OEM GPS Modules. - Page 2

IntellaWorks · 02-06-2005, 03:02 PM

Ok, check this out. Using the internal serial interface on my MII I wired the GPS unit Data out to serial Datain and GPS unti Data in to Serial Data Out... As for the power, right next to the internal COM2 there is a 6 pin IRDA pin configuration, since Serial ports do not have power I could have used a 3.3v line from the ATX power supply but that would have required me to tap into a line...

So what I did was use the 3.3v & ground from this IRDA connector, because I'll never be using that it worked out great.. plus even better was that it is less than an inch away from the internal com port...

Bravellir · 02-07-2005, 05:50 AM

And what about the antenna? Does it came with the sensor or we have to buy that?
Anybody has a pic of it?

mpattonm · 02-07-2005, 06:00 AM

Quote: Originally Posted by IntellaWorks

Ok, check this out. Using the internal serial interface on my MII I wired the GPS unit Data out to serial Datain and GPS unti Data in to Serial Data Out... As for the power, right next to the internal COM2 there is a 6 pin IRDA pin configuration, since Serial ports do not have power I could have used a 3.3v line from the ATX power supply but that would have required me to tap into a line...

So what I did was use the 3.3v & ground from this IRDA connector, because I'll never be using that it worked out great.. plus even better was that it is less than an inch away from the internal com port...

Could you take a picture of your wiring, please?

jcdillin · 02-07-2005, 07:32 AM

you have to purchase the antenna seperately, and you have to make sure that you are buying the unit that has the plug with pins instead of the ribbon cable. for ease of soldering wires.

jcdillin · 02-07-2005, 08:26 AM

Well mine should be here this week, I can't wait.

tropas · 02-07-2005, 09:27 AM

While WAAS is US based, there is a system for us Europeans- DGPS differential GPS.

There are two ways of using DGPS..either software correction or straight from a device. Software correction takes a correction signal from a DGPS device, and combines it with a NMEA string to calculate the location. Hardware based correction can be achieved by Garmin.

Garmin do the
GPS 35 which is DGPS ready, i.e. plug a DGPS receiver box into the end of the GPS 35.
Such a DGPS receiver: http://www.outdoorgear.co.uk/eshop.a...001&affid=4171

http://www.effective-solutions.co.uk/dgps1.html - good info on DGPS

For GPS newbies, SA (Selective availibility has been turned off for a few years now) so DGPS is a bit of over kill for car satnav

sfay93 · 02-07-2005, 09:54 AM

Here is the route I plan to take: http://www.i-hacked.com/Car-Home/Car...Stars-GPS.html

IntellaWorks · 02-07-2005, 10:23 AM

Antenna
Wirring Harness from GPS MOD to system board

[Pictures of my actual setup comming soon]

jcdillin · 02-07-2005, 01:21 PM

Yeah after I get my unit i'm going to post some pictures as well.

Creoden · 02-07-2005, 03:52 PM

I now hate you all, I was going to just go the gps usb mouse route like a lot of people do, but now I think I will have to get myself one of these and see what upgrades I can do to it...

jcdillin · 02-07-2005, 04:38 PM

Yeah I have always wanted to go the OEM route, now I will have 2 sat antennas on my car. now I just need to add sirius and directv

Creoden · 02-08-2005, 11:40 AM

well Looks like I will be placing an order for one of these things. I've already started work on a daughterboard for it I'm making so I can interface this thing with my aprs radio and compute via serial & USB

IntellaWorks · 02-08-2005, 01:10 PM

Cudos to everyone willing to go this route. I really think its a great mod and really small and so easy to use. I'll have pictures comming up soon, I just need to get my roomates cam and put em' on the web I'll try and post em' tonight.

Again if you guys are doing this and need to test to see if you actually got a signal, you can do 2 things:

1) use windows hyperterminal
2) use the delou gps tool I gave a link to in the begenning of this thread.

FOr those of you who nLited thier XP installs, you will probably have to download the delou tool becuse you most likely took out windows hyperterminal.

THe GPS tool is better than hyperterminal, because it actually reads the NMEA 1.83 data and puts it into a somewhat readable form, (it shows you how many sats its tracking, location, MPH (if any) and altitude from sea level)

Hyperterminal would just spew out whatever it sees comming from the COM port also it wont auto detect your gps like the diag tool will.

jcdillin · 02-08-2005, 01:31 PM

yeah the gps tool is awesome, I have been using it for another project. I think we should start a new thread for OEM gps module installs.

IntellaWorks · 02-08-2005, 09:15 PM

I'd definatly love to see a OEM gps install thread, it's importance can have a great value to our comminity.

For everyone that doesn't know these GPS mods are 1/5 the size of a standard USB/Serial GPS mouse.... Yet they are just as if not more capable than the USB gps mouse... ALSO the greatest values for you nlite poeple is that you do NOT need a driver !!!!!! just point your mapping software to whatever com port the OEM mod is on and it will get the NMEA data...