Re: [gaggle] Actual Barometer built into latest Android phone (anyone want this feature?)

[Kevin Hester]

Wow - that is awesome. I'll see about upgrading. I almost certainly
know the chip they used - the same three wire SPI device that the
FlyTec folks use. Totally suited to adding real vario functions.

In fact: If ten folks were to pledge $20 each, I'd definitely upgrade
and add full vario functionality by Feb 15th.

On Wed, Dec 8, 2010 at 1:32 AM, Mike Mackay <mike.m...@btinternet.com> wrote:
> Kevin
>
> Ive read somewhere that the Google/Samsung Nexus S, just released, has
> a physical barometer built in - aswell as the usual array of
> accelerometers, and now also assisted-gps.  Knowing a little about the
> underlying chip technology and the need for competitors to, well,
> compete,  I can foresee that many phones emerging in the next year
> will have barometer built in.    Making it at least feasible that an
> android app such as Gaggle could develop vario type functionality.
>
> Mike

[Simon Waddington]

Count me in for $20 Kevin. 

[Ringo (Lester) Davis]

Any idea which chip Flytech uses? I'd like to see the spec.
Ringo

[Murmur2k]

Me too $20! And an extra £5 if you can build latitude into Gaggle!!

On Dec 9, 4:42 am, Simon Waddington <simon.wadding...@gmail.com>
wrote:

> Count me in for $20 Kevin.
> On Dec 8, 2010 7:55 AM, "Kevin Hester" <kev...@geeksville.com> wrote:
>
> > Wow - that is awesome. I'll see about upgrading. I almost certainly
> > know the chip they used - the same three wire SPI device that the
> > FlyTec folks use. Totally suited to adding real vario functions.
>
> > In fact: If ten folks were to pledge $20 each, I'd definitely upgrade
> > and add full vario functionality by Feb 15th.
>

> > On Wed, Dec 8, 2010 at 1:32 AM, Mike Mackay <mike.mack...@btinternet.com>

[Sergey Kataev]

Me too $20,

and an artificial horizon from the gyroscope please :D

...shame they haven't added a Pitot tube in the NexusS, maybe the next
model NexusRS will have some sort of airspeed sensor?

Sergey

[Kevin Hester]

Something like this:

http://www.meas-spec.com/product/t_product.aspx?id=7413

Somewhere in a folder I have the datasheet for the exact model (from a
vendor technote that used the flytec as an example application)

[Simon Waddington]

Alas most of the articles I've read so far (well all actually) just say there is API support for a barometer but no actual sensor in the Nexus S.  However its gonna happen eventually - we'll just have to figure out a non-free flight killer app for barometers so evefyone wants one!

[Kostas Hellas]

to all,

I've contacted, about a month ago, Sony-Ericsson and Samsung smart phone marketing division in order to present a complete plan about sales acceleration if digital high precision pressure module added in the new Android models.

It was very difficult but finlay I've contacted the right persons in both companies (hope they are the right); the feedback worth the dozens of emails back and forth.

In a few words both vendors commit to evaluate my (our) proposal and they will be back soon with news.

that's all for now, for any news I'l keep you posted.

-- 
Regards - KostasVonitsa

[Mike Mackay]

Ahhh. So I read it wrong .....


On Dec 10, 7:49 am, Simon Waddington <simon.wadding...@gmail.com>
wrote:

[Ringo (Lester) Davis]

Well I think a barometer in a phone is a terrible idea. Of course I'm
designing a new low-cost vario :-)

Ringo

[Murmur2k]

Could we hookup a small barometer chip over bluetooth to obtain the
pressure readings? Anybody good at electronics? :P

On Dec 10 2010, 7:49 am, Simon Waddington <simon.wadding...@gmail.com>
wrote:

[Richard Ulrich]

Sure, you could do it with an arduino bluetooth for example. But then
you'd have to run bluetooth all the flight...
I just posted some code to the arduino playground on how to interface
Intersema pressure sensors over I2C. Intersema is the sister company of
Flytech.
http://www.arduino.cc/playground/Main/InterfacingWithHardware#Input

Then again you could solder the sensor directly into your smartphone if
you know the location of some i2c connections.
I was going to try it on the OpenMoko, but that stuff is just too small
for me to solder.

[Kostas Hellas]

Hi Richard,

have you seen the Freescale (Motorola) pressure sensors, both digital (SPI/I2C) and analogue ( http://www.datasheetcatalog.org/datasheet/motorola/MPXH6115A.pdf ) have excellent characteristics, are cheap and used from professional altivario systems in aviation.

can be easily integrated (analog ->ADC) with the low cost Atmel or TexasInstrumet controllers.

I'm already working in a project using the above components but unfortunately my job/kids/hg obligations does not let me work fast enough on that... :0(

A bluetooth interface with NMEA output will be great idea for this device - keep in mind that the Smartphone's BT will be mostly receiving data than sending, thus no TX is used so the power consumption is very small therefore no significant impact to phone's working hours.

Worth the try, all it needs is some C code programming for the controller and testing.

-- 
Regards - Kostas Vonitsa

[as tu]

Altimeter over bluetooth should be added - anyone capable in
electronics can do it for ~30-70EUR or buy ready models for
~100-150EUR (like sparkfun wheather station http://www.sparkfun.com/products/9800
+ this http://www.sparkfun.com/products/582
together with this project http://www.navitrack.net/). Android with
built in pressure sensor will be rare for at least few years IMHO..
For the gaggle altimeter over BT support will give new level and
popularity. Bluetooth doesn't realy eats out the battery too much so
it's a good choise.

On 29 Sau, 22:27, Kostas Hellas <kostas.hel...@gmail.com> wrote:
> Hi Richard,
>
> have you seen the Freescale (Motorola) pressure sensors, both digital

> (SPI/I2C) and analogue (http://www.datasheetcatalog.org/datasheet/motorola/MPXH6115A.pdf) have

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