List Archive: gentoo-embedded
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> I may also rig a temperature sensor to the boat hull, or via a tether.
If you want this to scale to potentially commercial end users, I would
consider an NMEA based off the shelf sensor? Although the prices are
quickly > £100, ie non trivial, NMEA 0183 sensors are plentiful and
NMEA2K is getting rapidly available (add an Actisys bridge to get data
into the computer)
> What concerns me about openstreetmap, is I had envisioned a system where
> the database is downloaded to the operator's embedded system depending
> on the anticipated area of local/regional travel, thus not having to
> depend on constant/reliable internet access.
Can you not download openstreetmap?
Your bigger issue is that it's not really a nautical mapping system?
In the USA you can have all the raster nautical and aviation maps for
free (cool). The argument goes that the tax payer already paid for
them, so the data is made completely freely available
> My reason for using this list, is to flush out any gentoo-ish
> common ground or any hardware suggestions; not an expose
> on openstreetmap....
I think you should consider some other options also:
- Small embedded server which collects the information, with a handheld
system then connecting via http or similar. I like the PC Engines Alix
- OpenCPN customised for your needs
The top one is similar to something I'm working on. We
(http://www.mailasail.com) are building a small embedded router for
connecting all the communications bits on a boat together and we can
easily take in NMEA and repeat it via GPSD. I plan to either write, or
something along the lines of the ipad "NMEARemote" app. The goal would
be to use all the responsive magic that's easy to get these days to make
it scale from a phone to tablet screen.
I think with a decent browser on your tablet you can fairly easily build
decent web apps these days, especially if you don't need to target IE.
To my eye this dramatically simplifies the problem because you can use
off the shelf components and focus on the software
As an aside if anyone here is interested in extra work I have a fairly
big backlog of web based work. Probably need backbone+jquery skills
with a Rails/Mojolicious backend to talk to