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Posts: 5 | Thanked: 0 times | Joined on Jan 2010
#1
Will the N900 allow Bluetooth data transfer when the cellular radios (2g, 3g, etc.) are turned off?

I am looking for a device that will receive data over Bluetooth from an instrument (i.e., the Zephyr BioHarness using the open source zephyropen software**).

I'm considering both Android and Maemo. Not yet sure which will do the job. But ot of the box, the Droid does not allow Bluetooth to be turned on when in airplane mode. It is a requirement that we operate the phone with all cellular radios turned off and WiF + BT turned on. So, will the N900 allow this?

While searching around I found an app called switchOnBT 1.0.4. Does this run on N900? And would it support my needs?

** Zephyr Open is a code project to provide a framework for BlueTooth Physiological Sensors.

Last edited by Qipulse; 2010-01-04 at 16:30.
 
Shaichico's Avatar
Posts: 80 | Thanked: 8 times | Joined on Nov 2009 @ Stockholm (formally Amsterdam, London)
#2
Offline mean just that....

Cell off
WiFi + Bluetooth on

There is a app in test which turns the cell off only without having to turn the Wifi and BT on again once offiline. This was one of my main requirements when choosing and most nokia phones do this by standard (frm experience)
 
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#3
Originally Posted by Shaichico View Post
Offline mean just that....

Cell off
WiFi + Bluetooth on

There is a app in test which turns the cell off only without having to turn the Wifi and BT on again once offiline. This was one of my main requirements when choosing and most nokia phones do this by standard (frm experience)
Thanks for the quick reply. Does the app in test actually work on the N900?

You say that "most" Nokia phones do this, but you don't explicitly say if you have actually tried it on the N900. I assume you have and that you are saying, "yes it works" but I just want to be sure because you know what they say about making assumptions (right?). If the app is in the test repo, is it stable? Thanks.
 
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#4
I see a related thread just popped up:
http://talk.maemo.org/showthread.php...695#post452695
 
Posts: 271 | Thanked: 220 times | Joined on Sep 2009
#5
I can confirm that the "cellular-off" (called "Cellular Modem Control Buttons") app does indeed work, and that the bluetooth radio is still available once the cellular radio has been turned off with the app. A very nice little piece of software...kudos to the author.

Last edited by texaslabrat; 2010-01-04 at 18:29.
 
Fargus's Avatar
Posts: 1,217 | Thanked: 446 times | Joined on Oct 2009 @ Bedfordshire, UK
#6
Originally Posted by Qipulse View Post
Will the N900 allow Bluetooth data transfer when the cellular radios (2g, 3g, etc.) are turned off?

I am looking for a device that will receive data over Bluetooth from an instrument (i.e., the Zephyr BioHarness using the open source zephyropen software**).

I'm considering both Android and Maemo. Not yet sure which will do the job. But ot of the box, the Droid does not allow Bluetooth to be turned on when in airplane mode. It is a requirement that we operate the phone with all cellular radios turned off and WiF + BT turned on. So, will the N900 allow this?

While searching around I found an app called switchOnBT 1.0.4. Does this run on N900? And would it support my needs?

** Zephyr Open is a code project to provide a framework for BlueTooth Physiological Sensors.
Surely the point of 'Airplane' mode though is to remove all RF Interference so therefore all radio stacks should be quiet?

I see this is a different use case but worth considering a request to have the menu updated by Nokia? If the solution is available it should hopefully be a simple exercise.
 
Posts: 5 | Thanked: 0 times | Joined on Jan 2010
#7
Originally Posted by Fargus View Post
Surely the point of 'Airplane' mode though is to remove all RF Interference so therefore all radio stacks should be quiet?

I see this is a different use case but worth considering a request to have the menu updated by Nokia? If the solution is available it should hopefully be a simple exercise.

Maybe the ultimate solution would be:
1. allow individual control of each radio for those who need it
2. have a mode ("airplane mode") that shuts off all radios
4. allow user to create settings profiles that can implement any combination of off/on for any radios so a user can switch radio profiles with one click.

FWIW, I seriously doubt that BT would interfere with airplane navigation/communication instruments... do they allow BT headsets to be turn on while the plan is taking off? (It has been a while since I've flown. Flying is no fun anymore with all the security checks now.)

BTW, even on Droid, it is possible to have WiFi on while in "airplane mode". It would make sense that this would be true for BT if it is true for WiFI, but, strangely, that's not how the Droid works.
 
Posts: 5,335 | Thanked: 8,187 times | Joined on Mar 2007 @ Pennsylvania, USA
#8
Originally Posted by Qipulse View Post
do they allow BT headsets to be turn on while the plan is taking off?
No. Bluetooth is disallowed even during flight.

Rules don't stop the true rebels though.

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Posts: 271 | Thanked: 220 times | Joined on Sep 2009
#9
Originally Posted by Fargus View Post
Surely the point of 'Airplane' mode though is to remove all RF Interference so therefore all radio stacks should be quiet?

I see this is a different use case but worth considering a request to have the menu updated by Nokia? If the solution is available it should hopefully be a simple exercise.
In today's environment, there are two different "airplane modes" that are applicable. One is the "all RF stuff off" mode for takeoffs and landings (as you've alluded to). The second is the "cruising..you may now use approved portable electronic devices" mode..which include bluetooth and WiFi stuff on some (not all) airlines.

The app referenced above works perfectly for the second, and the "offline" mode works great for the first (though technically the "switch off" is what should be used according to the powers-that-be, as they request you turn off the devices, not just the radios).
 
Posts: 14 | Thanked: 35 times | Joined on Dec 2009 @ Ireland
#10
It's Linux - I don't see why it would not be possible.

For example:

1) Turn on Bluetooth/Wifi from the normal menu
2) Open an X terminal as root
3) /sbin/ifconfig phonet0 down

Step 3 disables the cell radio, leaving everything else up. I'm sure it can be done from the regular menus too.

Last edited by pwngu!n; 2010-01-04 at 19:03.
 

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