[mimmesmo]

I would like to know why Nokia doesn't support the "comm:" connection descriptor for it's Java J2ME phones with serial port?

We created interesting products using serial port connection on other J2ME devices with J2ME and we would like to do it with Nokia phones.

I would like to know why Nokia doesn't support it and if it will be supported on newer phone models.

Thanks.

[munlee]

hi

i'm also interested in developing j2me applications for a phone which communicates data through cable to pc (possibly serial).

could your tell me which other phones/models you have tested will support j2me with serial port?

thanks!

[akolesar]

I'm also interested in this problem. I would like to get GPS position via serial cable. Could anybody work around this issue?

[timwilliams1971]

Just like to add that I, too, am interested in this. There are loads of legacy devices out there that support RS232, so how can I access the port on the phone?

-- Tim

[reginr]

Hi guys!, I would like to add my self on the list :), I guess the reason they didnt include it is because of security reason, imagine downloading a java application that secretly communicates with other devices giving out information ..... (if its possible)

[graywolf]

Due to the fact that I had to buy a new series 40 phone, I was being very curious to use it with embedded systems.

However it now unfortunately looks like it is not possible to use neither serial nor infrared connection via java applications. I say that this is being a big fault but guess the Nokia knows what it is doing..

[reginr]

Hi graywolf! thanks for reply, however I cant stop wondering why did nokia supported c++ /symbian for bluetooth, irda and serial access?

[graywolf]

I've done searches on this forum (and least one other) about IrDa and Pop-port serial interface for more information. All replies to those questions I've seen have been 'sorry, it is not possible'.

However I haven't seen any replies that would have explained why it is not made to be possible with current J2ME API. That was one thing that Mimmesmo was trying to ask about. Or maybe we all have missed that reply at some point, I don't know.

[reginr]

hmmm... is it that nokia maybe ".NET" freindly rather than java?... or has the intention of supporting .NET?

[jcovner]

The issue is with the sandbox security model of Java. And phone manufacturers don't want people hacking the phones.

Now...I've heard it may be possible with the Symbian Series 60 phones. Anyone know how/where that information is?

[amattiuz]

If thre is no way to use seral port communication wiht J2ME, does anybody knows if we can use it with Symbian or C++ or another thing???

And how about MIDP 2.0 devices??? I have read that MIDP 2.0 devices can use this kind of communication...

[maffeis]

Access to the serial port through the MIDP connection framework
is an optional feature in MIDP 1.0 (and 2.0). If the MIDP implementation supports the serial protocol, then you can try something like
StreamConnection sc = (StreamConnection)Connector.open("comm:0;baudrate=9600");

Good luck ;-)

silvano

[amattiuz]

Thanks!!! ;o)

It works on emulators.....
Is there any NOKIA device that support this kind of connection?? 7650???

[maffeis]

The Motorola i85 supports that, AFAIK.
I'm not sure about Nokia devices, probably not I'm afraid.

silvano

[amattiuz]

Well, then I think it is not possible to connect anything to the serial port using J2ME.... I´d like to connect a GPS, but I think I´m gonna have to use another language or another way to connect...
Does anybody have any ideas???