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authorCristian Maglie <c.maglie@bug.st>2013-08-23 15:59:24 +0200
committerCristian Maglie <c.maglie@bug.st>2013-08-23 15:59:24 +0200
commit540743129b2badb813b703208d121ff14553c147 (patch)
tree6fadb4ebce68e1f0cb298a282be135c23fd156ed /libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
parent073b3ac9d4ae93ac0bb3a91afc65ae9d8f1d5d59 (diff)
parent67c84855c2f3ce99b091a756bb2ca1a016260659 (diff)
Merge branch 'ide-1.5.x' into dev-ide-1.5.x-discovery
Conflicts: app/src/processing/app/Preferences.java app/src/processing/app/debug/Uploader.java
Diffstat (limited to 'libraries/Ethernet/examples/TwitterClient/TwitterClient.ino')
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diff --git a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
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--- a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
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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
- modified 9 Apr 2012
- by Tom Igoe
-
- This code is in the public domain.
-
- */
-#include <SPI.h>
-#include <Ethernet.h>
-
-
-// Enter a MAC address and IP address for your controller below.
-// The IP address will be dependent on your local network:
-byte mac[] = {
- 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x01 };
-IPAddress ip(192,168,1,20);
-
-// initialize the library instance:
-EthernetClient client;
-
-const unsigned long requestInterval = 60000; // delay between requests
-
-char serverName[] = "api.twitter.com"; // twitter URL
-
-boolean requested; // whether you've made a request since connecting
-unsigned 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);
-
- // Open serial communications and wait for port to open:
- Serial.begin(9600);
- while (!Serial) {
- ; // wait for serial port to connect. Needed for Leonardo only
- }
-
-
- // attempt a DHCP connection:
- Serial.println("Attempting to get an IP address using DHCP:");
- if (!Ethernet.begin(mac)) {
- // if DHCP fails, start with a hard-coded address:
- Serial.println("failed to get an IP address using DHCP, trying manually");
- Ethernet.begin(mac, ip);
- }
- Serial.print("My address:");
- Serial.println(Ethernet.localIP());
- // connect to Twitter:
- connectToServer();
-}
-
-
-
-void loop()
-{
- if (client.connected()) {
- if (client.available()) {
- // read incoming bytes:
- char inChar = client.read();
-
- // 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("Connection: close");
- client.println();
- }
- // note the time of this connect attempt:
- lastAttemptTime = millis();
-}
-