[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-07-21 Thread François Légaré 
That's normal it's called gravitational acceleration (the gravity!), on a
very flat surface you should get 9.81 m/s^2
On Tue, Jul 21, 2009 at 11:51 PM, Mike Collins wrote:

>
> Interesting.  I was actually looking to calibrate the accelerometers.
> This
> didn't seem to have any effect on those.  My X is always about 1.0 and
> Y
> about 8.0 sitting on a desk.
>
> thanks,
>  mike
>
>
> On Jul 21, 10:33 am, François Légaré  wrote:
> > The competition is more clear about the subject :P
> > Here what Mr. 3Gs have to say about the 8 gestures:
> http://mcall.com.com/i/bto/20090622/compcal_270x404.jpg
> >
> > By the way it really work...
> >
> > On Tue, Jul 21, 2009 at 7:18 PM, Mike Collins  >wrote:
> >
> >
> >
> >
> >
> > > Can you be a bit more explicit about what you mean by
> > > "making a bit 8-like gesture".  I'm having no luck getting
> > > the sensor to make much sense.
> >
> > >  mike
> >
> > > On Jun 16, 3:31 pm, flegare  wrote:
> > > > I auto answer myself and the poor soul who fall on this post, so far
> > > > the only way to calibrate is by making big 8-like gesture with the
> > > > phone. Try it it worked for me.
> >
> > > > François Légaréwww.mobidroid.com
> 
> >
> > > > On 9 juin, 16:56, flegare  wrote:
> >
> > > > > Hi there android super humans,
> >
> > > > > Reading thesensorAPI (
> http://developer.android.com/reference/android/
> > > > > hardware/SensorManager.html) The section about ACCURACY speak about
> > > > >calibration:
> >
> > > > > "calibrationwith the environment is needed"
> >
> > > > > How do it calibrate?! Is this softwarecalibration? Phone specific
> > > > >calibration??
> >
> > > > > I don't see any methods to calibrate.
> >
> > > > > Using the HTC Magic the compass often give me crazy values like if
> I
> > > > > was on the magnetic pole. I feel pretty scared and hide under a
> > > > > tinfoil hat just in case...
> >
> > > > > So any url, doc or explanation will be appreciate!
> >
> > > > > Cheers,
> >
> > > > > François Légaréwww.mobidroid.com-Hide quoted text -
> >
> > > > - Show quoted text -- Hide quoted text -
> >
> > - Show quoted text -
> >
>

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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-07-21 Thread Mike Collins 

Interesting.  I was actually looking to calibrate the accelerometers.
This
didn't seem to have any effect on those.  My X is always about 1.0 and
Y
about 8.0 sitting on a desk.

thanks,
  mike


On Jul 21, 10:33 am, François Légaré  wrote:
> The competition is more clear about the subject :P
> Here what Mr. 3Gs have to say about the 8 
> gestures:http://mcall.com.com/i/bto/20090622/compcal_270x404.jpg
>
> By the way it really work...
>
> On Tue, Jul 21, 2009 at 7:18 PM, Mike Collins wrote:
>
>
>
>
>
> > Can you be a bit more explicit about what you mean by
> > "making a bit 8-like gesture".  I'm having no luck getting
> > the sensor to make much sense.
>
> >  mike
>
> > On Jun 16, 3:31 pm, flegare  wrote:
> > > I auto answer myself and the poor soul who fall on this post, so far
> > > the only way to calibrate is by making big 8-like gesture with the
> > > phone. Try it it worked for me.
>
> > > François Légaréwww.mobidroid.com
>
> > > On 9 juin, 16:56, flegare  wrote:
>
> > > > Hi there android super humans,
>
> > > > Reading thesensorAPI (http://developer.android.com/reference/android/
> > > > hardware/SensorManager.html) The section about ACCURACY speak about
> > > >calibration:
>
> > > > "calibrationwith the environment is needed"
>
> > > > How do it calibrate?! Is this softwarecalibration? Phone specific
> > > >calibration??
>
> > > > I don't see any methods to calibrate.
>
> > > > Using the HTC Magic the compass often give me crazy values like if I
> > > > was on the magnetic pole. I feel pretty scared and hide under a
> > > > tinfoil hat just in case...
>
> > > > So any url, doc or explanation will be appreciate!
>
> > > > Cheers,
>
> > > > François Légaréwww.mobidroid.com-Hide quoted text -
>
> > > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-07-21 Thread François Légaré 
The competition is more clear about the subject :P
Here what Mr. 3Gs have to say about the 8 gestures:
http://mcall.com.com/i/bto/20090622/compcal_270x404.jpg

By the way it really work...


