hello,
do you know anyone playing with Arduino (open hardware microprocessor board) to make a GPS data logger that would fit windsurfing speed needs? I am trying to read through fora and find many attemps for dog logger, drone positining... Not yet a windsurfing data logger...
i found some kind of development board called navspark, but I am little rusted - 20years - in realtime software programming... I feel that with this navspark or another, it must be possible to create a logger for about 50-60€.... With all our software wishes....maybe even with a display... For some € more....
thx for the hints.
plettil

I have 2 NavSparks but then noticed that their binary protocol has no SDOP or other speed accuracy value. So I let it be. But I made another logger using Fubarino SD and 128x64 OLED and the uBlox NEO 6m. First it was writing 5Hz .ubx files and displayed the 2s, 10s and 5x10s speeds to the OLED. But then I noticed the .ubx is not really supported yet by the software available around so I changed it to save 1Hz .sbp files. It worked fine, etc. but it won't make it into a product. I'm just a programmer.

Now I'm using the GT-31 again with the Canmore f-porter 102+ and the Suunto Ambit 2S as they are good enough for the speed contests here in Finland.

Have you guys looked at the flysight?
www.flysight.ca/support.htm
It's open source software, so you could probably convert it from a skydiving device into a windsurfing one.
It's 5hz but I'm not sure about sdop output.

Select to expand quote

decrepit said..
Have you guys looked at the flysight?
www.flysight.ca/support.htm
It's open source software, so you could probably convert it from a skydiving device into a windsurfing one.
It's 5hz but I'm not sure about sdop output.

Yes, it is just a bit expensive. ...but very very good....I was hoping for a bit less expensive...

Select to expand quote

fin151 said..
I have 2 NavSparks but then noticed that their binary protocol has no SDOP or other speed accuracy value. So I let it be. But I made another logger using Fubarino SD and 128x64 OLED and the uBlox NEO 6m. First it was writing 5Hz .ubx files and displayed the 2s, 10s and 5x10s speeds to the OLED. But then I noticed the .ubx is not really supported yet by the software available around so I changed it to save 1Hz .sbp files. It worked fine, etc. but it won't make it into a product. I'm just a programmer.

Now I'm using the GT-31 again with the Canmore f-porter 102+ and the Suunto Ambit 2S as they are good enough for the speed contests here in Finland.

Great! why did you stop using your own ones?

Select to expand quote

fin151 said..
I have 2 NavSparks but then noticed that their binary protocol has no SDOP or other speed accuracy value. So I let it be. But I made another logger using Fubarino SD and 128x64 OLED and the uBlox NEO 6m. First it was writing 5Hz .ubx files and displayed the 2s, 10s and 5x10s speeds to the OLED. But then I noticed the .ubx is not really supported yet by the software available around so I changed it to save 1Hz .sbp files. It worked fine, etc. but it won't make it into a product. I'm just a programmer.

Now I'm using the GT-31 again with the Canmore f-porter 102+ and the Suunto Ambit 2S as they are good enough for the speed contests here in Finland.

You will find that GPS-Results supports UBX file format. Manfred has made some 10hz loggers using UBlox chipsets and they have tested very well.:-)