G2 HUD support?

William Perry wmperry at kadath.us
Thu Apr 25 11:07:40 PDT 2019


Verified that ‘btName' at this point contains only the string ‘HUD’.  Because surely nobody would ever create another HUD dive computer that works over bluetooth.

-bill

> On Apr 25, 2019, at 10:56 AM, William Perry <wmperry at kadath.us> wrote:
> 
> With Jef’s changes to libdivecomputer I was able to download over USB just fine.  The bluetooth seems a little iffy - I was able to download after forcing it into LE mode.  It looks like the bluetooth device name starts with ‘HUD’:
> 
> diff --git a/core/btdiscovery.cpp b/core/btdiscovery.cpp
> index 7e75994da..c057abd8b 100644
> --- a/core/btdiscovery.cpp
> +++ b/core/btdiscovery.cpp
> @@ -56,9 +56,10 @@ static dc_descriptor_t *getDeviceType(QString btName)
> 		product = "EON Core";
> 	}
> 
> -	if (btName.startsWith("G2")  || btName.startsWith("Aladin")) {
> +	if (btName.startsWith("G2")  || btName.startsWith("Aladin") || btName.startsWith("HUD")) {
> 		vendor = "Scubapro";
> 		if (btName.startsWith("G2")) product = "G2";
> +		if (btName.startsWith("HUD")) product = "G2 HUD";
> 		if (btName.startsWith("Aladin")) product = "Aladin Sport Matrix";
> 	}
> 
> 
> 
> -bill
> 
>> On Apr 25, 2019, at 8:49 AM, William Perry <wmperry at kadath.us> wrote:
>> 
>> I have a build of subsurface with your changes in it and will be spending the day at the quarry.  Will see if I can snag the HUD while I am down there.
>> 
>> -Bill
>> 
>>> On Apr 24, 2019, at 10:58 AM, Jef Driesen <jef at libdivecomputer.org> wrote:
>>> 
>>> On 2019-04-23 22:32, Linus Torvalds wrote:
>>> 
>>>> Have you found where the GPS coordinates might be? The G2 HUD
>>>> allegedly supports GPS.
>>>> (Btw, right now we export GPS information with the extra-string
>>>> interface, but it would actually be much better to have an actual GPS
>>>> event. No, they won't happen under water, but in addition to the
>>>> beginning/end they can happen in the middle of the dive when
>>>> surfacing, so an event with a timestamp etc would be really useful).
>>> 
>>> No, I didn't look for the GPS info. Since the Uwatec data format uses a type/value encoding for the sample data and I didn't notice a new type, the only place where GPS info can be stored is in the MISC sample. I have seen some unknown subtypes before. A quick check shows there are indeed some unknown subtypes present in the G2 HUD data:
>>> 
>>> Unknown misc sample with type 24 and length 3.
>>> Unknown misc sample with type 16 and length 91.
>>> Unknown misc sample with type 17 and length 67.
>>> 
>>>>> I have the necessary fixes ready to push.
>>>> Apparently they aren't out yet, but I'll merge them when they are and
>>>> we can get testing going.
>>> 
>>> I have pushed the changes now.
>>> 
>>> Jef
>> 
> 



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