I’m a returning HA user, as my home installation was replaced with Athom Homey.
I’d however like to extend my “home automation” to my boat, and use RPi with HA for that purpose.
I was thinking of just routing all info to my home directly, but it might be better to have HA running in the boat, receiving local MQTT sensor data from various sensors I’ll make, and then publish MQTT signals from RPi which can be picked up from Homey.
I’m not exactly sure how I want to do things, but this seems to be the better way to do it. That way even if I run out of data (4G) I can still log everything to HA. I might also be able to publish MQTT less frequently than receiving from sensors etc.
But regarding that - what would be best for securing the setup? For me it makes sense to use VPN rather than port forwarding for increased security. I’m not really using VPN for anything else at home right now, everything is shut. So I was thinking; maybe the VPN server should be in the boat rather than at home? Thoughts?
I have a QNAP NAS at home which might otherwise act as a VPN-server (QVPN or an LXC maybe) and have VPN-client on the boat.
I need it to connect automatically I guess so I’m sure I receive those MQTT packages to my home, and send signals back to the boat (it will mostly be temperature/battery monitoring).
Anyone who can help push me in the right direction here?
Also - Would a Pi Zero W be sufficient? Otherwise I do have some RPi 2 and 3 laying around.