Re: SiRF module and bluetooth

[Gary E. Miller]

Yo Dave!

On Fri, 26 Jun 2020 14:07:46 -0700
Dave Riesz <dave@riesz.net> wrote:

> Thanks for the response.  So this command you mentioned:
> 
> > stty -F /dev/rfcomm0 4800  
> 
> will set the tty speed on the Linux side but the bluetooth link will
> still be running at 9600.

But you said your GPS was already at 9600?

> I can only configure it by connecting
> physically to the HC-06 hardware and sending a specific AT command,

AT commands?  To a SiRF III?

> requiring me to physically disassemble and reassemble everything each
> time I start the system.

That would be a PITA.

> If it can't be done (which it's looking like), it can't be done.  I
> hardly spent any money on this stuff and it's not a big loss.

Got any doc?  Otherwise we are mostly guessing.

> If I were to consider a better GPS module, what should I look for?

Depends on what you want.  Do you need the Bluetooth?  Does the
Bluetooth need to be build it?  Does it need to work indoors?  Is
fast TTFF important?  For the last few generations any u-blox beat
the competing SiRF.

I have an "BT A+ GPS" that is bluetooth and MTK-3301.  Works fine for
my testing, but really old now.  Only works on the dashboard os a car.

> The SiRF modules were just so cheap that I couldn't resist them (a
> sack of 10 for about $20).  But I think I've gone about as far as I
> can go with them.

If you can find doc, and send me one, I'll see if I can make them work.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

pgpzzisq4rjjU.pgp
Description: OpenPGP digital signature