
+      client.println("Hello, client!"); 
+      gotAMessage = true;
+    }
+    // read the bytes incoming from the client:
+    char thisChar = client.read();
+    // echo the bytes back to the client:
+    client.write(thisChar);
+    // echo the bytes to the server as well:
+    Serial.print(thisChar);
+  }
+}
+
+
+
+

WiFi/examples/Wifi_WPA_PachubeClientString/Wifi_WPA_PachubeClientString.ino

@@ -0,0 +1,140 @@
+/*
+  Pachube sensor client with Strings
+ 
+ This sketch connects an analog sensor to Pachube (http://www.pachube.com)
+ using an Arduino WiFi shield.
+ 
+ This example uses the String library, which is part of the Arduino core from
+ version 0019.  
+ 
+ Circuit:
+ * Analog sensors attached to analog in 0 and 1
+ * WoFo shield attached to pins 10, 11, 12, 13
+ 
+ created 15 March 2010
+ updated 5 June 2011
+ by Tom Igoe
+ 
+ This code is in the public domain.
+ 
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";
+char pass[] = "secretPassword";
+int status = WL_IDLE_STATUS;
+
+//  The address of the server you want to connect to (pachube.com):
+IPAddress server(173,203,98,29);
+
+// initialize the library instance:
+Client client;
+
+long lastConnectionTime = 0;        // last time you connected to the server, in milliseconds
+boolean lastConnected = false;      // state of the connection last time through the main loop
+const int postingInterval = 30000;  //delay between updates to Pachube.com
+
+int startWiFiWpa()
+{
+  Serial.println("\nSetup WiFi Wpa...");
+  //strcpy(ssid, "AndroidAP9647");
+  strcpy(ssid, "tigoenet");
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+  const char *pass = "m30w-m30w";
+  status = WiFi.begin(ssid, pass);
+  if ( status != WL_CONNECTED)
+  {
+    Serial.println("Connection Failed");
+  }
+  return status;
+}
+
+
+
+void setup() {
+  // start the WiFi connection and the server:
+  Serial.begin(9600);
+  Serial.println("*** Start WebClient WiFi example ***");
+
+  int _status = startWiFiWpa();
+  if ( _status == WL_CONNECTED)
+  {
+    Serial.println("\nWiFi Connected.");
+  }
+
+  delay(1000);
+}
+
+
+void loop() {
+  // read the analog sensor:
+  int sensorReading = analogRead(A0);   
+  // convert the data to a String to send it:
+  String dataString = String(sensorReading);
+
+  // you can append multiple readings to this String if your
+  // pachube feed is set up to handle multiple values:
+  int otherSensorReading = analogRead(A1);
+  dataString += ",";
+  dataString += String(otherSensorReading);
+
+  // if there's incoming data from the net connection.
+  // send it out the serial port.  This is for debugging
+  // purposes only:
+  if (client.available()) {
+    char c = client.read();
+    Serial.print(c);
+  }
+
+  // if there's no net connection, but there was one last time
+  // through the loop, then stop the client:
+  if (!client.connected() && lastConnected) {
+    Serial.println();
+    Serial.println("disconnecting.");
+    client.stop();
+  }
+
+  // if you're not connected, and ten seconds have passed since
+  // your last connection, then connect again and send data:
+  if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
+    sendData(dataString);
+  }
+  // store the state of the connection for next time through
+  // the loop:
+  lastConnected = client.connected();
+}
+
+// this method makes a HTTP connection to the server:
+void sendData(String thisData) {
+  // if there's a successful connection:
+  if (client.connect(server, 80)) {
+    Serial.println("connecting...");
+    // send the HTTP PUT request. 
+    // fill in your feed address here:
+    client.print("PUT /api/YOUR_FEED_HERE.csv HTTP/1.1\n");
+    client.print("Host: www.pachube.com\n");
+    // fill in your Pachube API key here:
+    client.print("X-PachubeApiKey: YOUR_KEY_HERE\n");
+    client.print("Content-Length: ");
+    client.println(thisData.length(), DEC);
+
+    // last pieces of the HTTP PUT request:
+    client.print("Content-Type: text/csv\n");
+    client.println("Connection: close\n");
+
+    // here's the actual content of the PUT request:
+    client.println(thisData);
+
+    // note the time that the connection was made:
+    lastConnectionTime = millis();
+  } 
+  else {
+    // if you couldn't make a connection:
+    Serial.println("connection failed");
+  }
+}
+

