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Welcome to NavSpark Community, a friendly social site for NavSpark GPS/GNSS enthusiasts. If you have some related GPS/GNSS questions or interesting applications to share, this is the place to come !

NavSpark started as an Indiegogo campaign: http://goo.gl/F4WSfn

To download NavSpark Arduino IDE tools & documents, click Store/Resources, then RESOURCES

Blog

I2C Improvement

Along with latest Windows and Linux Board Manager support update, the NavSpark I2C library has been improved to allow easier adoption of other vendor's example code when using their break board.

Using Adafruit's 10DOF break board and BNO055 break board, below list modification guidelines needed to make them work with NavSpark:

1. Change all #include <Wire.h> to #include <TwoWire.h>     click below image to zoom…

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Comments: 0

Window & Linux Board Manager Support

Board Manager support for Windows and Linux version Arduino is now available. Add following line to File --> Preferences --> Additional Board Manager URLs:

http://navspark.mybigcommerce.com/content/package_navspark_index.json

It still need compiler, sparc-elf-3.4.4-mingw.zip, be manually installed under "c:\opt", or there will be compile error. We haven't figured out how to avoid manual install of this yet.

Existing 1.5.6 users already have this "c:\opt" contents…

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Comments: 7

L1 GPS RTK Availability

Some customers asked about availability of getting fixed RTK solution with NS-RAW. Although the answer may vary depending on location, we did a 12 hour experiment using host-based RTK receiver we are developing, it sheds some light on possible fixed solution availability using other RTK software.

For GPS-only, we see average of 73% fixed solution availability over 12 hour GPS satellite orbit period. The setup uses HX-CSX601A…

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Comments: 0

Forum

Possible to modify NS-RAW for 5V antenna bias?

On the prelim SE4150 datasheet, I see pin 24 is the ANT_FEED pin for antenna power.  I was considering modifying the board to apply 5VDC to this pin for antennas that require a minimum of 4.5V.  The main problem I see is that the datasheet also says that no pin should have more than 3.6V -I don't want to fry the chip...  Any suggestions, or should I try to find antennas with lower voltage requirements?  Thanks!

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1 Reply · Reply by Jason Lin on Sunday

Can the NS-RAW with it's 100MHz 32bit LEON3 Sparc-V8 run the RTKLIB RTKRCV positioning

In regards to run RTK in realtime at 5 to 10HZ.  Was wondering if the NS-RAW has enough CPU processor performance to process the RTKRCV (real‐time positioning) subset of the RTKLIB. The specs of the SkyTraQ Venus822 seem good (Venus822 LEON3 Sparc-V8 MCU @ 100MHz with IEEE-754 Compliant FPU, 1024KB Flash Memory, 212KB RAM). Instead of rover client porcessing the RTK positioning, a simpler solution could be: the client rover would supply the base-station corrections to the NS-RAW module, the…

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3 Replies · Reply by Oliver Huang Jul 22

Adapter board gets hot

Hello all, Hardware isn't my strong side. Please excuse me if this is an ignorant question. I would like to use the navspark as a logger. I soldered the connector wires to the adapter board, plugged in the 3.7V Lipo battery shown below and noticed that the adapter board got hot very fast. Light of the navspark board (not in the photo) did not switch on.  Did i solder the connector the wrong way round? It does seem to match the photos i found on this website.

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6 Replies · Reply by Jason Lin Jul 18

1PPS Output signal as an accurate time Sync.

Hi, I have recently purchased 2 x  NS-T : PRECISION TIMING MODE GPS RECEIVER to evaluate the 1PPS output signal as an accurate time sync. option between 2 systems. When I power up both modules and compare the 1PPS o/p signal on a scope, they appear to be varying quite a bit, from 0nSec to over 600nSec. Is there anything I can do to improve the accuracy, some setup change ? I am using the GPS/GLONASS ACTIVE ANTENNA.

