Home

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

Forum

No common Satellite

Hi there I play around with two ns raw to get a kinematic solution. befor sunday I was able to get a float solution and sometimes a fix one. Then i startet to play with the serial baud rate and the postiion update rate in GNESS Viewer (save to sram +  Flash). Now I have a strange behavour and I cannot figure out why this happen. in RTKLib i got the error "no common satellite" all the time have anyone an idea what this mean? I resetet the two ns raws to factory defaults and also have tried the…

Read more…
1 Reply · Reply by Thomas yesterday

Real-time RTK processing

Hello Everyone, I'm fairly new to the world of RTK; planning a small rover using a pair of nav-spark raw boards and RTKlib. I've done a bit of research trying to answer this question, but haven't come up with anything concrete. I'm hoping someone can point me in the right direction. As I said, I'm building a small rover that will use a raspberry pi B+, two nav-spark raw boards, and RF from the base station. Has anyone had any luck getting measurement data from RTKlib into python (real-time) for…

Read more…
0 Replies

Support Arduino IDE (custom integration of Wiring libraries

Hai: What do you mean with : "custom integration of Wiring libraries" When I look into the libraries of the IDE I see several libs available. But do for example the robot work etc ? it is confusing what is working and what is not working and need conversion It woud be nice if this site contains a step by step instruction how to convert a excisting library to the NAVSAR platform! 

Read more…
2 Replies · Reply by John Nivard Feb 17

Problem with NS-RAW binary raw GPS data output

Hello! I am using a NS-Raw receiver to extract GPS pseudo range and carrier phase measurements. The problem I am having is that I have large position errors when I recompute the GPS position with the extracted NS-Raw binary data in the form of a RINEX file. To compute the GPS position, I used my own codes and RTKPOST (one of the RTKLib for post-processing). The strange part is that the my own codes and the RTKPOST output accurate GPS position with the RINEX files from other GPS receivers or GPS…

Read more…
6 Replies · Reply by Mark Payne Feb 17

Blog

Why Is Speed Noisy at Higher Update Rate ?

SkyTraq's GPS/GNSS has fastest update rate in the low-cost consumer/industrial segment.

GPS modules has 50Hz maximum update rate.

NavSpark has 10Hz maximum update rate, reserving enough throughput for application development. Firmware at bottom of NavSpark product page on the web-store also supports 50Hz maximum update rate for NavSpark, 20Hz for NavSpark-BD and NavSpark-GL.

Often users want to use highest update rate regardless of application, and sometimes this gives…

Read more…
Comments: 0

Activity

Christian Stäuble is now a member of NavSpark Community
yesterday
Thomas replied to Thomas's discussion No common Satellite
"ok guys,
I found a solution to my issue, it had to do with the update rate on the ns-raw adapter back to 1 hz and it works again.
What i have to cahnge in rtklib to support a higher update rate?
I have most of the time three errors in rtklib and did…"
yesterday
Kay aye is now a member of NavSpark Community
yesterday
Thomas posted a discussion
Hi thereI play around with two ns raw to get a kinematic solution.befor sunday I was able to get a float solution and sometimes a fix one.Then i startet to play with the serial baud rate and the postiion update rate in GNESS Viewer (save to sram + …
yesterday
Kevin Terry posted a discussion
Hello Everyone, I'm fairly new to the world of RTK; planning a small rover using a pair of nav-spark raw boards and RTKlib. I've done a bit of research trying to answer this question, but haven't come up with anything concrete. I'm hoping someone ca…
yesterday
Kevin Terry is now a member of NavSpark Community
Monday
Rosie robins is now a member of NavSpark Community
Feb 24
cb is now a member of NavSpark Community
Feb 22
Mark Payne replied to EKim's discussion Problem with NS-RAW binary raw GPS data output
"Here you go:
     3.02           OBSERVATION DATA    M: Mixed            RINEX VERSION / TYPE convert_skytraq_raw Skytraq Corp.       20150216 040900 UTC PGM / RUN BY / DATE Test version 0.1                                            COMMENT       …"
Feb 17
John Nivard replied to John Nivard's discussion Support Arduino IDE (custom integration of Wiring libraries
"The NAVSPARk board is the only 3,7 v 100mhz arduino board and that is a very good advantage.
The competition is the arduino pro micro running at 8 mhz
I have studied now several IMU projects and came to this: http://www.varesano.net/projects/hardwar…"
Feb 17
Jason Lin replied to John Nivard's discussion Support Arduino IDE (custom integration of Wiring libraries
"Items under libraries directory  should not work by default, due to underlying hardware differences between ATMEL chip on standard Arduino boards and Venus 822 chip on NavSpark board.
 I know more about hardware, little about programming. Over the c…"
Feb 17
Jason Lin replied to Martin Poller's discussion Adaptor board
"Looks correct. Hmm..... strange."
Feb 17
EKim replied to EKim's discussion Problem with NS-RAW binary raw GPS data output
"Hmmm strange. Would you copy and paste some of your RINEX file data so that I can take a look at the time of the received pseudo range?"
Feb 17
Mark Payne replied to EKim's discussion Problem with NS-RAW binary raw GPS data output
"I see what you mean. If I select a different file with your data (or none at all) I get the same (non) result. But my raw data is logged on the 5th Feb, and I am using daily brdc0360.15n (even tried 350 & 370) and nothing works...."
Feb 17
EKim replied to EKim's discussion Problem with NS-RAW binary raw GPS data output
"Thanks Mark for your effort. I really appreciate it.
I also tried CSRS-PPP and could obtain slightly better results. For the problem of no positions calculated in RTKPost, I suspect that the time of week of your ephemeris is not valid for the logged…"
Feb 17
Mark Payne replied to EKim's discussion Problem with NS-RAW binary raw GPS data output
"Hi there,
I reprocessed (using your data) and got the same results (as you would expect), I then used precise ephemeris and got a slightly better result (see below plot). These links might be useful:
http://igscb.jpl.nasa.gov/components/prods_cb.htm…"
Feb 17
More…

Photos