WiFi/examples/Wifi_WPA_ScanNetworks/Wifi_WPA_ScanNetworks.ino

@@ -0,0 +1,167 @@
+/*
+ 
+ WPA2 conection using the WiFi shield. Attempts to connect
+ and prints out info about the network
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 13 July 2010
+ by Domenico La Fauci
+ modified 5 June 2011
+ by Tom Igoe
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";     // the name of your network
+char pass[] = "secretPassword";  // the WPA2 password for your network
+
+int status = WL_IDLE_STATUS;     // the Wifi radio's status
+
+byte mac[6];                     // the MAC address of your Wifi shield
+IPAddress ip;                    // the IP address of your shield
+IPAddress gateway;               // the router's address
+IPAddress subnet;                // the subnet mask
+
+void setup() {
+  // initialize serial:
+  Serial.begin(9600);
+ 
+  // attempt to connect using WEP encryption:
+//  Serial.println("Attempting to connect to WEP-128 network...");
+//  status = WiFi.begin(ssid, keyIndex, key);
+  
+   // attempt to connect using WPA2 encryption:
+  Serial.println("Attempting to connect to WPA network...");
+  status = WiFi.begin(ssid, pass);
+
+  
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  // scan for existing networks:
+  Serial.println("Scanning available networks...");
+  scanNetworks();
+
+  // if you're not connected, stop here:
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  // if you are connected, print out info about the connection:
+  else {
+    printIpData();      
+    printCurrentNet();
+  }
+}
+
+void loop() {
+  // do nothing
+}
+
+void printIpData() {
+  // print your WiFi shield's IP address:
+  ip = WiFi.localIP();
+  Serial.print("IP: ");
+  Serial.print(ip[0]);
+  Serial.print(".");
+  Serial.print(ip[1]);
+  Serial.print(".");
+  Serial.print(ip[2]);
+  Serial.print(".");
+  Serial.println(ip[3]);
+
+  // print your subnet mask:
+  subnet = WiFi.subnetMask();
+  Serial.print("NETMASK: ");
+  Serial.print(subnet[0]);
+  Serial.print(".");
+  Serial.print(subnet[1]);
+  Serial.print(".");
+  Serial.print(subnet[2]);
+  Serial.print(".");
+  Serial.println(subnet[3]);
+
+  // print your gateway address:
+  gateway = WiFi.gatewayIP();
+  Serial.print("GATEWAY: ");
+  Serial.print(gateway[0]);
+  Serial.print(".");
+  Serial.print(gateway[1]);
+  Serial.print(".");
+  Serial.print(gateway[2]);
+  Serial.print(".");
+  Serial.println(gateway[3]);
+
+  // print your MAC address:
+  WiFi.macAddress(mac);
+  Serial.print("MAC: ");
+  Serial.print(mac[5],HEX);
+  Serial.print(":");
+  Serial.print(mac[4],HEX);
+  Serial.print(":");
+  Serial.print(mac[3],HEX);
+  Serial.print(":");
+  Serial.print(mac[2],HEX);
+  Serial.print(":");
+  Serial.print(mac[1],HEX);
+  Serial.print(":");
+  Serial.println(mac[0],HEX);
+}
+
+void printCurrentNet() {
+  // print the SSID of the network you're attached to:
+  Serial.print("SSID: ");
+  Serial.println(WiFi.SSID());
+
+  // print the MAC address of the router you're attached to:
+  byte bssid[6];
+  WiFi.BSSID(bssid);    
+  Serial.print("BSSID: ");
+  Serial.print(bssid[5],HEX);
+  Serial.print(":");
+  Serial.print(bssid[4],HEX);
+  Serial.print(":");
+  Serial.print(bssid[3],HEX);
+  Serial.print(":");
+  Serial.print(bssid[2],HEX);
+  Serial.print(":");
+  Serial.print(bssid[1],HEX);
+  Serial.print(":");
+  Serial.println(bssid[0],HEX);
+
+  // print the received signal strength:
+  long rssi = WiFi.RSSI();
+  Serial.print("RSSI:");
+  Serial.println(rssi);
+
+  // print the encryption type:
+  byte encryption = WiFi.encryptionType();
+  Serial.print("Encryption Type:");
+  Serial.println(encryption,HEX);
+}
+
+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));
+  }
+}
+
+
+
+
+
+

