Processing 1.0 - Processing Discourse - Reading an RSS feed character by character.

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Index › Programming Questions & Help › Other Libraries › Reading an RSS feed character by character.

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Reading an RSS feed character by character. (Read 676 times)

mshorter

Reading an RSS feed character by character.
May 1^st, 2009, 2:54am

Hi,
I have managed to take an RSS feed fom twitter using twitter4j and display it on a Processing program, and what I am now trying to do is read the feed character by character so that I can send the data to an arduino. I am unsure where to start with this, can anyone give me any hints or tips?

Here is what I have so far........

void setup(){
size (500,125);

}
void draw(){

int startingPoint = 0;
Twitter twitter;
int myFriendsCount;
User[] friends;
String username = "username";
String password = "password";
twitter = new Twitter(username,password);
String myTimeline;
PFont font;
// Setup font
font = loadFont("CourierNew36.vlw");
textFont(font, 24);
size (500,150);
background (0);

text("hello twit",20,60);

try
{
java.util.List statuses = twitter.getUserTimeline();
//List statuses = twitter.getUserTimeline();

Status status = (Status)statuses.get(0);
println(status.getUser().getName() + ":" + status.getText());
text(status.getText(), 20, 30);
}
catch( TwitterException e)
{
// catch error here
}
delay(120000);
loop();
}

Cheers,
Mike

seltar

Re: Reading an RSS feed character by character.
Reply #1 - May 1^st, 2009, 5:20am

well.. several ways to do it..
this is how you send data from processing to arduino;
http://dma.ucla.edu/senselab/node/353

and to read each character in a String (String text = status.getText() Wink

i think this should work;
for(int i = 0 ; i < text.length(); i++){
char c = text.charAt(i);
// send the char with the code in the link above
}

I'm bored, therefore I program
http://seltar.org > seltar's special place
http://snippet.seltar.org > seltar's snippet palace
http://libraries.seltar.org > seltar's libraries

mshorter

Re: Reading an RSS feed character by character.
Reply #2 - May 1^st, 2009, 7:55am

Thanks Seltar,
I have no problems with getting data to the arduino, but thanks for your suggestions. Do I just need to put the code you suggested:

{
String text = status.getText() ;
for(int i = 0 ; i < text.length(); i++);
}{
char c = text.charAt(i);
}

Just after this bit of my code....

Status status = (Status)statuses.get(0);
println(status.getUser().getName() + ":" + status.getText());
text(status.getText(), 20, 30);

Or is it instead of it?? Sorry if this sounds like a stupid question, I'm quite new to Processing/Arduino and this is by far the most technical thing I've done.

Cheers,

Mike

seltar

Re: Reading an RSS feed character by character.
Reply #3 - May 12^th, 2009, 8:41am

Sorry for the late reply.
Code:


Status status = (Status)statuses.get(0);
String text = status.getText();
for(int i = 0 ; i < text.length(); i++){
 char c = text.charAt(i);
 // HERE you need to insert the code to send each char to the arduino
 // something like this, if you named your variable of Serial 'port'
 port.write(c); // write the character we're currently at
} 

// display it (i guess, since you had it in your code already)
println(status.getUser().getName() + ":" + status.getText());
text(status.getText(), 20, 30);

I'm bored, therefore I program
http://seltar.org > seltar's special place
http://snippet.seltar.org > seltar's snippet palace
http://libraries.seltar.org > seltar's libraries

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