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PICList Thread
'Information on GPS'
1997\01\22@182628 by Alejandro de Larraniaga

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Hi all...!!!

To begin with, this is the first time i write to the mailing list.
I am planning to build a projet based on GPS and as my knowledge on
pic«s is not enough i would like to know if someone has ever worked on
this subjet.
I would also be interested to be informed about the existence of
low-cost GPS OEM boards from which to get positional coordinates in
order to store them in memory or eeprom during a journey (vacations) and
then plot them into a PC.
If someone has worked on it, please let me know, or if she or he has
links, please send them to me

                          Thanks


------------------------------
Alejandro de Larraniaga
EMail: spam_OUTAlexTakeThisOuTspamcentury.com.ar
------------------------------

1997\01\22@184913 by Clyde Smith-Stubbs

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Thus spake Alejandro de Larraniaga (.....alexKILLspamspam@spam@CENTURY.COM.AR):

> I would also be interested to be informed about the existence of
> low-cost GPS OEM boards from which to get positional coordinates in
> order to store them in memory or eeprom during a journey (vacations) and
> then plot them into a PC.

There are several OEM receivers available - all the major GPS manufacturers
have them. The cheapest one (as of early '96 - may have changed now) was the
Rockwell Jupiter. This is a 12 channel receiver with a TTL level serial
interface,
on a board about 2"x1". The price here was around the AUS$250 mark. The other
manufacturer to check would be Trimble. Both these companies have web sites,
which at last check, did not have a huge amount of information, but should
have contact details.

A warning; the interface protocol for the Rockwell receiver is either NMEA
or Rockwell proprietary binary format; the NMEA spec you have to buy (you can
find some details on the Web), and Rockwell will not sell you the proprietary
spec unless you buy their development kit for $1000+. The kit is just docs, a
receiver, and a desktop housing with RS232 converter (and probably an antenna).

For an antenna, you can buy them ready made, or I did see some info on the web
about making your own.

--
Clyde Smith-Stubbs    | HI-TECH Software,       | Voice: +61 7 3354 2411
clydespamKILLspamhtsoft.com      | P.O. Box 103, Alderley, | Fax:   +61 7 3354 2422
http://www.htsoft.com | QLD, 4051, AUSTRALIA.   |
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1997\01\22@201311 by Customized Controller Solutions

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For all those of you interested in GPS, try the following link:

ftp://sundae.triumf.ca/pub/peter/index.html

This is an HTML Page in an FTP site.  It has great links.
It also has seven FAQ's which are GPS related.

Brent
(My listed email is for list mail only.  Any future replies should be
sent to: .....ccsKILLspamspam.....ewol.com)

At 08:24 PM 1/22/97 -0300, you wrote:
{Quote hidden}

1997\01\23@081127 by Nitschke,Gene M

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Check out DeLorme's home page  @ http://www.delorme.com
They offer a dashboard GPS with software for a laptop for only $150.
They keep the cost down by not having a dsplay on the GPS unit.

Gene
----------
From: pic microcontroller discussion list
To: Multiple recipients of list PICLIST
Cc: pic microcontroller discussion list
Subject: Re: Information on GPS
Date: Wednesday, January 22, 1997 5:06PM

For all those of you interested in GPS, try the following link:

ftp://sundae.triumf.ca/pub/peter/index.html

This is an HTML Page in an FTP site.  It has great links.
It also has seven FAQ's which are GPS related.

Brent
(My listed email is for list mail only.  Any future replies should be
sent to: ccsspamspam_OUTewol.com)

At 08:24 PM 1/22/97 -0300, you wrote:
{Quote hidden}

1997\01\23@100514 by Wireless Scientific

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At 9:46 AM +1000 1/23/97, Clyde Smith-Stubbs wrote:
>Thus spake Alejandro de Larraniaga (KILLspamalexKILLspamspamCENTURY.COM.AR):
>
>> I would also be interested to be informed about the existence of
>> low-cost GPS OEM boards from which to get positional coordinates in
>> order to store them in memory or eeprom during a journey (vacations) and
>> then plot them into a PC.
>
>There are several OEM receivers available - all the major GPS manufacturers
>have them. The cheapest one (as of early '96 - may have changed now) was the
>Rockwell Jupiter. This is a 12 channel receiver with a TTL level serial
> interface,
>on a board about 2"x1". The price here was around the AUS$250 mark. The other
>manufacturer to check would be Trimble. Both these companies have web sites,
>which at last check, did not have a huge amount of information, but should
>have contact details.

My company purchased a GARMIN GPS45, a handheld GPS with "computer
interface" a couple years back for $250. I've seen it listed recently for
$150 US. The interface is a non-standard data cable (i.e. no DB style). The
manual offers computer software for boaters, so I'm guessing but there's a
way to talk to the unit. I never investigated if GARMIN would release the
protocol.

craig

1997\01\23@102148 by Brooke

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Alejandro de Larraniaga wrote:
>
> Hi all...!!!
>
....
> I am planning to build a projet based on GPS and as my knowledge on
> pic«s is not enough i would like to know if someone has ever worked on
> this subjet.
> I would also be interested to be informed about the existence of
> low-cost GPS OEM boards from which to get positional coordinates in
> order to store them in memory or eeprom during a journey (vacations) and
> then plot them into a PC......

