A little more thought about this and remembered that the free share OpenPlotter software
already has programed in analog or digital sensors that could be added for remote
monitoring. Plotter is an easy download and is designed for a RPi (ARM) computer.
The Plotter also supports OpenCPN
to be used as a chartplotter
w/a host of possible nav. inputs as well as Pypilot for an autopilot
We set up our boat
w/RPi(s) for a nav. computer
and another for the pypilot brain.
IMO these are as good or better than the more expensive brand name electronics
currently being sold.