External barometric pressure sensor

[konsvik]

Hi Peter, hi all!
I'm from Russia, so sorry for my english.
Excellent program, I really liked!
Not all phones and tablets the more there is a barometric pressure sensor. I propose to consider the possibility of connecting an external sensor via Bluetooth. Development of concept and prototype taking over.
Peter, how do you like it?

[kitercuda]

Hi,
I am now developing connecting a lot of external sensors (static pressure, pitot pressure, fuel flow, EGT etc.
It will be available next year.

Regards
Petr

[konsvik]

Hi, Petr.
If you need help for developing and building electronic part, please tell me.

[kitercuda]

Thanks maybe later
I have some equipment on my table - I am connecting it via Bluetooth. I will make 5th screen - engine gauges.

[Laotse]

Dear all,

will you support bluetooth GPS/Varios or bluetooth barometer devices using the LX command strings as integrated in XCSoar? (Sensfly, LAVA, ...) ?

e.g. LAVA = light airsport variometer ... http://www.millenair.nl/shop/paragliding-variometer
Description / manual : www.millenair.nl/shop/manuals/BTBaroVarioV2.pdf

There they write ... [...[ "Works on any navigation software, NMEA sentences $LK8EX1 and $LXWP0
(LK8000, SeeYou Mobile, XCsoar, etc...)." [...]

Integration of these "$LX..." sentences in FiF will be perfect - then we could use such barometers. The cheapest solution I have seen (blueflyvario) costs around 30 USD)
http://www.blueflyvario.com/

Best,
Laotse

[kitercuda]

Hi, I did not find $LK8EX1 and $LXWP0 at NMEA protocol. Can post it?

[Laotse]

Hi,
You are right, the two sentences are not NMEA. I guess they are a proprietary invention of the LX Navigation guys. It seems to be a "kind of standard" in the glider scene. I haven't found the description yet, as I am on the road/in the air and not home. The XCSoar software got it integrated, e.g. maybe their forum could help.
In the worst case we have to contact LXNav.

In my opionion integrating these two sentences into FiF communication with external devices will add a lot to your already great software, which I am using now for more than 150h in the air. As far as I know quite a bunch of external baro/gps devices use the LXWPx extension to the NMEA protocol.

I will keep on looking for it.

Best,
Volker

P.S.: In my flying club we now got one pilot who is solely navigating with FiF! He is happy with it as well.

[Laotse]

Hi,

have a look here:
http://xcsoar.1045713.n5.nabble.com/Lim ... 47477.html

$LXWP0,Y,222.3,1665.5,1.71,,,,,,239,174,10.1
0 loger_stored (Y/N)
1 IAS (kph)
2 baroaltitude (m)
3 vario (m/s)
4-8 unknown
9 heading of plane
10 windcourse (deg)
11 windspeed (kph)


Or another example...

$LXWP0,Y,0.0,95.7,0.00,,,,,,140,247,22.5*40
logger_stored Y
IAS=0.0km/h (glider was on the ground, ready for take-off. We might check speed unit just to make sure it is Km/h and not m/s)
barometric altitude=95.7~96m
Vario=0.00 m/s (on the ground, no moving)
5 empty fields
Glider heading=140 deg
Wind direction = 247 deg (- to 247deg)
Wind Speed = 22.5km/h
Data check sum=*40

It looks like you only need one of the two sentences.... either/or LXWPx or the LK...
...

Best,
Volker

[kitercuda]

Thanks, I will implement it.

[kitercuda]

I was searchin the definition of the LX sentences. I did not find it.
Can anybody help?