Processing 1.0 - Processing Discourse - New library: touchatag RFID readers on Processing

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Index › Processing Development › Libraries, Tool Development › New library: touchatag RFID readers on Processing

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New library: touchatag RFID readers on Processing (Read 8094 times)

Augusto

New library: touchatag RFID readers on Processing
Mar 28^th, 2010, 5:01am

Developed a library for Processing that allows users to connect and read from cheap touchatag RFID readers on the Windows platform.

This library affords the simultaneously connection of multiple readers, and up to three tags on each one (due to performance issues of the tags themselves on the touchatag reader). This project was tested on Windows 7 Professional and Windows XP SP3, with Processing 1.0.9.

You can download it here. For this library to work, users only need to install the Windows CCID PCSC driver, the touchatag software client isn't necessary. For more information head to the library's page on Google code.

Example:
Code:

import touchatag.*;
Touchatag rfid;

// Defines the maximum number of touchatag
// readers that might be connected to the computer 
int numOfReaders = 3;

// This library affords up to three touchatag
// tags on each of the touchatag readers
String[][] tags = new String[numOfReaders][3];

void setup() {
  // Optionally, if only one touchatag reader will
  // be used: rfid = new Touchatag(this) 
  rfid = new Touchatag(this, numOfReaders);
}

void draw() {
  // Gets the number of touchatag readers connected
  int readers = rfid.On();
  
  if (readers != 0) {
     // Gets the tags for each of the touchatag readers
     for (int i = 0; i < readers; i++) {
	 tags[i] = rfid.tagsOnReader(i);
	 println(tags[i]);
     }  
   }
}

« Last Edit: Mar 28^th, 2010, 3:29pm by Augusto »

Cedric God Member Offline Posts: 1838	Re: New library: touchatag RFID readers on Processing Reply #1 - Mar 28^th, 2010, 5:29am thats pretty nice. i made some little projects using arduino and an rfid receiver. but this seems much easier. I will definitely use it for the next rfid project
	twitter.com/CedricKiefer

Augusto Junior Member Offline Posts: 55 Portugal	Re: New library: touchatag RFID readers on Processing Reply #2 - Apr 1^st, 2010, 3:23pm If anyone has any advice on extra functionality just let me know
	« Last Edit: Apr 23^rd, 2010, 8:52am by Augusto »

.hj barraza YaBB Newbies Offline Posts: 3 Mexico	Re: New library: touchatag RFID readers on Processing Reply #3 - May 2^nd, 2010, 2:49pm I now wish i had purchased touchatag instead of violets mir:ror I cant seem to get it to properly work on Mac OS. Would you guys recommend Touchatag over any other "consumer" reader?
	live well do good love all be pure

Augusto

Re: New library: touchatag RFID readers on Processing
Reply #4 - Jun 2^nd, 2010, 9:28am

.hj barraza wrote on May 2^nd, 2010, 2:49pm:

I now wish i had purchased touchatag instead of violets mir:ror I cant seem to get it to properly work on Mac OS.

Would you guys recommend Touchatag over any other "consumer" reader

I've only worked with the touchatag readers, but they are cheap and reliable enough

UndeadIwag

Re: New library: touchatag RFID readers on Processing
Reply #5 - Jun 14^th, 2010, 1:25pm

I thinks it's really great that you made a library so we don't have to rely on the crapy software provided.

One thing though... I can't get it working. I am new to programming but I would really like to get this thing working.

**
Sorry for my previous post. I'm there now, it just took me a little while.
I can open the example code now, but when I try to run it I get this error:

java.lang.NullPointerException
at processing.app.debug.Compiler.contentsToClassPath(Unknown Source)
at processing.app.Sketch.preprocess(Unknown Source)
at processing.app.Sketch.preprocess(Unknown Source)
at processing.app.Sketch.build(Unknown Source)
at processing.app.Sketch.build(Unknown Source)
at processing.app.Editor$DefaultRunHandler.run(Unknown Source)
at java.lang.Thread.run(Thread.java:619)

What am I doing wrong this time.

Thanks for any help in advance.
**

Ps I tried starting a new topic, but I coun't find the touchatag chapter in the forum.

« Last Edit: Jun 17^th, 2010, 10:40am by UndeadIwag »

Augusto Junior Member Offline Posts: 55 Portugal	Re: New library: touchatag RFID readers on Processing Reply #6 - Jun 18^th, 2010, 4:34am UndeadIwag, are you running the library in Windows? Do you get that error in the example provided?

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