Monitor remote devices

Installation Home Assistant OS
1

Hi to all I am new here so if I am in the wrong section or say the wrong things I will adjust in time.

I have Hass.io running at home on a Pi3 with about 20 Sonoff/Tasmota and it is going well.
I have a boat with access to Wifi and I would like to monitor its battery banks voltages, bilge pumps operations and fridge temp.

I am pretty confident on the electronic part of this project. I know I could create another Pi3/HA on the boat but I would rather have the devices readings in my existant HA located at home. I am using MQTT, I setup SSL and am remotely accessible.

I am thinking of setting up a Pi zero W on the boat, connect my devices and run some Pyton to relay the information to MQTT at home.

My questions are, am I going the right direction? and are there any guidelines/info out there? (did not find anything yet)

Thanks for any help (HASS.IO is super great!)

2

Yes. send sensor state to HA from boat using MQTT will work.

MQTT use username/password?

3

To use just set up a domain that forwards the MQTT port to HA.
Works great I have sensors in my car and use data tethering on iPhone.