Environmental sensing with a doorbell at a smart-home

A system for use at a smart-home environment comprising a structure, the system comprising:

• a plurality of smart devices comprising:
• a first smart device positioned at least partially outside the structure and operative to detect a condition of a first phenomenon outside the structure, wherein the first phenomenon comprises a purity of the air outside the structure;
• and
• a second smart device positioned at least partially inside the structure and operative to detect a condition of a second phenomenon inside the structure, wherein the second phenomenon comprises a purity of the air inside the structure;
• and
• at least one processing component communicatively coupled with the first smart device and the second smart device and operative to:
• analyze the detected condition of the first phenomenon in combination with the detected condition of the second phenomenon;
• and
• adjust a functionality of at least one smart device of the plurality of smart devices based on the analysis, wherein:
• the purity of the air outside the structure comprises a characteristic from the following characteristics:
• the level of particulate in the air outside the structure;
• the level of pollen in the air outside the structure;
• the level of mold in the air outside the structure;
• the level of dust in the air outside the structure;
• and
• the level of any volatile organic compound (“VOC”) in the air outside the structure;
• the at least one smart device comprises a device operative to affect a heating, ventilating, and air-conditioning (“HVAC”) system of the smart-home environment;
• the adjustment is operative to open a vent of the HVAC system when the purity of the air outside the structure is greater than the purity of the air inside the structure;
• and
• the adjustment is operative to close a vent of the HVAC system when the purity of the air inside the structure is greater than the purity of the air outside the structure.

A method for controlling an heating, ventilating, and air-conditioning (“HVAC”) system of a smart home-environment that comprises a structure using a computing system communicatively coupled to a plurality of smart devices, the method comprising:

• obtaining, at the computing system from a first smart device of the plurality of smart devices that is positioned at least partially outside the structure, a level of an air impurity of the air outside the structure detected by the first smart device;
• obtaining, at the computing system from a second smart device of the plurality of smart devices that is positioned at least partially inside the structure, a level of an air impurity of the air inside the structure detected by the second smart device;
• analyzing, with the computing system, the detected level of the air impurity of the air outside the structure obtained from the first smart device in combination with the detected level of the air impurity of the air inside the structure obtained from the second smart device;
• based on the analyzing, when the detected level of the air impurity of the air outside the structure is greater than the detected level of the air impurity of the air inside the structure, automatically closing a vent of the HVAC system;
• and
• based on the analyzing, when the detected level of the air impurity of the air inside the structure is greater than the detected level of the air impurity of the air outside the structure, automatically opening a vent of the HVAC system, wherein the detected level of the air impurity of the air outside the structure comprises one of the following:
• the level of particulate in the air outside the structure;
• the level of pollen in the air outside the structure;
• the level of mold in the air outside the structure;
• the level of dust in the air outside the structure;
• and
• the level of any volatile organic compound (“VOC”) in the air outside the structure.