1 files changed, 111 insertions, 0 deletions
diff --git a/libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino b/libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino
new file mode 100644
index 0000000..e4b1d1a
--- /dev/null
+++ b/libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino
@@ -0,0 +1,111 @@
+/*
+ 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 is written for a network using WPA encryption. For 
+ WEP or WPA, change the Wifi.begin() call accordingly.
+ 
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 18 Dec 2009
+ by David A. Mellis
+ modified 31 May 2012
+ by Tom Igoe
+ 
+ */
+
+#include <SPI.h>
+#include <WiFi.h>
+
+char ssid[] = "yourNetwork"; //  your network SSID (name) 
+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;
+
+WiFiServer server(23);
+
+boolean alreadyConnected = false; // whether or not the client was connected previously
+
+void setup() {
+  //Initialize serial and wait for port to open:
+  Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo 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);
+  } 
+  // start the server:
+  server.begin();
+  // you're connected now, so print out the status:
+  printWifiStatus();
+ }
+
+
+void loop() {
+  // wait for a new client:
+  WiFiClient client = server.available();
+
+
+  // when the client sends the first byte, say hello:
+  if (client) {
+    if (!alreadyConnected) {
+      // clead out the input buffer:
+      client.flush();    
+      Serial.println("We have a new client");
+      client.println("Hello, client!"); 
+      alreadyConnected = true;
+    } 
+
+    if (client.available() > 0) {
+      // read the bytes incoming from the client:
+      char thisChar = client.read();
+      // echo the bytes back to the client:
+      server.write(thisChar);
+      // echo the bytes to the server as well:
+      Serial.write(thisChar);
+    }
+  }
+}
+
+
+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");
+}
+
+