WiFi/examples/Wifi_WPA_TwitterClient/Wifi_WPA_TwitterClient.ino

@@ -0,0 +1,121 @@
+/*
+  Twitter Client with Strings
+ 
+ This sketch connects to Twitter using using an Arduino WiFi shield. 
+ It parses the XML returned, and looks for <text>this is a tweet</text>
+ 
+ This example uses the String library, which is part of the Arduino core from
+ version 0019.  
+ 
+ Circuit:
+ * WiFi shield attached to pins 10, 11, 12, 13
+ 
+ created 21 May 2011
+ by Tom Igoe
+ 
+ This code is in the public domain.
+ 
+ */
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";
+char pass[] = "secretpassword";
+int status = WL_IDLE_STATUS;
+
+// initialize the library instance:
+Client client;
+
+const int requestInterval = 30*1000;    // delay between requests; 30 seconds
+
+IPAddress server(199,59,149,200);      // api.twitter.com
+
+boolean requested;                     // whether you've made a request since connecting
+long lastAttemptTime = 0;              // last time you connected to the server, in milliseconds
+
+String currentLine = "";               // string to hold the text from server
+String tweet = "";                     // string to hold the tweet
+boolean readingTweet = false;          // if you're currently reading the tweet
+
+void setup() {
+  // reserve space for the strings:
+  currentLine.reserve(256);
+  tweet.reserve(150);
+  // initialize serial:
+  Serial.begin(9600);
+  Serial.println("Attempting to connect to WPA network...");
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  status = WiFi.begin(ssid, pass);
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  else {
+    Serial.println("Connected to wifi");
+    connectToServer();
+  }
+}
+
+
+
+void loop()
+{
+  if (client.connected()) {
+    if (client.available()) {
+      // read incoming bytes:
+      char inChar = client.read();
+      
+      // add incoming byte to end of line:
+      currentLine += inChar; 
+
+      // if you get a newline, clear the line:
+      if (inChar == '\n') {
+        currentLine = "";
+      } 
+      // if the current line ends with <text>, it will
+      // be followed by the tweet:
+      if ( currentLine.endsWith("<text>")) {
+        // tweet is beginning. Clear the tweet string:
+        readingTweet = true; 
+        tweet = "";
+      }
+      // if you're currently reading the bytes of a tweet,
+      // add them to the tweet String:
+      if (readingTweet) {
+        if (inChar != '<') {
+          tweet += inChar;
+        } 
+        else {
+          // if you got a "<" character,
+          // you've reached the end of the tweet:
+          readingTweet = false;
+          Serial.println(tweet);   
+          // close the connection to the server:
+          client.stop(); 
+        }
+      }
+    }   
+  }
+  else if (millis() - lastAttemptTime > requestInterval) {
+    // if you're not connected, and two minutes have passed since
+    // your last connection, then attempt to connect again:
+    connectToServer();
+  }
+}
+
+void connectToServer() {
+  // attempt to connect, and wait a millisecond:
+  Serial.println("connecting to server...");
+  if (client.connect(server, 80)) {
+    Serial.println("making HTTP request...");
+    // make HTTP GET request to twitter:
+    client.println("GET /1/statuses/user_timeline.xml?screen_name=arduinoteam HTTP/1.1");
+    client.println("HOST: api.twitter.com");
+    client.println();
+  }
+  // note the time of this connect attempt:
+  lastAttemptTime = millis();
+}   
+