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1 Reply · Reply by Jason Lin Jun 30

Activity

Jason Lin replied to Nathan M's discussion Possible to modify NS-RAW for 5V antenna bias?
"Proper way to do it is adding DC block before NS-RAW RF input, adding Bias Tee between DC Block and your antenna to provide needed DC power:
http://www.minicircuits.com/pdfs/BLK-18+.pdf
http://www.minicircuits.com/pdfs/ZX85-12G+.pdf
If you are able…"
Sunday
Nathan M posted a discussion
On the prelim SE4150 datasheet, I see pin 24 is the ANT_FEED pin for antenna power.  I was considering modifying the board to apply 5VDC to this pin for antennas that require a minimum of 4.5V.  The main problem I see is that the datasheet also says…
Friday
Jason Lin posted a blog post
bit.ly/1OG0uDq
Jul 26
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Hi James, Thank you for pointing this out. We fixed and uploaded with 32bit version. Wishing you a great weekend ! "
Jul 24
Denes Borsos is now a member of NavSpark Community
Jul 24
james apple muncy commented on Jason Lin's blog post Window & Linux Board Manager Support
"Greetings Jason,
Here is what I have found:
~/.arduino15/packages/navspark/tools/navsparktool/1.0.0/sparc-elf-3.4.4/bin/sparc-elf-mkprom
that comes in from ~/.arduino15/staging/packages/navsparktool-1.0.0-linux32.tar.bz2
is a 64bit executable that…"
Jul 24
Abhishek Shrivastav is now a member of NavSpark Community
Jul 23
patrick kirol and Al joined NavSpark Community
Jul 23
james apple muncy commented on Jason Lin's blog post Window & Linux Board Manager Support
"From compiler out put off the previous screan shot:

"sparc-elf-gcc: /home/apple/.arduino15/packages/navspark/tools/navsparktool/1.0.0/sparc-elf-3.4.4/tmp/build7120195169024412255.tmp/sketch_jul22a.cpp.o: No such file or directory"
it aprears that s…"
Jul 22
Oliver Huang replied to Al's discussion Can the NS-RAW with it's 100MHz 32bit LEON3 Sparc-V8 run the RTKLIB RTKRCV positioning
"We'll later think of a connector type solution for ease of use. It still output NMEA in 9600 but with more decimal digits; so should easily interface with Bluetooth."
Jul 22
james apple muncy commented on Jason Lin's blog post Window & Linux Board Manager Support
"Greetings Jason,
This is embarassing but I reported in error that I run Ubuntu 10.04LTS. I am using Ubuntu 14.04LTS
So I observe that contrary to what your announcment say in regards to:
"It still need compiler, sparc-elf-3.4.4-mingw.zip, be manuall…"
Jul 22
Al replied to Al's discussion Can the NS-RAW with it's 100MHz 32bit LEON3 Sparc-V8 run the RTKLIB RTKRCV positioning
"Thanks for the reply.
Will this RTK receiver module be mounted on a PCB ?
Can it be easily connected to a bluetooth interface ?"
Jul 22
Oliver Huang replied to Al's discussion Can the NS-RAW with it's 100MHz 32bit LEON3 Sparc-V8 run the RTKLIB RTKRCV positioning
"Hi Al, We expect to have a 25mm x 25mm RTK receiver module in September or October, like the one shown here: http://diydrones.com/profiles/blogs/single-frequency-rtk-receiver-f...;"
Jul 22
Al posted a discussion
In regards to run RTK in realtime at 5 to 10HZ. Was wondering if the NS-RAW has enough CPU processor performance to process the RTKRCV (real‐time positioning) subset of the RTKLIB. The specs of the SkyTraQ Venus822 seem good (Venus822 LEON3 Sparc-V8…
Jul 22
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Hi James, We have  Board Manager working on Ubuntu 14.04LTS. Might it be possible for you to update to newer version?"
Jul 20
Jason Lin commented on Jason Lin's blog post Window & Linux Board Manager Support
"Let me have our engineer look into this and get back to you next Monday. "
Jul 18
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