We need physical units

[Yoric]

Consider a IoT heater. Setting it to 100ºF or 100ºC will cause very different results and possibly life-threatening accidents.

So when dealing with temperature, we'll need to know which unit is expected by the device and which unit is entered through the UX, then perform conversions as needed.

I'm not sure at which layer we need to do this.

[mcav]

This seems like it would be handled taxonomically when each adapter/device-type specifies its interface. This issue is too broad to be actionable, can we close it and track the requirement elsewhere if necessary?

[Yoric]

Yes, that's handled in the Taxonomy.