Question

TV Remote Control via Cellular Phone

Asked by: graffika

After browsing through all available topics pertaining to J2ME implementation on mobile devices, i saw no issues was drawn up about mobile phone being deployed as remote control. Not pda based phone (eg p800/p900 etc) but rather , a pure empty phone such as (eg T610).

Basically, using the InfraRed port . Not bluetooth , not cable , but INFRARED. I think i know the  consumer based infrared distance ..( 5 meters?)

I have a few questions in mind as im currently not quite sure whether TV Remote Control would work on T610 (the phone im using).

The codes on Pda-based i believe is running on CDC , as opposed to Cellular Phones CLDC since the memory is kinda limited to only 2MB. My question is , is it possible to port PDA-based remote control to cellular phone based by changing the codes and implement it in CLDC without much problems ?

Any insights , perhaps useful links directly linking mobile phone to the software or is there currently a software available in the market for mobile phone? What are the things i need to look out for besides screen size, loading time and etc that i find from J2ME reference books?

Thanks :>

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Asked On
2004-02-24 at 21:38:07ID20897034
Tags

remote

,

tv

,

control

,

phone

Topics

Wireless Technologies

,

Cellular Phones & Carriers

Participating Experts
2
Points
125
Comments
6

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Answers

 

by: jimmackPosted on 2004-02-25 at 04:08:31ID: 10449575

You'll need to get access to manufacturer or device specific APIs in order to use the IR capabilities of the phone.

Porting from CDC to CLDC is probably going to be quite a significant task.  Certainly all the UI will need to be replaced to use the MIDP lcdui display management methods.

The first thing you need to do is to check the manufacturers site for the T610 to see if an IR API is available for J2ME.  If it isn't, then you can't do what you want.

 

by: graffikaPosted on 2004-02-25 at 21:44:56ID: 10457601

well , in the manufacturer site , they stated this


*Note: Currentyly the T610/T616/T618 and Z600 phones have infrared,bluetooth and serial connectivity , but these are currently not supported from Java

what does this mean ? it means we can use J2ME apps on condition no accessing the API's of the connectivity?

Jim , under such conditions if im unable to create a J2ME app accessing the API's, will an emulator be able to perform such a task  ? All i have to do is not implementing it? But if im not implementing it , i might have problem handing up my deg. project. Any alternatives that you can suggest?

 

by: graffikaPosted on 2004-02-26 at 00:38:19ID: 10458217

"However, this protection scheme has its downside. Stated simply, if an API isn’t defined for a specific hardware feature, a developer can’t use that feature. For example, the Sony Ericsson T610 handset comes with an army of features: Bluetooth networking, infrared and serial connectivity, and a built-in digital camera. However, the current APIs in the T610’s J2ME implementation don’t utilize these features. Instead, you must use C++ and the Symbian OS (which lies under the J2ME abstraction layers) to access them"


i picked this up from Infoworld. What does this mean ? it means i must use C++ to code ? symbian os is an operating system for Cell phone.what does it have to do with C++ ?

 

by: jimmackPosted on 2004-02-27 at 04:06:02ID: 10468458

Yes, this does (unfortunately) mean that you can't use J2ME to access the Bluetooth, IR etc. facilities.  I'm not sure where you can get a development kit for C++/Symbian, or how you get applications that you write onto the phone.  C++/Symbian on mobile devices isn't really my bag, so I don't really know what to suggest here.  Perhaps a visit to the Motorola and Symbian sites.

http://www.motocoder.com
http://www.symbian.com/developer/index.html

 

by: Mikal613Posted on 2004-10-05 at 08:39:30ID: 12227821

No comment has been added to this question in more than 21 days, so it is now classified as abandoned..
I will leave the following recommendation for this question in the Cleanup topic area:

Accept  jimmack

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

Mikal613
EE Cleanup Volunteer

20120131-EE-VQP-002

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