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Merge branch 'master' of github.com:arduino/wifishield

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mlafauci 2011-06-02 16:44:49 +02:00
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99
WiFi/examples/WifiChatServer/WifiChatServer.ino Normal file
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/*
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>
#include <IPAddress.h>
char ssid[] = "yourWifiNetwork";
char pass[] = "seekrit-password";
int status = WL_IDLE_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) {
// start listening for clients
server.begin();
Serial.println("Wifi shield is idle");
// report the IP address:
IPAddress myIPAddress = WiFi.localIp();
Serial.print("My IP Address: ");
Serial.print(WiFi.localIp()[3]);
Serial.print(".");
Serial.print(WiFi.localIp()[2]);
Serial.print(".");
Serial.print(WiFi.localIp()[1]);
Serial.print(".");
Serial.println(WiFi.localIp()[0]);
} else {
// if you didn't get a wifi connection, report what happened:
switch (status) {
case WL_IDLE_STATUS:
Serial.println("Wifi connection succeeded");
break;
case WL_NO_SSID_AVAIL:
Serial.println("No Wifi network available");
break;
case WL_CONNECT_FAILED:
Serial.println("Wifi connection failed");
break;
case WL_CONNECTION_LOST:
Serial.println("Wifi connection lost");
break;
case WL_DISCONNECTED:
Serial.println("Wifi disconnected");
break;
}
}
}
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:
server.write(thisChar);
// echo the bytes to the server as well:
Serial.print(thisChar);
}
}

129
WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino Normal file
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/*
Twitter Client with Strings
This sketch connects to Twitter using an Ethernet shield. It parses the XML
returned, and looks for <text>this is a tweet</text>
You can use the Arduino Ethernet shield, or the Adafruit Ethernet shield,
either one will work, as long as it's got a Wiznet Ethernet module on board.
This example uses the DHCP routines in the Ethernet library which is part of the
Arduino core from version 1.0 beta 1
This example uses the String library, which is part of the Arduino core from
version 0019.
Circuit:
* Ethernet 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>
#include <IPAddress.h>
char ssid[] = "yourWifiNetwork";
char pass[] = "seekrit-password";
int status = WL_IDLE_STATUS;
// initialize the library instance:
Client client;
const int requestInterval = 60000; // delay between requests
char serverName[] = "api.twitter.com"; // twitter URL
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();
Serial.write(inChar);
// 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(serverName, 80)) {
Serial.println("making HTTP request...");
// make HTTP GET request to twitter:
client.println("GET /1/statuses/user_timeline.xml?screen_name=arduino&count=1 HTTP/1.1");
client.println("HOST: api.twitter.com");
client.println();
}
// note the time of this connect attempt:
lastAttemptTime = millis();
}

78
WiFi/examples/WifiWebClient/WifiWebClient.ino Normal file
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#include <SPI.h>
/*
Web client
This sketch connects to a website (http://www.google.com)
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 21 May 2011
by Tom Igoe
*/
#include <SPI.h>
#include <WiFi.h>
#include <IPAddress.h>
char ssid[] = "yourWifiNetwork";
char pass[] = "seekrit-password";
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");
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(;;)
;
}
}