OzTek 2017

[Anton Lundin]

On 21 January, 2017 - Dirk Hohndel wrote:

> On Sun, Jan 22, 2017 at 12:28:52PM +1100, Rick Walsh wrote:
> > Hi, I'll be going to OzTek (dive conference and exhibition) in Sydney
> > March.  Firstly, is there anyone else involved in Subsurface who's going
> > and would like to meet up.  Secondly, there'll be representatives from
> > various manufacturers, agencies and DAN with stalls.  Is there anything
> > anyone wants to find out more about?  Shearwater? Divesoft? Mares?  The
> > conference presentations look interesting too.
> 
> Cool. I don't think I'll happen to be Sydney in March (sadly).

10 years since I was living in Sydney, so it would be fun to visit but a
bit to far =)

I'll just recommend walking around saying Hi to people, and try to grow
some contacts. It might make it easier to get support / documentation /
loot next time it actually matters =)
 
> Shearwater we have great relationships with (ok, they still owe me a
> response on more details of the new BTLE communication, but hey, they
> already sent me a Perdix AI). We used to have a contact at Mares, but he
> left. Do they still produce new dive computers?

I would love to get some feedback from them about their calibration
values of their O2 sensors. I've reverse-engineered a patch which
produces what looks to be the right values, but it would be great if
someone with internal knowledge about how its thought could comment on my
analysis.

( The short and curly: Shearwater stores their voted/computed/averaged
ppO2, and the mV from the actual sensors in each sample. They also store
a "calibration value" in the dive header of unknown unit. If I take that
* about 1000 (1024?) the average of the sensors will produce the same
ppO2 as they have stored in my sample data. Is that bogus math or is it
the right<tm> way? )

> No idea about Divesoft.

We already support the Divesoft Freedom-series computers. We talked to
them over email, and they sent us a header-file with the actual structs
they write to their log-files, so that way I could correct all the
mistakes I/we did when reverse-engineering the format.
( Things like Temperature in 1/10 C, 10 bit signed wasn't that easy... )

Divesoft makes a really good helium analyser to. Way better than Analox
variant.

A itch to scratch is to make all those file-based importers behave more
like a regular dc-download, IE point them to a directory, and they will
import all the dives that you're missing. This goes for the Divesoft,
Seabear and probably a couple more.


> I know that people keep hoping for support for Liquivision support. Not
> sure if there's any hope to move forward on that...

Direct download would be cool, but we atleast got a direct importer
nowadays in core/liquivision.c. A quick glance says it looks reverse
enginnered, but hey, we got one. 


//Anton


-- 
Anton Lundin	+46702-161604