On Tue, Jul 21, 2009 at 7:18 PM, Mike Collins wrote:

>
> Can you be a bit more explicit about what you mean by
> "making a bit 8-like gesture".  I'm having no luck getting
> the sensor to make much sense.
>
>  mike
>
>
>
> On Jun 16, 3:31 pm, flegare  wrote:
> > I auto answer myself and the poor soul who fall on this post, so far
> > the only way to calibrate is by making big 8-like gesture with the
> > phone. Try it it worked for me.
> >
> > François Légaréwww.mobidroid.com 
> >
> > On 9 juin, 16:56, flegare  wrote:
> >
> >
> >
> > > Hi there android super humans,
> >
> > > Reading thesensorAPI (http://developer.android.com/reference/android/
> > > hardware/SensorManager.html) The section about ACCURACY speak about
> > >calibration:
> >
> > > "calibrationwith the environment is needed"
> >
> > > How do it calibrate?! Is this softwarecalibration? Phone specific
> > >calibration??
> >
> > > I don't see any methods to calibrate.
> >
> > > Using the HTC Magic the compass often give me crazy values like if I
> > > was on the magnetic pole. I feel pretty scared and hide under a
> > > tinfoil hat just in case...
> >
> > > So any url, doc or explanation will be appreciate!
> >
> > > Cheers,
> >
> > > François Légaréwww.mobidroid.com- Hide quoted text -
> >
> > - Show quoted text -
> >
>

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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-07-21 Thread Mike Collins 

Can you be a bit more explicit about what you mean by
"making a bit 8-like gesture".  I'm having no luck getting
the sensor to make much sense.

  mike



On Jun 16, 3:31 pm, flegare  wrote:
> I auto answer myself and the poor soul who fall on this post, so far
> the only way to calibrate is by making big 8-like gesture with the
> phone. Try it it worked for me.
>
> François Légaréwww.mobidroid.com
>
> On 9 juin, 16:56, flegare  wrote:
>
>
>
> > Hi there android super humans,
>
> > Reading thesensorAPI (http://developer.android.com/reference/android/
> > hardware/SensorManager.html) The section about ACCURACY speak about
> >calibration:
>
> > "calibrationwith the environment is needed"
>
> > How do it calibrate?! Is this softwarecalibration? Phone specific
> >calibration??
>
> > I don't see any methods to calibrate.
>
> > Using the HTC Magic the compass often give me crazy values like if I
> > was on the magnetic pole. I feel pretty scared and hide under a
> > tinfoil hat just in case...
>
> > So any url, doc or explanation will be appreciate!
>
> > Cheers,
>
> > François Légaréwww.mobidroid.com- Hide quoted text -
>
> - Show quoted text -
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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-06-23 Thread Delta Foxtrot 
2009/6/23 Gryyphyn 

>
> I haven't looked through the source for the compass but there has to
> be a set() method that you can apply a positive or negative value to,
> possibly on tha app level. The compass is accurate enough so all you
> would really have to do is assign a set() method to a menu calibration
> option to allow the user to align with a standard compass and set the
> value that modifies the OSD compass alignment, similar to the bubble
> app and its calibration with the accelerometers. Just a thought...
>

The callibration for the accelerometers isn't to calibrate the sensors, but
to figure out which way the phone is pointing and then use that information
along with some fancy maths to display correctly.

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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-06-23 Thread Gryyphyn 

I haven't looked through the source for the compass but there has to
be a set() method that you can apply a positive or negative value to,
possibly on tha app level. The compass is accurate enough so all you
would really have to do is assign a set() method to a menu calibration
option to allow the user to align with a standard compass and set the
value that modifies the OSD compass alignment, similar to the bubble
app and its calibration with the accelerometers. Just a thought...

Gryyphyn, out.

On Jun 16, 10:21 pm, Delta Foxtrot  wrote:
> 2009/6/17 flegare 
>
>
>
> > I auto answer myself and the poor soul who fall on this post, so far
> > the only way to calibrate is by making big 8-like gesture with the
> > phone. Try it it worked for me.
>
> Yes, the digital compass in the G1 is self calibrating, but you have to make
> figure 8's or similar to make it do it, this isn't something you can do in
> software, the Android OS has magnetic field projections for the earth and if
> the current reading falls outside a specific range either something is
> artificially influencing it, such as the magnetic field in metals or
> electromagnetic fields caused by electronics and cars etc, or it needs
> calibration.

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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-06-16 Thread Delta Foxtrot 
2009/6/17 flegare 

>
> I auto answer myself and the poor soul who fall on this post, so far
> the only way to calibrate is by making big 8-like gesture with the
> phone. Try it it worked for me.


Yes, the digital compass in the G1 is self calibrating, but you have to make
figure 8's or similar to make it do it, this isn't something you can do in
software, the Android OS has magnetic field projections for the earth and if
the current reading falls outside a specific range either something is
artificially influencing it, such as the magnetic field in metals or
electromagnetic fields caused by electronics and cars etc, or it needs
calibration.

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[android-developers] Re: Calibration with the environment may improve the readings ?!

2009-06-16 Thread flegare 

I auto answer myself and the poor soul who fall on this post, so far
the only way to calibrate is by making big 8-like gesture with the
phone. Try it it worked for me.

François Légaré
www.mobidroid.com

On 9 juin, 16:56, flegare  wrote:
> Hi there android super humans,
>
> Reading the sensor API (http://developer.android.com/reference/android/
> hardware/SensorManager.html) The section about ACCURACY speak about
> calibration:
>
> "calibration with the environment is needed"
>
> How do it calibrate?! Is this software calibration? Phone specific
> calibration??
>
> I don't see any methods to calibrate.
>
> Using the HTC Magic the compass often give me crazy values like if I
> was on the magnetic pole. I feel pretty scared and hide under a
> tinfoil hat just in case...
>
> So any url, doc or explanation will be appreciate!
>
> Cheers,
>
> François Légaréwww.mobidroid.com
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