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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

Forum

Serial.print compile errors

The serial print functions are producing compile errors - e.g. T005:43: error: invalid conversion from `char' to `const char*'.Line 43: Serial.print('A');  The print functions seem to be included in ...NavSpark\hardware\arduino\leon\cores\arduino. But are not used by the Navspark HardwareSerial? Is there any particular reason for the incompatibility?I see that we can use ... sprintf(buf,....); Serial.print(buf); void TEST(void) { Serial.print("123"); //Serial.print(F("123")); //fails…

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2 Replies · Reply by Ralph Loveday yesterday

APRS (ham radio) Tracker ?

I'm interested to get this NavSpark for the following usage.. Used as an APRS Tracker ( http://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System ) - Connect to an APRS modem ( also running a atmega328 with BeRTOS to encode/decode APRS packet )- Connect to LCD/TFT for displaying  GPS loc / decoded APRS packets ( TFT uses SPI protocol )- Do some algorithm based on the GPS speed/headings/distance travel  I'm currently using the TinyGPS+ library... how easy/hard is it to convert to the…

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1 Reply · Reply by Jordi Gauchia on Wednesday

Handling GPS antennas

Hi, could you point me to resources or give tips about how to handle the ceramic patch antennas? I read that the antenna / the internal LNA is very sensitive to ESD, so I would like to know how to appropiately handle and mount it. Also I would like to enclose the antenna. Metal would obviously be a bad choice, but do plastics worsen the reception (and if so, which)? Are there off-the-shelf antenna cases for those? Thanks!

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4 Replies · Reply by Lukas K on Wednesday

Win/NavSpark GL Arduino code does not run / upload only through GNSS viewer

Hi, I have two NavSpark GL modules from the campaign (red dot on bottom) and am unable to use them with Arduino. GNSS Viewer works just fine. Using Arduino-1.5.6-r2-Bin-NavSpark, latest JRE 32bit, Windows 7, Arduino examples from resources webpage. I am unable to upload through the Arduino environment, either starts uploading and hangs in uploading until I have to close the window, waiting 10minutes for that. Alternatively the upload fails with error code 4 or 6. Alternatively I have tried…

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10 Replies · Reply by Mus Ti on Monday

Blog

UART1 to 900MHz Radio

Wanting to have a mobile wireless base station, I took a Hextronik 900MHz radio and connected it to my SD adapter board as follows:

Radio      SD Board

5v           5v Out

Gnd        Gnd

Rx          Tx1

It works fine talking wirelessly to my receiver radio plugged into USB on PC, but if I want to change any configuration on the board I have to plug in directly to the USB on the module. What is the reasoning behind not providing a Rx1?

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Comments: 2

GPX File format

Hi!

Anyone knows where I can find a free (opensource, etc...) GPX File output library, written in C or similar ?

In my project I'll add a GPX export feature to the satellite logs.

Thank you!

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FlexGPS : Flexible GPS Development Platform

From numerous requests in the past, we are now working on something that hopefully would address those wished items in a uniform way.

FlexGPS is a small 19mm x 19mm core module with below major functional parts:

SE4150 + Venus822 (A) GPS receiver: Capable of running standard 1Hz ~…

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Comments: 9

Activity

Ralph Loveday replied to Ralph Loveday's discussion Serial.print compile errors
"Thanks Jason. I thought that this might be the case.
Changing between various coding platforms & hardware, it's hard to remember the differences between them.
Perhaps it would be clearer to change the function name? So that it is not implying Arduin…"
yesterday
Jordi Gauchia replied to Christoph Schellenberg's discussion Two Wire Problems - Parallax 3-axis Compass HMC5883L
"Cool!!
Later , I'll test it!
Regards!"
yesterday
Christoph Schellenberg replied to Christoph Schellenberg's discussion Two Wire Problems - Parallax 3-axis Compass HMC5883L
"I translated a library for this compass that uses the self-test feature/ calibration of the HMC5883L.
I'm not a coder so it may look a bit clumsy but it works.(apart from the debugging function but who needs it if it works ;))
Hope it helps someone…"
yesterday
Jason Lin replied to Ralph Loveday's discussion Serial.print compile errors
"See page-150: https://store-lgdi92x.mybigcommerce.com/content/NavSpark-Programmer...
Character string is needed for Serial.print argument."
yesterday
Kameron Larsen is now a member of NavSpark Community
yesterday
Ralph Loveday posted a discussion
The serial print functions are producing compile errors - e.g. T005:43: error: invalid conversion from `char' to `const char*'.Line 43: Serial.print('A'); The print functions seem to be included in ...NavSpark\hardware\arduino\leon\cores\arduino. Bu…
Thursday
Lukas K replied to Lukas K's discussion Handling GPS antennas
"From what I've read (was about external GPS antennas for caravans, but propably applies here too) is that you should have some distance between the antenna and metal underneath. Also I used to keep my antenna in the conductive anti-ESD bag the Navsp…"
Wednesday
Jordi Gauchia replied to Stanley Seow's discussion APRS (ham radio) Tracker ?
"Hi!
I'm going to give you my opinion.
NavSpark GNSS library has implemented some algorithms like speed, headings, distance between two coordinates... take a look to this document: https://store-lgdi92x.mybigcommerce.com/content/NavSpark-User-Guide..…"
Wednesday
Stanley Seow posted a discussion
I'm interested to get this NavSpark for the following usage..Used as an APRS Tracker ( http://en.wikipedia.org/wiki/Automatic_Packet_Reporting_System )- Connect to an APRS modem ( also running a atmega328 with BeRTOS to encode/decode APRS packet )-…
Wednesday
Stanley Seow and Benson Kalahar joined NavSpark Community
Wednesday
Jason Lin replied to Lukas K's discussion Handling GPS antennas
"Unless unhappy with signal reception performance, probably no need bother trying these?"
Wednesday
rsaf replied to Lukas K's discussion Handling GPS antennas
"Do i need to put some metal sufrace under antena for better reception? I seen antena placed on computer side cover somewehere on this site."
Wednesday
Benson Kalahar replied to Chris Williams's discussion How to use SD card reader/writer with NavSpark
"Yes, this looks very promising.  Thank you!"
Wednesday
Jason Lin replied to Chris Williams's discussion How to use SD card reader/writer with NavSpark
Wednesday
Benson Kalahar replied to Chris Williams's discussion How to use SD card reader/writer with NavSpark
"Has there been any progress on this front? I've ordered a pair of NS-RAW modules, but I'd also like to use my existing two navspark devices to log positions. Do you have any advice for me?"
Wednesday
Jason Lin replied to Lukas K's discussion Handling GPS antennas
"Take it by PCB, avoid touch metallic film surface will do. 
Plastic housing will have less attenuation on signal. Housing enclosure will shift its antenna center frequency degrading signal reception, degree varies with material, thickness, ...; larg…"
Tuesday
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