Lighting
Saloon, cabins, deck, cockpit and underwater lights are managed on separate circuits. A "Night passage" scene leaves only red or very dim light inside, so the helm keeps their night vision. An "Evening at anchor" scene brings up the deck and cockpit lights and switches on the underwater lights. Lighting on boats usually runs on 12 or 24 volt DC, and the LED dimming has to be designed for that voltage.
Climate
Air conditioning and heating in the cabins are set zone by zone. Before you head down to the boat, you can switch on the air conditioning from your phone so the saloon is cool when you arrive. That needs the boat to be on shore power or the generator to be running. The automation is set up to check this, so the air conditioning does not run off the batteries and drain them.
Audio
Speakers in the saloon, cockpit and foredeck are handled as separate zones, so one thing can play on deck and something else below. Outdoor speakers need to be marine models built to handle water and sunlight.
Cameras
Cameras in the engine room, on the swim platform and at the gangway are useful both underway and in port. When manoeuvring, the stern camera shows on the helm display. In the marina, you get a phone notification if motion is detected. For general points on cameras, see smart security and CCTV.
