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author | Federico Fissore <f.fissore@arduino.cc> | 2013-05-13 16:58:10 +0200 |
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committer | Federico Fissore <f.fissore@arduino.cc> | 2013-05-13 16:58:10 +0200 |
commit | b70954ea256f94afdd941e2c89a086887b496c13 (patch) | |
tree | bd9fb74f61b1351a32b8b48cef8f04863d9d6df8 /libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino | |
parent | c48c0f9e2cebe0e3ebda7aa5c4f9096b9586ed9e (diff) | |
parent | 7207108255a772474b322151cb0fd113e8030afe (diff) |
Merge remote-tracking branch 'arduino/ide-1.5.x' into ide-1.5.x-discovery
Diffstat (limited to 'libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino')
-rw-r--r-- | libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino | 111 |
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"); +} + + |