it’d be super useful for identifying which device is which if we could just see the serial number or identifier from the device itself. In the device info box
This would be especially useful with the Tado integration (for heating and climate control). The information seems to be available in the API, because when the device is first discovered, the serial number is used as the device name. But if you change the name to something more meaningful (eg. “Living room thermostat”) the serial number is no longer visible anywhere in HA.
I’ve currently worked around it by including the serial number in the description, but that’s messy, as it appears everywhere!
Maybe the serial number could be exposed as an entity, if changing the front-end device information display itself is too invasive? (Please say if this should be a separate feature request!)