> On Jan 22, 2017, at 2:32 AM, Anton Lundin <[email protected]> wrote: >> 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? )
Can you write this up with a bit more context and maybe the pertinent code sample and send it to me? I'll be happy to poke them about this. >> 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. That would indeed be easier for the user. We could trigger this through the selection of dive computer vendor. >> 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. I keep forgetting about that - maybe in part because we get a request for direct download support maybe once a quarter. /D _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
