Hi,
I am wondering how to use a temperature sensor in a car with the following constraints:
- not always connected to HA main hub (for example needs to work when car is out of range of my HA setup)
- still show up in HA dashboard (not necessarily real time, can be a history update only when in range of HA setup)
- minimum energy consumption (don’t want to drain my car battery
) - assumeing car is not Android auto and not connected
Like a temp sensor on an esp32 on battery that would store measurements, and update HA dashboard when in range…
How to connect to it from phone when out of range though ?
Maybe there already exists some hardware that can do that ?
Any idea much appreciated