When something changes in one accessory that changes something for another accessory, update the characteristics.
For example: turning off the fan accessory will also turn off the thermostat accessory. Updating the characteristics of the thermostat accessory from the fan accessory will allow the correct to state to be reflected.
When something changes in one accessory that changes something for another accessory, update the characteristics.
For example: turning off the fan accessory will also turn off the thermostat accessory. Updating the characteristics of the thermostat accessory from the fan accessory will allow the correct to state to be reflected.