Re: [Xcsoar-user] Hardware donation v cheap chinese - ASI options?

[Alan W. <ar...@oz...>]

Ronald,

I don't need an ASI: the pneumatic 53mm or 78 mm round thing that goes into
the instrument panel.  I would like a 'black box' that could provide an
airspeed data stream into a mini USB [and USB 5 volts]

With my stand alone GPS I can derive wind speed and direction by thermalling
or doing 3 turns or so.   [and the GPS produces all the other XCSoar
functions]

In wave flying doing 3 turns may lose the wave.   I believe to derive wind
speed and direction in straight and level flight  I need a digital feed of
airspeed compatible with XC Soar.  [Wind velocity can be derived by
computation using [GPS] ground track and speed, and indicated airspeed
data.]

What I currently take in club gliders is a simple open source Chinese car
GPS and I derive 5 volts via a car charger.  [AS SEEN IN THE ATTACHED
PICTURE].   I either RAM mount connect it to the instrument panel, or Velcro
the GPS to my leg.  [We don't like suction caps as we believe they will
distort the Perspex canopy over time.]

What I am looking for is a 'black box' that has inputs of pitot pressure and
10 to 24 volts DC and outputs an XCSoar bitstream and 5 volts to a mini USB
plug.  An additional input consideration could be FLARM data.

Pitot pressure data may be available from a B50 or Cambridge SNAV LNAV but
compatible plugs, wiring and black box may still be required.

Cost.  Hmmmm.  Chinese GPS cost $80 ~ $100 AUST.  Oudie say $600, or
hardwired proprietary LXNAV  $ ,000 in each club glider. And this device
would only give me wind speed and direction in level flight [that I can
derive in 3 turns]... So I guess $150 would be a target price for the black
box?

I would appreciate advice of any known systems.

Alan Wilson
Canberra Australia




-----Original Message-----
From: Ronald Niederhagen [mailto:ron...@fr...] 
Sent: Tuesday, 26 June, 2012 3:59 AM
To: Alan Wilson
Subject: Re: [Xcsoar-user] Hardware donation v cheap chinese - ASI options?

Hi Alan,

you want an Airspeed Indicator. Am I getting this right?
If so, what would you consider "cheap"?

Ronald


Am 25.06.2012 13:28, schrieb Alan Wilson:
> I appreciate the note that proprietary equipment manufacturers are 
> providing hardware to assist in XCSoar development.
>
> I really love XCSoar and use it on every available opportunity.  I fly 
> club aircraft so don't have a system as capable as XCSoar in many aircraft
I fly.
> So I use a $80 Chinese car GPS stand alone for navigation, final 
> glide, confirmation of sector etc. Final glides are fantastic and 
> reliable.  I rely on the winter/B50 vario in the club aircraft and fly
VFR.
>
> I consider wind direction and speed as essential and XCSoar gives me 
> that reliably in thermal Xcountry mode.
>
> Wind direction and speed is absolutely essential in the wave flying I 
> do in the Cooma region and I don't have a system that calculates other 
> than doing at least 3 turns.
>
> I would be interested in options whereby I could easily and reliably 
> get an ASI input into my cheap Chinese GPS through the standard small 
> USB interface.
>
> But keep up the good work on you open source software.    Please.
>
> Alan Wilson
> Canberra Australia
>
> http://www.onlinecontest.org/olc-2.0/gliding/flightbook.html?sp=2012&s
> t=olcp
> &rt=olc&pi=22975
>
>
> PS Also, how do you force change from 'circling' screen other defined 
> screens 'cruise', Aux. And stop the screen from locking into 'final
glide'.
>
> -----Original Message-----
> From: Max Kellermann [mailto:ma...@du...]
> Sent: Monday, 25 June, 2012 6:30 PM
> To: xcs...@li...
> Subject: [Xcsoar-user] Hardware donation from LXNAV
>
> Hi,
>
> last week, I have received a packet from LXNAV with a V7 vario and a 
> Nano logger, for free.  That allows us to improve support for these
products.
> XCSoar 6.3.7 already has a few V7 specific fixes, and XCSoar 6.4 
> (first alpha this week) will feature extended support for both V7 and
Nano.
>
> Quite a few vendors have already donated hardware to XCSoar
> developers: Triadis, EW, IMI, K6 Team, LX Navigation, SoarTronic.
> Sometimes, difficult interoperability problems can be solved quickly 
> when a developer has the device on his desk.
>
> Every pilot can help by making hardware manufacturers aware that you 
> care for XCSoar interoperability.  If they feel XCSoar is important 
> for their customers and their business, it's likely they will publish 
> documentation and donate test hardware, and we can solve your problems
easily.
>
> Max
>
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