OpenMarine

I want to install a switch that will allow me to power up regardless of whether the N2K network is connected. I want this while testing when the N2K network isn't needed.

ON 1 - Would power up with 12VDC to the switch connector on the MacArthur directly from the primary 12VDC source. 
OFF - No power; RPI5 would not power up
ON 2 - Would power up with 12VDC to the switch connector on the MacArthur from the N2K drop.

I don't see a reason or problems with this setup.

Pax,
Mo

Something like this?

https://macarthur-hat-documentation.read...alone-mode

Ah, yes. And more graceful than my thinking, too. Thanks.