Updated all Wifi web client and server examples to attempt continual reconnects to the SSID

WiFi/examples/ScanNetworks/ScanNetworks.ino

@@ -21,7 +21,6 @@
 void setup() {
   // initialize serial and wait for the port to open:
   Serial.begin(9600);
-  while(!Serial) ;
 
   // attempt to connect using WEP encryption:
   Serial.println("Initializing Wifi...");

WiFi/examples/WifiChatServer/WifiChatServer.ino

@@ -14,7 +14,7 @@
  
  created 18 Dec 2009
  by David A. Mellis
- modified 12 Mar 2012
+ modified 23 Apr 2012
  by Tom Igoe
  
  */
@@ -34,28 +34,32 @@ WiFiServer server(23);
 boolean alreadyConnected = false; // whether or not the client was connected previously
 
 void setup() {
-  // initialize serial:
+  // start serial port:
   Serial.begin(9600);
-  Serial.println("Attempting to connect to Wifi 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);
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
-  else {
-    server.begin();
-    Serial.print("Connected to wifi.");
-    printWifiStatus();
-  }
+  // start the server:
+  server.begin();
+  // you're connected now, so print out the status:
+  printWifiStatus();
+  // print the Wifi board/shield's IP address:
+  Serial.print("My IP address: ");
+  Serial.println(WiFi.localIP());
 }
+
+
 void loop() {
   // wait for a new client:
   WiFiClient client = server.available();
 
-  
+
   // when the client sends the first byte, say hello:
   if (client) {
     if (!alreadyConnected) {
@@ -95,3 +99,4 @@ void printWifiStatus() {
   Serial.println(" dBm");
 }
 
+

WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino

@@ -15,7 +15,8 @@
  * Analog sensor attached to analog in 0
  * Wifi shield attached to pins 10, 11, 12, 13
  
- created 13 March 2012
+ created 13 Mar 2012
+ modified 23 Apr 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -45,21 +46,22 @@ boolean lastConnected = false;                 // state of the connection last t
 const unsigned long postingInterval = 10*1000; //delay between updates to Pachube.com
 
 void setup() {
+  // start serial port:
   Serial.begin(9600);
-  Serial.println("Attempting to connect to Wifi network...");
-  Serial.print("SSID: ");
-  Serial.println(ssid);
-
-  status = WiFi.begin(ssid, pass);
-  if ( status != WL_CONNECTED) {    
-    Serial.println("Couldn't get a wifi connection");
-    // stop here and do nothing:
-    while(true);
+  
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
-  else {
-    Serial.println("Connected to wifi");
-    printWifiStatus();
-  }
+  // you're connected now, so print out the status:
+  printWifiStatus();
+  // print the Wifi board/shield's IP address:
+  Serial.print("My IP address: ");
+  Serial.println(WiFi.localIP());
 }
 
 

WiFi/examples/WifiPachubeClientString/WifiPachubeClientString.ino

@@ -18,7 +18,8 @@
  * Analog sensor attached to analog in 0
  * Wifi shield attached to pins 10, 11, 12, 13
  
- created 16 March 2012
+ created 16 Mar 2012
+ modified 23 Apr 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -50,21 +51,22 @@ boolean lastConnected = false;                 // state of the connection last t
 const unsigned long postingInterval = 10*1000;  //delay between updates to Pachube.com
 
 void setup() {
+  // start serial port:
   Serial.begin(9600);
-  Serial.println("Attempting to connect to Wifi network...");
-  Serial.print("SSID: ");
-  Serial.println(ssid);
 
-  status = WiFi.begin(ssid, pass);
-  if ( status != WL_CONNECTED) { 
-    Serial.println("Couldn't get a wifi connection");
-    // stop here and do nothing:
-    while(true);
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
-  else {
-    Serial.println("Connected to wifi");
-    printWifiStatus();
-  }
+  // you're connected now, so print out the status:
+  printWifiStatus();
+  // print the Wifi board/shield's IP address:
+  Serial.print("My IP address: ");
+  Serial.println(WiFi.localIP());
 }
 
 void loop() {
@@ -161,3 +163,4 @@ void printWifiStatus() {
   Serial.println(" dBm");
 }
 
+

WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino

@@ -13,7 +13,7 @@
  Circuit:
  * WiFi shield attached to pins 10, 11, 12, 13
  
- created 15 Mar 2012
+ created 23 apr 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -24,8 +24,8 @@
 
 char ssid[] = "YourNetwork"; //  your network SSID (name) 
 char pass[] = "password";    // 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; // status of the wifi connection
 
