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Added option for DNS in all HTTP client examples

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This commit is contained in:
Tom Igoe
2012-03-13 13:00:14 -04:00
parent 84403e2512
commit 01a0e7e3de
4 changed files with 61 additions and 44 deletions
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25
WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino
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@ -13,7 +13,7 @@
Circuit:
* WiFi shield attached to pins 10, 11, 12, 13
created 9 Mar 2012
created 13 Mar 2012
by Tom Igoe
This code is in the public domain.
@ -22,8 +22,9 @@
#include <SPI.h>
#include <WiFi.h>
char ssid[] = "YourNetwork"; // your network SSID (name)
char pass[] = "password"; // your network password (use for WPA, or use as key for WEP)
//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)
int status = WL_IDLE_STATUS; // status of the wifi connection
@ -32,10 +33,13 @@ WiFiClient client;
const unsigned long requestInterval = 30*1000; // delay between requests; 30 seconds
IPAddress server(199,59,149,200); // api.twitter.com
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(199,59,149,200); // numeric IP for api.twitter.com
//char server[] = "api.twitter.com"; // name address for twitter API
boolean requested; // whether you've made a request since connecting
unsigned long lastAttemptTime = 0; // last time you connected to the server, in milliseconds
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
@ -54,25 +58,21 @@ void setup() {
status = WiFi.begin(ssid, pass);
if ( status != WL_CONNECTED) {
Serial.println("Couldn't get a wifi connection");
// stop here and do nothing:
while(true);
}
else {
else {
Serial.println("Connected to wifi");
printWifiStatus();
connectToServer();
}
}
void loop()
{
if (client.connected()) {
if (client.available()) {
// read incoming bytes:
char inChar = client.read();
// print the incoming byte (for debugging):
Serial.write(inChar);
// add incoming byte to end of line:
currentLine += inChar;
@ -118,7 +118,7 @@ void connectToServer() {
if (client.connect(server, 80)) {
Serial.println("making HTTP request...");
// make HTTP GET request to twitter:
client.println("GET /1/statuses/user_timeline.xml?screen_name=arduinoteam HTTP/1.1");
client.println("GET /1/statuses/user_timeline.xml?screen_name=arduino HTTP/1.1");
client.println("Host:api.twitter.com");
client.println("Connection:close");
client.println();
@ -146,3 +146,4 @@ void printWifiStatus() {
}