Are there projects that you would finuisng a SIM card ideal for? I am thinking weather station but there are surely loads.
I have a few lying around with data only that I would like to do something with
I assume you just mean mobile data in general and, yeah, a few. My car has a remote app that works over WiFi, so I installed a small LTE router running OpenWRT with a WireGuard tunnel back to the home network that makes it accessible to Home Assistant anywhere. Now Home Assistant can keep an eye on charge/fuel levels, door locks and more, as well as remotely trigger the heater or start/stop charging. The SIM is £2.50/mo for 2GB which is far more than I need.
For other things like weather stations I’d be inclined to say that you’d be better using a less centralised, low-power network like LoRA (eg. Meshtastic).
Exactly what I was looking for.
Meshtastic, looks interesting. Have you any resources?
Not sure about what you mean…
But here is an interesting talk about playing with sim cards:
Just wondering is there a market or interest in building projects that use sim cards. I thought there might be scope for the likes of remote devices like trail cameras and weather stations to feed back information to a selfhosting server or HA.
This is an interesting vid, I’ll have to come back to it after work.
My RV Home Assistant (running on a RPi5) could use one to stay connected all the time.
Problem is I don’t want to pay the fees to do that.
Thats interesting, I never thought about multiple instance management for HA. Could be useful as commcercial tool for monitoring alarms and automations across multiple sites.
Yeah I have a home Home Assistant and an RV Home Assistant.
They are connected via Remote HA, when I’m home, but that’s not really what I was thinking - I was more thinking about ways it could notify me if it’s getting too warm inside for our pets.
@Squizzy
Like this?
But it’s just me, our RV and two friends.
