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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

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Problem running adaptor board example code

Hi, I’m trying to write some text to a sdcard with the Navspark adaptor board. With my Navspark GPS I tried to run this example code: https://store-lgdi92x.mybigcommerce.com/content/SD_Card_Access_Example.zip Compiling and uploading works fine, but when I run it nothing is written to the sdcard. After some quick debugging I’ve noticed the code crashes when it tries to make a folder on the sdcard: FRESULT res = fatFsAgent.make_dir(folderName); I’ve connected al the pins of the adaptor board…

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3 Replies · Reply by Kuo Hsu yesterday

Raw data over USB using GNSS Viewer and/or RTKNAVI

Hey NavSpark community, I have recently started my master-thesis on developing a low-cost real time PPP system (which I will dedicate a post on in the near future) and have recieved the NS-RAW this week. While trying out the reciever directly over USB connection I found myself unable to get the connection running with either the GNSS Viewer or RTKNavi. In the image above, the green pwr led is turned on constantly and the blue led is blinking slowly. The white usb cable is a standard micro-usb…

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4 Replies · Reply by ErikTUDelft Apr 19

Event marker for post-processed stop-and-go (~"RTK")

RTK systems are expensive, but if one doesn't need real-time and have access to raw observables, it's possible to do post-processing using RTKLIB and the NS-RAW module. The problem is that surveyors often occupy landmarks in a stop-and-go fashion (or semi-static/kinematic), in between pure static and continuous kinematic sessions. Could you share some wisdom about the effort involved in adding support for an event marker, which users could press while in the field to indicate the occupation…

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2 Replies · Reply by Felipe G. Nievinski Apr 20

Getting Started for high speed GPS-CANBUS project

Hi all, i'm about to start my project for a GPS to canbus interface aimed at race cars, there are already serveral interfaces like the one i whant to do but they are always very pricy. So i woul like to aske the community a couple of questions considering that the gps will be fitted on a race car with roughlt +/-2G accelerations, the 20Hz position update is ok but of course if i can archieve 50hz will be much better, what i don't know is if i should prefere multiple GNSS at 20hz or aiming only…

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1 Reply · Reply by Jason Lin Apr 10

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Activity

Kuo Hsu replied to Jeroen's discussion Problem running adaptor board example code
"You're welcome.  No problem, here is a picture on how I connected the adapter board with NavSpark."
yesterday
Jeroen replied to Jeroen's discussion Problem running adaptor board example code
"Hi Kuo Hsu,
Thank you for your response. I’ve already tried to reformat my sd card. I’ve tried different sd cards with FAT and FAT32 formatting. Same result every time. Could you show me how you connected the adaptor board to the Navspark? I think I…"
yesterday
Fabien R is now a member of NavSpark Community
Saturday
Kuo Hsu replied to Jeroen's discussion Problem running adaptor board example code
"I tested the SD_Card_Access_Example, and I didn't run into any problems.  You can try reformatting your SD card before inserting it into the NavSpark Adaptor Board.  I hope that solves the problem."
Friday
Antonio Pestana is now a member of NavSpark Community
Apr 22
Jeroen posted a discussion
Hi,I’m trying to write some text to a sdcard with the Navspark adaptor board. With my Navspark GPS I tried to run this example code:https://store-lgdi92x.mybigcommerce.com/content/SD_Card_Access_Exam... and uploading works fine, but whe…
Apr 21
Felipe G. Nievinski replied to Felipe G. Nievinski's discussion Event marker for post-processed stop-and-go (~"RTK")
"Hi Julio.  Thanks for your comments.  
So you:
- use NS-RAW and export a RINEX file;
- record the occupation start and end times in the field using an external device;
- modify the RINEX file to insert the event flags;
- process the modified RINEX i…"
Apr 20
Felipe G. Nievinski replied to Kevin Terry's discussion Real-time RTK processing
"So to make it work in real-time, you used a radio link to receiver the base station's observations at the R-pi, which I assume was cable-connected to the rover.
Could you share more details about the radio link?
-F."
Apr 20
Felipe G. Nievinski replied to Aslak Grinsted's discussion Minimizing power consumption
"In trying to minimize power consumption while also keeping position uncertainty acceptable, it's preferable to maximize the uninterrupted session duration, so as to facilitate ambiguity resolution. E.g., it's better to have a single one-hour long se…"
Apr 20
Eldio Santos Jr. and Jeroen joined NavSpark Community
Apr 20
ErikTUDelft replied to ErikTUDelft's discussion Raw data over USB using GNSS Viewer and/or RTKNAVI
"Stefano,
Thanks a lot for your help! I got it running with both software packages. The usb to micro-usb cable I was using was not supported by my computer, I changed it, reinstalled the driver and it got the serial connection running.
Erik"
Apr 19
Stefano Lippolis replied to ErikTUDelft's discussion Raw data over USB using GNSS Viewer and/or RTKNAVI
"Erik,
You don't have to buy anything, the adapter usb to serial is already on the board, you have to install only the driver that you can download from here: http://navspark.mybigcommerce.com/resources/
Once you have installed the driver, your syste…"
Apr 19
ErikTUDelft replied to ErikTUDelft's discussion Raw data over USB using GNSS Viewer and/or RTKNAVI
"Hey Stefano,
I have looked into the driver, and it looks like it needs the PL2303 USB to Serial adapter like this one: http://www.amazon.com/NooElec-Adapter-Harnesses-Jumper-Compatible/d..., is that true? Because this seems incompatible with the mic…"
Apr 19
julio menezes replied to julio menezes's discussion NS-RAW antenna tension and 12V antenna
"Stefano,
For static application with long occupation time ( 1hour ) i have reached 2 cm for 10 km base line with my  patch antennas, compared with L1/L2 .I wanna build a field test with L1/L2 to use as reference to evaluate navspark (base and rover…"
Apr 19
Stefano Lippolis replied to ErikTUDelft's discussion Raw data over USB using GNSS Viewer and/or RTKNAVI
"Erik,
all the Navspark series uses a USB to Serial driver that you can find in the download page. Once you have installed the driver, you have to select the proper SERIAL connection in both software in order to see something ;-)
Stefano"
Apr 19
Stefano Lippolis replied to julio menezes's discussion NS-RAW antenna tension and 12V antenna
"Hi Julio,
in my experience, you can reach less then 20cm accuracy, even with a small and cheap antenna, the problems start with the "stability" of the signal (i.e. jumping) and repeatability. Next week I should be able to run some tests with the Act…"
Apr 19
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