ARM based setup... Will require building OpenCpn
against a ARM based distro which I am sure has been covered somewhere in this thread. (11 pages, I started at this end).
ARM has the advantage of being very low power
especially if you are wanting to run a single
dedicated application eg: OpenCpn
Here is a system I have been considering building, if I get the time and cash. Refitting an older vessel, so need most of the gear
anyway, and would like the advantage of OpenCpn for planning and DR confirmation. Still use paper charts
always, and even own (and use once a day) a sextant
Will probably build against the laptop then change over to the CuBox when I get the initial bugs worked out. Be warned, the CuBox is sold as an "Engineering Development Platform" so your mileage may vary, and lead to pulling of hair, and over consumption
of adult beverages.
) 3 Watts
Receiver ( GlobalSat MR350) <0.06 Watts
Rcvr / GPS Display (Standard Horizon GX2150) Rcv Mode 6.6 Watts
16" Monitor (AOC e1649Fwu) 8 Watts
Keyboard / Mouse (Logitech wireless MK320) <0.05 Watts
Powered 4 port usb hub (power pass thru for monitor)
10-14V to 5V 15A Buck Converter Power Supply 3.6 Watts (no load)
Total theoretical load 18.85 Watts or 1.6A @ 12V
Not bad for Radio
, GPS, AIS
(rcv only), and a computer running OpenCpn.
PolarCom does not have a binary built against an ARM distro but I have contacted PolarNavy requesting they build a binary of both PolarCom and PolarView against an ARM based linux
The AOS monitor is pretty slick. Power over usb but needs two ports
due to 8W draw. Thats the reason for the powered hub, primarily to drive the display. Uses DisplayLink driver which is a native linux
kernel driver for a while now. Open source libdlo if its not in your distro. Since power adapters provided by both CuBox and whoever you get your USB hub from are 120V ac to 5V dc I included a separate DC buck converter that accepts input from 10-14 Vdc with 5Vdc output. Auto-shutdown under 10V or over 15.5. This is a "bare-board" so will require some sort of enclosure. Everything else is cased (CuBox is cool, 2x2x2 cube) and the GX2150 is IPV6 so it will live in the cockpit
as a GPS/AIS repeater while the 16" display will be bulkhead mounted below.
Interested in any comments about this setup. Total cost with all new parts
, ~$700 US