Alejandro:
If that is all you want to do, then it would be much easier to get one
of
the Garmin handheld units.  In addition to the GPS engine they have a
human interface including a graphics LCD screen and they have NMEA data
output.  Most also have a track recording function which is what you
want
to build.  Price is in the US$ 200 to 300 range.  Some model numbers are
38, 40, 45, II. You might read the sci.geo.satellite-nav newsgroup since
they spend a lot of time on issues like this.  They also have info on
the
map data base programs, the Tripmate ( a GPS receiver and antenna all in
one unit that has NO human interface - it plugs into a loptop which can
use
the Street Atlas (sorry US only now) CD-ROM of maps), and how to get
better
accuracy.

Have Fun,
Brooke

1997\01\23@102947 by Wireless Scientific

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At 9:46 AM +1000 1/23/97, Clyde Smith-Stubbs wrote:
>Thus spake Alejandro de Larraniaga (RemoveMEalexTakeThisOuTspamCENTURY.COM.AR):
>
>> I would also be interested to be informed about the existence of
>> low-cost GPS OEM boards from which to get positional coordinates in
>> order to store them in memory or eeprom during a journey (vacations) and
>> then plot them into a PC.
>
>There are several OEM receivers available - all the major GPS manufacturers
>have them. The cheapest one (as of early '96 - may have changed now) was the
>Rockwell Jupiter. This is a 12 channel receiver with a TTL level serial
> interface,
>on a board about 2"x1". The price here was around the AUS$250 mark. The other
>manufacturer to check would be Trimble. Both these companies have web sites,
>which at last check, did not have a huge amount of information, but should
>have contact details.

My company purchased a GARMIN GPS45, a handheld GPS with "computer
interface" a couple years back for $250. I've seen it listed recently for
$150 US. The interface is a non-standard data cable (i.e. no DB style). The
manual offers computer software for boaters, so I'm guessing but there's a
way to talk to the unit. I never investigated if GARMIN would release the
protocol.

craig



more information.

I poked around some and found this.



http://www.abnormal.com/~thogard/gps/grmnhack.html

Garmin Hacking Project

If you don't want to pay Garmin for their expensive connector for the
GPS38/40/45/90 then check out the first sharehardware project for a low
cost connector from the Open Project.

The GPS45 has a 90.0022kt (104mph) speed limit. It was our intent to find a
way arround this.

It is also our intent to publish full details on the Garmin Protocol

1997\01\23@164838 by Reginald Neale

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>My company purchased a GARMIN GPS45, a handheld GPS with "computer
>interface" a couple years back for $250. I've seen it listed recently for
>$150 US. The interface is a non-standard data cable (i.e. no DB style). The
>manual offers computer software for boaters, so I'm guessing but there's a
>way to talk to the unit. I never investigated if GARMIN would release the
>protocol.
>
>craig

I also have a Garmin 45. The serial protocol is not that exotic. The web
pages mentioned by other PICers recently can lead you to details on the
NMEA format.  There is a shareware package that you can use to exchange
info with your Mac or PC. As Craig mentioned, the biggest hassle is the
ripoff price for the totally non-standard connector needed to interface the
unit.

Reg Neale

1997\01\24@004811 by Ben Wirz

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Alejandro,

       Circuit Celllar INK had an interesting article on GPS last month.
While the issue you mention weren't explicitly covered there was still lots
of good material.

Ben,

At 08:24 PM 1/22/97 -0300, you wrote:
>Hi all...!!!
>
>To begin with, this is the first time i write to the mailing list.
>I am planning to build a projet based on GPS and as my knowledge on
>pic«s is not enough i would like to know if someone has ever worked on
>this subjet.
Ben Wirz                For Microchip PIC Products including the Simm Stick
                       development system and Easy PIC'n Book, as well
Wirz Electronics        as Motor Control, Polaroid Sonar Units, and more
spamBeGonebenspamBeGonespamwirz.com            Hobbyist Robotic & Electronic Supplies, visit:
                       http://www.wirz.com/

1997\01\31@181108 by dla

picon face
I apologize for not having answered the emails you4ve sent me but it is
hard for me to write in english and i always need someone to help
me.Moreover, my provider of internet hasn4t had servers available for
abaut a week.
i thank you for all you4ve sent to the list and to my personal email.I
go on searching for information and i let you know that I4m compilating
it in a page including information on GPS. In case it is helpful for
you.
You can find this page in: (this page is under construction)
www.geocities.com/SiliconValley/Pines/1061
Any new data, please send them to my EMail

           Thank you very much...

Alejandro de Larraniaga
TakeThisOuTalexEraseMEspamspam_OUTcentury.com.ar
LU: LW1DAR
(541) 666-8913

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