WiFi/examples/Wifi_WPA_WebClient/Wifi_WPA_WebClient.ino

@@ -0,0 +1,77 @@
+
+/*
+  Web client
+ 
+ This sketch connects to a website (http://www.google.com)
+ using a WiFi shield.
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 13 July 2010
+ by Domenico La Fauci
+ modified 21 May 2011
+ by Tom Igoe
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+#include <IPAddress.h>
+
+char ssid[] = "yourNetwork";
+char pass[] = "secretPassword";
+int status = WL_IDLE_STATUS;
+IPAddress server(74,125,115,105);  // Google
+
+// Initialize the Ethernet client library
+// with the IP address and port of the server 
+// that you want to connect to (port 80 is default for HTTP):
+Client client;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Attempting to connect to WPA network...");
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  status = WiFi.begin(ssid, pass);
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    // don't do anything else:
+    while(true);
+  } 
+  else {
+    Serial.println("Connected to wifi");
+    Serial.println("\nStarting connection...");
+    // if you get a connection, report back via serial:
+    if (client.connect(server, 80)) {
+      Serial.println("connected");
+      // Make a HTTP request:
+      client.println("GET /search?q=arduino HTTP/1.0");
+      client.println();
+    }
+  }
+}
+
+void loop() {
+  // if there are incoming bytes available 
+  // from the server, read them and print them:
+  if (client.available()) {
+    char c = client.read();
+    Serial.print(c);
+  }
+
+  // if the server's disconnected, stop the client:
+  if (!client.connected()) {
+    Serial.println();
+    Serial.println("disconnecting.");
+    client.stop();
+
+    // do nothing forevermore:
+    for(;;)
+      ;
+  }
+}
+
+

WiFi/examples/Wifi_WPA_WebServer/Wifi_WPA_WebServer.ino

@@ -0,0 +1,100 @@
+/*
+  Web  Server
+ 
+ A simple web server that shows the value of the analog input pins.
+ using a WiFi shield.
+ 
+ Circuit:
+ * WiFi shield attached
+ * Analog inputs attached to pins A0 through A5 (optional)
+ 
+ created 13 July 2010
+ by Domenico La Fauci
+ modified 5 June 2011
+ by Tom Igoe
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork";
+char pass[] = "secretpassword";
+int status = WL_IDLE_STATUS;
+
+Server server(80);
+
+void setup() {
+  // initialize serial:
+  Serial.begin(9600);
+  Serial.println("Attempting to connect to WPA network...");
+  Serial.print("SSID: ");
+  Serial.println(ssid);
+
+  status = WiFi.begin(ssid, pass);
+  if ( status != WL_CONNECTED) { 
+    Serial.println("Couldn't get a wifi connection");
+    while(true);
+  } 
+  else {
+    server.begin();
+    Serial.print("Connected to wifi. My address:");
+    IPAddress myAddress = WiFi.localIp();
+    Serial.print(myAddress[0]);
+    Serial.print(".");
+    Serial.print(myAddress[1]);
+    Serial.print(".");
+    Serial.print(myAddress[2]);
+    Serial.print(".");
+    Serial.println(myAddress[3]);
+  }
+}
+
+
+void loop() {
+  // listen for incoming clients
+  Client client = server.available();
+  if (client) {
+    // an http request ends with a blank line
+    boolean currentLineIsBlank = true;
+    while (client.connected()) {
+      if (client.available()) {
+        char c = client.read();
+        // if you've gotten to the end of the line (received a newline
+        // character) and the line is blank, the http request has ended,
+        // so you can send a reply
+        if (c == '\n' && currentLineIsBlank) {
+          // send a standard http response header
+          client.println("HTTP/1.1 200 OK");
+          client.println("Content-Type: text/html");
+          client.println();
+          client.println("<html>");
+          // output the value of each analog input pin
+          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
+            client.print("analog input ");
+            client.print(analogChannel);
+            client.print(" is ");
+            client.print(analogRead(analogChannel));
+            client.println("<br />");       
+          }
+          client.println("</html>");
+          break;
+        }
+        if (c == '\n') {
+          // you're starting a new line
+          currentLineIsBlank = true;
+        } 
+        else if (c != '\r') {
+          // you've gotten a character on the current line
+          currentLineIsBlank = false;
+        }
+      }
+    }
+    // give the web browser time to receive the data
+    delay(1);
+    // close the connection:
+    client.stop();
+  }
+}
+
+