#define yellow 3
#define blue 4
#define white 5
#include "WiFly.h"
String twitterUsername = "NickysLights"; //set the twitter user you'd like to get here.
char ssid[] = “…”; //enter your ssid here.
char passphrase[] = “…”; //enter your passphrase here.
const unsigned long requestInterval = 1000; // delay between requests
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
Client client(“api.twitter.com”, 80);
void setup() {
currentLine.reserve(256);
tweet.reserve(150);
Serial.begin(9600);
WiFly.begin();
//Define LED pin Modes
pinMode(yellow, OUTPUT);
pinMode(blue, OUTPUT);
pinMode(white, OUTPUT);
//set initial values for leds as low
digitalWrite(yellow, LOW);
digitalWrite(blue, LOW);
digitalWrite(white, LOW);
if (!WiFly.join(ssid,passphrase)) {
Serial.println(“Association failed.”);
while (1) {
// Hang on failure.
}
}
Serial.println(“connecting…”);
}
void loop() {
if(client.connected()){
if (client.available()) {
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 ( 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);
char tweet = Serial.read();
checkAction();
// 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()) {
Serial.println(“making HTTP request…”);
// make HTTP GET request to twitter:
client.println(“GET /1/statuses/user_timeline.xml?screen_name=”+twitterUsername + “&count=1 HTTP/1.1”);
client.println(“HOST: api.twitter.com”);
client.println();
}
// note the time of this connect attempt:
lastAttemptTime = millis();
}
void checkAction() {
if (tweet == “>yellow on”)
{
digitalWrite(yellow, HIGH);
digitalWrite(blue, LOW);
digitalWrite(white, LOW);
}
else if (tweet == “>blue on”)
{
digitalWrite(blue, HIGH);
digitalWrite(yellow, LOW);
digitalWrite(white, LOW);
}
else if (tweet == “>white on”)
{
digitalWrite(white, HIGH);
digitalWrite(blue, LOW);
digitalWrite(yellow, LOW);
}
else if (tweet == “>all off”)
{
digitalWrite(yellow, LOW);
digitalWrite(blue, LOW);
digitalWrite(white, LOW);
}
else if (tweet == “>all on”)
{
digitalWrite(yellow, HIGH);
digitalWrite(blue, HIGH);
digitalWrite(white, HIGH);
}
}
