How can I tag two Nokia C7-00 device using NFC ?

[riyazinteractive]

Hi,

Can any tell me, how can I tag two Nokia C7-00 devices by NFC using Java API?

Is there any demo app that can establish NFC connection between two Nokia C7-00 devices ?

Thanks

[mahbub_s60]

According to this looks we can have peer to peer connection
http://www.developer.nokia.com/Commu...131_NFC_-_FAQs

See Does the Nokia 6131 NFC SDK support NFCIP-1 connection? If so, how can I use that?
Java API works with C7 so we can built example easily, try...

[riyazinteractive]

import javax.microedition.contactless.ContactlessException;
import javax.microedition.contactless.DiscoveryManager;
import javax.microedition.contactless.TargetListener;
import javax.microedition.contactless.TargetProperties;
import javax.microedition.contactless.TargetType;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

// Simple MIDlet to read the serial number of NDEF tag
public class ReadSerial extends MIDlet implements TargetListener {

private Form form;
private TextField textField;

protected void startApp() throws MIDletStateChangeException {
// Get instance of NFC Discovery Manager
DiscoveryManager dm = DiscoveryManager.getInstance();

// Register NDEF_TAG target to discovery
try {
dm.addTargetListener(this, TargetType.NDEF_TAG);
} catch (IllegalStateException e) {
// Catch IllegalStateException
} catch (ContactlessException e) {
// Catch ContactlessException
}

// Initialize and show user interface elements
form = new Form("ReadSerial");
textField = new TextField("Unique identifier:", "", 0, TextField.UNEDITABLE);
form.append(textField);
Display.getDisplay(this).setCurrent(form);
}

protected void pauseApp() {
}

protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
}

public void targetDetected(TargetProperties[] prop) {
// Set unique identifier of the detected target on the Text Field
textField.setString(prop[0].getUid());
}

}


Its a simple tag reader app to find out uid of tag writer, but still its not working on two C7 devices....

[mahbub_s60]

Hi,

You can see working example from this page http://www.developer.nokia.com/Commu..._Code_Examples and compare your one to find the problem

[riyazinteractive]

I have tried all these example between two Nokia C7-00 devices but none of them were working... Can u suggest me any other solution?

[mahbub_s60]

At least Symbian C++ examples work for sure. I have done some test. But I have not used J2ME much.
Does it help you if you use Qt/QML/Symbian C++? These gives you more control over the device.

[mroland]

Hallo,

the C7 cannot operate as NFC tag. Therefore, your code (TargetListener) will not work for your scenario. I don't know if peer-to-peer communication is supported in the C7's Java implementation, but as mahbub suggests, you can stick to Qt, ...

br
Michael