Changed examples to include shield detection

WiFi/examples/ConnectNoEncryption/ConnectNoEncryption.ino

@@ -9,8 +9,8 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 29 Feb 2012
+ modified 31 May 2012
- by Scott Fitzgerald
+ by Tom Igoe
  */
  #include <WiFi.h>
 
@@ -20,23 +20,28 @@ int status = WL_IDLE_STATUS;     // the Wifi radio's status
 void setup() {
   // initialize serial:
   Serial.begin(9600);
-
+  
-  // attempt to connect to an open network:
+  // check for the presence of the shield:
-  Serial.print("Attempting to connect to open network: ");
+  if (WiFi.status() == WL_NO_SHIELD) {
-  Serial.println(ssid);
+    Serial.println("WiFi shield not present"); 
-  status = WiFi.begin(ssid);
+    // don't continue:
-
-  // 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 :
+  
-  else {
+ // attempt to connect to Wifi network:
-      Serial.print("You're connected to the network");
+  while ( status != WL_CONNECTED) { 
-      printCurrentNet();
+    Serial.print("Attempting to connect to open SSID: ");
-      printWifiData();
+    Serial.println(ssid);
+    status = WiFi.begin(ssid);
+
+    // wait 10 seconds for connection:
+    delay(10000);
   }
+   
+  // you're connected now, so print out the data:
+  Serial.print("You're connected to the network");
+  printCurrentNet();
+  printWifiData();
 }
 
 void loop() {

WiFi/examples/ConnectWithWEP/ConnectWithWEP.ino

@@ -19,7 +19,7 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 4 Mar 2012
+ modified 31 May 2012
  by Tom Igoe
  */
 #include <WiFi.h>
@@ -33,22 +33,27 @@ void setup() {
   // initialize serial:
   Serial.begin(9600);
 
-  // attempt to connect to an open network:
+  // check for the presence of the shield:
-  Serial.print("Attempting to connect to WEP network: ");
+  if (WiFi.status() == WL_NO_SHIELD) {
-  Serial.println(ssid);
+    Serial.println("WiFi shield not present"); 
-  status = WiFi.begin(ssid, keyIndex, key);
+    // don't continue:
-
-  // 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 :
+
-  else {
+  // attempt to connect to Wifi network:
-    Serial.print("You're connected to the network");
+  while ( status != WL_CONNECTED) { 
-    printCurrentNet();
+    Serial.print("Attempting to connect to WEP network, SSID: ");
-    printWifiData();
+    Serial.println(ssid);
+    status = WiFi.begin(ssid, keyIndex, key);
+
+    // wait 10 seconds for connection:
+    delay(10000);
   }
+
+  // once you are connected :
+  Serial.print("You're connected to the network");
+  printCurrentNet();
+  printWifiData();
 }
 
 void loop() {
@@ -60,7 +65,7 @@ void loop() {
 void printWifiData() {
   // print your WiFi shield's IP address:
   IPAddress ip = WiFi.localIP();
-    Serial.print("IP Address: ");
+  Serial.print("IP Address: ");
   Serial.println(ip);
   Serial.println(ip);
 
@@ -115,3 +120,4 @@ void printCurrentNet() {
 }
 
 
+

WiFi/examples/ConnectWithWPA/ConnectWithWPA.ino

@@ -9,35 +9,42 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 29 Feb 2012
+ modified 31 May 2012
- by Scott Fitzgerald
+ by Tom Igoe
  */
  #include <WiFi.h>
 
-char ssid[] = "networkName";     //  your network SSID (name) 
+char ssid[] = "yourNetwork";     //  your network SSID (name) 
-char pass[] = "yourPassword";    // your network password
+char pass[] = "secretPassword";  // your network password
 int status = WL_IDLE_STATUS;     // the Wifi radio's status
 
 void setup() {
   // initialize serial:
   Serial.begin(9600);
-
-  // attempt to connect to an open network:
-  Serial.print("Attempting to connect to WPA network: ");
-  Serial.println(ssid);
-  status = WiFi.begin(ssid, pass);
   
-  // if you're not connected, stop here:
+  // check for the presence of the shield:
-  if ( status != WL_CONNECTED) { 
+  if (WiFi.status() == WL_NO_SHIELD) {
-    Serial.println("Couldn't get a wifi connection");
+    Serial.println("WiFi shield not present"); 
+    // don't continue:
     while(true);
   } 
-  // if you are connected :
+  
-  else {
+ // attempt to connect to Wifi network:
-      Serial.print("You're connected to the network");
+  while ( status != WL_CONNECTED) { 
-      printCurrentNet();
+    Serial.print("Attempting to connect to WPA SSID: ");
-      printWifiData();
+    Serial.println(ssid);
+    // Connect to WPA/WPA2 network:    
+    status = WiFi.begin(ssid, pass);
+
+    // wait 10 seconds for connection:
+    delay(10000);
   }
+   
+  // you're connected now, so print out the data:
+  Serial.print("You're connected to the network");
+  printCurrentNet();
+  printWifiData();
+
 }
 
 void loop() {

WiFi/examples/ScanNetworks/ScanNetworks.ino

@@ -10,7 +10,7 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 22 April 2012
+ modified 31 May 2012
  by Tom Igoe
  */
 
