Abstract: A method performed at a computer system includes: obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on the door lock activation data for the door and the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A method performed at a computer system includes: obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on the door lock activation data for the door and the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A method performed at a computer system includes: obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on the door lock activation data for the door and the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A method performed at a computer system includes: obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on the door lock activation data for the door and the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A smoke detector includes an illuminator, a light sensor, a memory, and a microprocessor. The illuminator is configured to emit a first electromagnetic signal having a first center wavelength and a second electromagnetic signal having a second center wavelength. The light sensor is configured to generate (a) a first clean-air voltage in response to receiving the first electromagnetic signal and (b) a second clean-air voltage in response to receiving the second electromagnetic signal. The memory stores non-transitory computer-readable instructions. The microprocessor is adapted to execute the instructions to: (i) determine a first signal drift value from the first clean-air voltage and a first reference voltage, (ii) determine a second signal drift value from the second clean-air voltage and a second reference voltage, and (iii) determine the operational state from both the first signal drift value and the second signal drift value.

Abstract: A method performed at a computer system includes: obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on the door lock activation data for the door and the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A method performed at a computer system includes: obtaining current location data for a user; obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on two or more of: the current location data for the user, the door lock activation data for the door, or the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A smoke detector includes an illuminator, a light sensor, a memory, and a microprocessor. The illuminator is configured to emit a first electromagnetic signal having a first center wavelength and a second electromagnetic signal having a second center wavelength. The light sensor is configured to generate (a) a first clean-air voltage in response to receiving the first electromagnetic signal and (b) a second clean-air voltage in response to receiving the second electromagnetic signal. The memory stores non-transitory computer-readable instructions. The microprocessor is adapted to execute the instructions to: (i) determine a first signal drift value from the first clean-air voltage and a first reference voltage, (ii) determine a second signal drift value from the second clean-air voltage and a second reference voltage, and (iii) determine the operational state from both the first signal drift value and the second signal drift value.

Abstract: A method performed at a computer system includes: obtaining current location data for a user; obtaining door lock activation data for a door of a dwelling of the user; obtaining current occupancy data for the dwelling; setting a configuration of a controller for the dwelling, based at least in part on two or more of: the current location data for the user, the door lock activation data for the door, or the current occupancy data for the dwelling; the first configuration including for each sensor in a set of sensors coupled to the controller, disabling the sensor or disabling alerts from the sensor.

Abstract: A method performed at a computer system includes: receiving current location data for a user; receiving door lock activation data for a door of a dwelling of the user; receiving current occupancy data for the dwelling; determining a configuration of a controller for the dwelling, based at least in part on the received current location data for the user, the received door lock activation data for the door, and the received current occupancy data for the dwelling; if the door was locked from inside the dwelling and the user is present in the dwelling, setting or sending instructions to set a configuration of the controller to a first configuration; and, if the door was locked from outside the dwelling and the user is not present in the dwelling, setting or sending instructions to set the configuration of the controller to a second configuration, distinct from the first configuration.

Abstract: A method performed at a computer system includes: receiving current location data for a user; receiving door lock activation data for a door of a dwelling of the user; receiving current occupancy data for the dwelling; determining a configuration of a controller for the dwelling, based at least in part on the received current location data for the user, the received door lock activation data for the door, and the received current occupancy data for the dwelling; if the door was locked from inside the dwelling and the user is present in the dwelling, setting or sending instructions to set a configuration of the controller to a first configuration; and, if the door was locked from outside the dwelling and the user is not present in the dwelling, setting or sending instructions to set the configuration of the controller to a second configuration, distinct from the first configuration.