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Re: [gpsd-users] Newcomer, with a question
From: |
David J Taylor |
Subject: |
Re: [gpsd-users] Newcomer, with a question |
Date: |
Fri, 27 Jul 2018 19:39:30 +0100 |
Newcomer to this list and GPSD in general, with a question way down at the
end.
The story is this. On my little sailboat, I find that I tend to use my
Android tablet (or even my Android phone!) more than I use my perfectly fine
chartplotter, even though the chartplotter has the biggest screen of the
lot.
I guess I like the human interface more; panning and zooming is more
intuitive. Also, entering routes and waypoints is a whole lot easier on the
little devices, if only because I can do it all at home.
But panning and zooming on these devices is also slow; the reduced
horsepower is an issue. Also, the accuracy of my position using the
internal GPS is not nearly so good as the fancy unit attached to the
chartplotter.
So my plan was to use a Windows tablet running OpenCPN and connect the
external GPS to the tablet via WiFi.
Sadly, that otherwise excellent (IMHO) plan took me down any number of
ratholes .. virtual COM ports, UART->TCP bridges and so forth.
Then I looked closer at OpenCPN and discovered that the virtual COM port
thing is now effectively built in to the software. Looking closer still, I
discovered that newer versions of OpenCPN support GPSD, which looks like
pretty much exactly what I want!
HOWEVER, what I don't want to do is have a largish PC running Linux on
board; this is a _small_ sailboat.
So, what's the smallest Linux device with enough poop .. RAM, processing
power, etc. .. that will do what I want; receive serial GPS info and
rebroadcast it via WiFi?
Thanks for any thoughts.
Alan
==================================
Alan,
I would look at the Raspberry Pi, even the low-end Raspberry Pi Zero W would
do that job.
https://www.raspberrypi.org/products/raspberry-pi-zero-w/
On a slightly related topic (precise timekeeping with NTP on the RPi) I have
some notes which might at least trigger some ideas about connecting GPS
devices:
https://www.satsignal.eu/ntp/Raspberry-Pi-NTP.html
https://www.satsignal.eu/ntp/Raspberry-Pi-quickstart.html
Cheers,
David
--
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- [gpsd-users] Newcomer, with a question, Alan Rothenbush, 2018/07/27
- Re: [gpsd-users] Newcomer, with a question,
David J Taylor <=
- Re: [gpsd-users] Newcomer, with a question, Dominic Amann, 2018/07/27
- Re: [gpsd-users] Newcomer, with a question, Alan Scott, 2018/07/28
- Re: [gpsd-users] Newcomer, with a question, Владимир Калачихин, 2018/07/28