[Diy_efi] Fast updating (20Hz) GPS receivers for track

[Avery Nisbet]

Yup a max232 chip and antenna with an SMA connector and it should be
good to go.   LM7805 like 3.3v regulator would be needed too but those
are cheap.


It has configurable baud and sample speed so it should hook right up
to the motec after using a Max232 chip. It also has two serial ports I
assume they can both be configured as outputs so you could hook it up
to to DAQ's if you wanted to.


-Avery

On Mon, Jul 18, 2011 at 11:17 AM,  <steve at donegan.org> wrote:
> That item looks good - mate it with a USB/Serial interface and it makes the acquisition side of a system. Or simply a level shifter serial interface as it appears a 3.3V interface is on that module.
> ____________
> Steven Donegan
> SSCC/NORC Car #86
> www.sscc.us
>
>
>
> --- On Mon, 7/18/11, Avery Nisbet <anisbet at gmail.com> wrote:
>
>> From: Avery Nisbet <anisbet at gmail.com>
>> Subject: Re: [Diy_efi] Fast updating (20Hz) GPS receivers for track
>> To: "Jay Rabe" <jayrabe at gmail.com>
>> Cc: diy_efi at diy-efi.org
>> Date: Monday, July 18, 2011, 6:07 PM
>> I highly doubt its doing any
>> interpolation.? It would be more work
>> than actually doing the real thing.
>> If anything they may not truly giving 10 NMEA sentences a
>> second.
>> Maybe 9.3 or 9.75 a second.
>>
>>
>> http://www.sparkfun.com/products/9133
>>
>> Sparkfun also did a good right up on what to look for and
>> what chips
>> they carry and how it all works.
>>
>> Look into what the chip in the module can do.? Find
>> the data sheet
>> most are reconfigureable with some resistors or by sending
>> them some
>> commands.
>>
>>
>> -Avery
>>
>> 2011/7/16 Jay Rabe <jayrabe at gmail.com>:
>> > Im not sure if this is exactly what you are looking
>> for but it has some info
>> > on 5hz vs 10hz gps receivers.
>> > http://trackmaster.trackaroo.com/forums/-/message_boards/message/43468
>> > theres one post that says a bunch of the 10hz
>> receivers are really 5hz and
>> > interpolate to make them 10hz, no idea the validity of
>> that claim but might
>> > want to check it out quick before you go nuts hunting
>> a 20hz down. (maybe
>> > more interpolation bs or something to look out for.)
>> > ? The GPS receiver is bluetooth that they're talking
>> about,
>> > http://www.qstarz.com/GPS_products.htm
>> you might find some more info there.
>> >
>> > On Sat, Jul 16, 2011 at 1:20 PM, Brian Koontz <brian at pongonova.net>
>> wrote:
>> >>
>> >> On Sat, Jul 16, 2011 at 11:08:03AM -0700, steve at donegan.org
>> wrote:
>> >> > Been googling for GPS modules this morning
>> and the fastest I've
>> >> > found so far is a 5Hz refresh. If anyone else
>> finds something better
>> >> > (module, not system) let me know.
>> >>
>> >> 10Hz, $40:
>> >>
>> >>
>> >> http://www.thaieasyelec.net/index.php/GPS/65-Channel-SUP500F-10Hz-GPS-Receiver-with-Smart-Antenna/p_145.html
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