Solved Quest for GPS

Phishfry

Beastie's Twin

Reaction score: 2,872
Messages: 5,871

I am wondering if anyone here has used Ublox LEA-6N module before?
It has the attributes of a timekeeping GPS module with PPS.
This version uses a USB-MiniPCIe interface.
Paid $40 for a Ublox LEA-6N:

So my quest continues for a GPS-only USB-MiniPCIe module.
Hopefully this works. I don't like using a cellular modem for just GPS.
Seems a waste.

Supposedly Ublox uses UBX. gpsd has a new software tool for it.
Ublox has custom software for their modules that works on Windows and Wine.
Need to get some custom binary code from it to use with gpsd.
Sounds like a real pain too. Ublox is an established name though.
 
Last edited:
OP
Phishfry

Phishfry

Beastie's Twin

Reaction score: 2,872
Messages: 5,871

Well right off the bat I see this module is different.
Code:
ugen1.3: <u-blox AG - www.u-blox.com u-blox 6  -  GNSS Receiver> at usbus1
umodem0 on uhub2
umodem0: <u-blox AG - www.u-blox.com u-blox 6  -  GNSS Receiver, class 2/0, rev 1.10/1.00, addr 3> on usbus1
umodem0: data interface 1, has CM over data, has no break
 
OP
Phishfry

Phishfry

Beastie's Twin

Reaction score: 2,872
Messages: 5,871

Well this module works like I had hoped. Even without gpsd I have a raw stream.
Code:
cu -l /dev/cuaU0
Connected
$GPTXT,01,01,02,u-blox ag - www.u-blox.com*50
$GPTXT,01,01,02,HW  UBX-G60xx   00040007 *72
$GPTXT,01,01,02,EXT CORE 1.00 (59843) Jun 27 2012 18:25:00*49
$GPTXT,01,01,02,ROM BASE 7.03 (45969) Mar 17 2011 16:18:34*57
$GPTXT,01,01,02,MOD LEA-6N-0*2B
$GPTXT,01,01,02,PROTVER 14.00*1E
$GPTXT,01,01,02,ANTSUPERV=AC SD PDoS SR*20
$GPTXT,01,01,02,ANTSTATUS=OK*3B
 
OP
Phishfry

Phishfry

Beastie's Twin

Reaction score: 2,872
Messages: 5,871

Here is gpsd's graphical application xgps over ssh-forwarding from my APU2.
screenshot-gpsd.png
 

Sergei_Shablovsky

Member

Reaction score: 11
Messages: 89

I am wondering if anyone here has used Ublox LEA-6N module before?
It has the attributes of a timekeeping GPS module with PPS.
This version uses a USB-MiniPCIe interface.
Paid $40 for a Ublox LEA-6N:

So my quest continues for a GPS-only USB-MiniPCIe module.
Hopefully this works. I don't like using a cellular modem for just GPS.
Seems a waste.

Supposedly Ublox uses UBX. gpsd has a new software tool for it.
Ublox has custom software for their modules that works on Windows and Wine.
Need to get some custom binary code from it to use with gpsd.
Sounds like a real pain too. Ublox is an established name though.
A little question: why You use USB? As I know USB connection of GPS-receiver make as a result unpredictable time for PPS signal received (I mean small fluctuations)...
Am I wrong?

Recently we bought for one of projects new Garmin GPS 16x-HVS (more robust and stable working, and same or better receiver sensitivity rather 19x-HVS, especially for non-moving objects like rack server).

P.S. May be this thread would be interesting for You ;)
 
OP
Phishfry

Phishfry

Beastie's Twin

Reaction score: 2,872
Messages: 5,871

A little question: why You use USB? As I know USB connection of GPS-receiver make as a result unpredictable time for PPS signal received (I mean small fluctuations)...
Am I wrong?
I don't doubt that one bit.

For me I wanted a GPS module on PicoITX board. So I needed MiniPCIe slot with USB signaling.
That is the common wiring scheme for Mini-PCIe GPS modules.
Just like cellular modems use.

My Jetway small boards have one full-size MiniPCIe slot(USB signaling) and one half-sized MiniPCIe
(usually wired for PCIe/Wireless).

My project is for a remote rig. I am using GPSd and logging.
So location services without a cellular modem.
I am working on my RC boat project and remote telemetry via wifi.

PPS is not needed.
I am glad you brought this subject up. I bought some new Ublox modules from the Advantech store.
Leadtime was 20 weeks. They met the delivery date. 2 modules for ~27$ each with high shipping of $25.
Still nice to have an new option that is not ebay. I am getting tired of that place.
 
Top