@@ -21,9 +21,15 @@
 void setup() {
   // initialize serial and wait for the port to open:
   Serial.begin(9600);
-
+  
-  // attempt to connect using WEP encryption:
+  // check for the presence of the shield:
-  Serial.println("Initializing Wifi...");
+  if (WiFi.status() == WL_NO_SHIELD) {
+    Serial.println("WiFi shield not present"); 
+    // don't continue:
+    while(true);
+  } 
+  
+  // Print WiFi MAC address:
   printMacAddress();
 
   // scan for existing networks:

WiFi/examples/WifiChatServer/WifiChatServer.ino

@@ -14,7 +14,7 @@
  
  created 18 Dec 2009
  by David A. Mellis
- modified 23 Apr 2012
+ modified 31 May 2012
  by Tom Igoe
  
  */
@@ -22,8 +22,8 @@
 #include <SPI.h>
 #include <WiFi.h>
 
-char ssid[] = "YourNetwork"; //  your network SSID (name) 
+char ssid[] = "yourNetwork"; //  your network SSID (name) 
-char pass[] = "password";    // your network password (use for WPA, or use as key for WEP)
+char pass[] = "secretPassword";    // your network password (use for WPA, or use as key for WEP)
 
 int keyIndex = 0;            // your network key Index number (needed only for WEP)
 
@@ -36,16 +36,21 @@ boolean alreadyConnected = false; // whether or not the client was connected pre
 void setup() {
   // start serial port:
   Serial.begin(9600);
-
+  
+  // 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);
-        if ( status != WL_CONNECTED) { 
+
-      Serial.println("Couldn't get a wifi connection");
-      while(true);
-    }     
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiCosmClient/WifiCosmClient.ino

@@ -16,7 +16,7 @@
  * Wifi shield attached to pins 10, 11, 12, 13
  
  created 13 Mar 2012
- modified 14 May 2012
+ modified 31 May 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -49,15 +49,20 @@ void setup() {
   // start serial port:
   Serial.begin(9600);
   
+  // 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);
-    if ( status != WL_CONNECTED) { 
+
-      Serial.println("Couldn't get a wifi connection");
-      while(true);
-    } 
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiCosmClientString/WifiCosmClientString.ino

@@ -19,7 +19,7 @@
  * Wifi shield attached to pins 10, 11, 12, 13
  
  created 16 Mar 2012
- modified 14 May 2012
+ modified 31 May 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -53,16 +53,21 @@ const unsigned long postingInterval = 10*1000;  //delay between updates to cosm.
 void setup() {
   // start serial port:
   Serial.begin(9600);
-
+  
+  // 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);
-    if ( status != WL_CONNECTED) { 
+
-      Serial.println("Couldn't get a wifi connection");
-      while(true);
-    } 
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino

@@ -14,6 +14,7 @@
  * WiFi shield attached to pins 10, 11, 12, 13
  
  created 23 apr 2012
+ modified 31 May 2012
  by Tom Igoe
  
  This code is in the public domain.
@@ -22,7 +23,7 @@
 #include <SPI.h>
 #include <WiFi.h>
 
-char ssid[] = "YourNetwork"; //  your network SSID (name) 
+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)
 
@@ -51,16 +52,21 @@ void setup() {
   tweet.reserve(150);
   // start serial port:
   Serial.begin(9600);
-
+  
+  // 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);
-    status = WiFi.begin(ssid, pass);
+    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:    
-    if ( status != WL_CONNECTED) { 
+    status = WiFi.begin(ssid, pass);  
-      Serial.println("Couldn't get a wifi connection");
+ 
-      while(true);
-    }     
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiWebClient/WifiWebClient.ino

@@ -16,7 +16,7 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 23 Apr 2012
+ modified 31 May 2012
  by Tom Igoe
  */
 
@@ -24,8 +24,8 @@
 #include <SPI.h>
 #include <WiFi.h>
 
-char ssid[] = "YourNetwork"; //  your network SSID (name) 
+char ssid[] = "yourNetwork"; //  your network SSID (name) 
-char pass[] = "password";    // your network password (use for WPA, or use as key for WEP)
+char pass[] = "secretPassword";    // 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;
@@ -41,16 +41,21 @@ WiFiClient client;
 
 void setup() {
   Serial.begin(9600);
-
+  
+  // 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);
-    if ( status != WL_CONNECTED) { 
+  
-      Serial.println("Couldn't get a wifi connection");
-      while(true);
-    }     
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiWebClientRepeating/WifiWebClientRepeating.ino

@@ -7,7 +7,8 @@
  Circuit:
  * Wifi shield attached to pins 10, 11, 12, 13
  
- created 23 Apr 2012
+ created 23 April 2012
+ modifide 31 May 2012
  by Tom Igoe
  
  http://arduino.cc/en/Tutorial/WifiWebClientRepeating
@@ -38,15 +39,20 @@ void setup() {
   // start serial port:
   Serial.begin(9600);
   
+  // 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);
-    if ( status != WL_CONNECTED) { 
+
-      Serial.println("Couldn't get a wifi connection");
-      while(true);
-    } 
     // wait 10 seconds for connection:
     delay(10000);
   } 

WiFi/examples/WifiWebServer/WifiWebServer.ino

@@ -13,7 +13,7 @@
  
  created 13 July 2010
  by dlf (Metodo2 srl)
- modified 23 Apr 2012
+ modified 31 May 2012
  by Tom Igoe
  */
 #include <SPI.h>
@@ -32,11 +32,20 @@ void setup() {
   // start serial port:
   Serial.begin(9600);
   
+  // 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);
   }