 // initialize the library instance:
@@ -49,22 +49,25 @@ void setup() {
   // reserve space for the strings:
   currentLine.reserve(256);
   tweet.reserve(150);
-  // initialize serial:
+  // start serial port:
   Serial.begin(9600);
-  Serial.println("Attempting to connect to WPA network...");
-  
-  status = WiFi.begin(ssid, pass);
-  if ( status != WL_CONNECTED) { 
-    Serial.println("Couldn't get a wifi connection");
-    // stop here and do nothing:
-    while(true);
+
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
- else {
-    Serial.println("Connected to wifi");
-    printWifiStatus();
-    connectToServer();
-  }
+  // you're connected now, so print out the status:
+  printWifiStatus();
+  // print the Wifi board/shield's IP address:
+  Serial.print("My IP address: ");
+  Serial.println(WiFi.localIP());
+  connectToServer();
 }
+
 void loop()
 {
   if (client.connected()) {
@@ -147,3 +150,4 @@ void printWifiStatus() {
 
 
 
+

WiFi/examples/WifiWebClient/WifiWebClient.ino

@@ -5,9 +5,9 @@
  This sketch connects to a website (http://www.google.com)
  using a WiFi shield.
  
-  This example is written for a network using WPA encryption. For 
+ This example is written for a network using WPA encryption. For 
  WEP or WPA, change the Wifi.begin() call accordingly.
-
+ 
  This example is written for a network using WPA encryption. For 
  WEP or WPA, change the Wifi.begin() call accordingly.
  
@@ -16,7 +16,7 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 13 Mar 2012
+ modified 23 Apr 2012
  by Tom Igoe
  */
 
@@ -41,38 +41,37 @@ WiFiClient client;
 
 void setup() {
   Serial.begin(9600);
-  Serial.println("Attempting to connect to Wifi network...");
-  Serial.print("SSID: ");
-  Serial.println(ssid);
 
-  status = WiFi.begin(ssid, pass);
-  if ( status != WL_CONNECTED) { 
-    Serial.println("Couldn't get a wifi connection");
-    // stop here and do nothing:
-    while(true);
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
- else {
-    Serial.println("Connected to wifi");
-    printWifiStatus();
-    Serial.println("\nStarting connection to server...");
-    // if you get a connection, report back via serial:
-    if (client.connect(server, 80)) {
-      Serial.println("connected to server");
-      // Make a HTTP request:
-      client.println("GET /search?q=arduino HTTP/1.1");
-      client.println("Host:www.google.com");
-      client.println("Connection: close");
-      client.println();
-    }
+  Serial.println("Connected to wifi");
+  printWifiStatus();
+  
+  Serial.println("\nStarting connection to server...");
+  // if you get a connection, report back via serial:
+  if (client.connect(server, 80)) {
+    Serial.println("connected to server");
+    // Make a HTTP request:
+    client.println("GET /search?q=arduino HTTP/1.1");
+    client.println("Host:www.google.com");
+    client.println("Connection: close");
+    client.println();
+
   }
 }
 
 void loop() {
   // if there are incoming bytes available 
   // from the server, read them and print them:
-  if (client.available()>0) {
+  while (client.available()) {
     char c = client.read();
-    Serial.print(c);
+    Serial.write(c);
   }
 
   // if the server's disconnected, stop the client:
@@ -94,7 +93,7 @@ void printWifiStatus() {
 
   // print your WiFi shield's IP address:
   IPAddress ip = WiFi.localIP();
-    Serial.print("IP Address: ");
+  Serial.print("IP Address: ");
   Serial.println(ip);
 
   // print the received signal strength:
@@ -107,3 +106,4 @@ void printWifiStatus() {
 
 
 
+

WiFi/examples/WifiWebServer/WifiWebServer.ino

@@ -13,11 +13,9 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 20 Mar 2012
+ modified 23 Apr 2012
  by Tom Igoe
  */
-
-
 #include <SPI.h>
 #include <WiFi.h>
 
@@ -31,22 +29,23 @@ int status = WL_IDLE_STATUS;
 WiFiServer server(80);
 
 void setup() {
-  // initialize serial:
+  // start serial port:
   Serial.begin(9600);
-  Serial.println("Attempting to connect to Wifi 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);
+  
+  // attempt to connect to Wifi network:
+  while ( status != WL_CONNECTED) { 
+    Serial.print("Attempting to connect to SSID: ");
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, pass);
+    // wait 10 seconds for connection:
+    delay(10000);
   } 
-  else {
-    server.begin();
-    Serial.print("Connected to wifi.");
-    printWifiStatus();
-  }
+  server.begin();
+  // you're connected now, so print out the status:
+  printWifiStatus();
+  // print the Wifi board/shield's IP address:
+  Serial.print("My IP address: ");
+  Serial.println(WiFi.localIP());
 }