Abstract: A camera includes an always on circuit including a motion or other sensor and/or communications module that are always provided with electrical power, and a sleep circuit including an imaging module configured to activate and provide power to components of the sleep circuit only intermittently and based on a signal from the always on circuit. The communications module can send a notification that the motion sensor has detected motion before or during a start up time period when the imaging module is not ready to capture image data. The communications module can receive a signal while components of the sleep circuit are in a low power mode indicating that a user has activated an application via which the user can request image data from the imaging module, and in response the imaging module can be activated to be in an operational state.

Abstract: A building alarm system and automated door lock arranged to place the alarm system in an armed state when a door lock fails to engage to lock an associated door in a closed position. Activation of a single button by a user or use of specific code by a user to gain access to a building can cause the alarm system to automatically rearm and for door locks at the building to be locked after entry by the user. A first responder code can be used by first responder personnel to gain access to a building after an alarm system indicates an alarm state, e.g., that corresponds to an emergency condition.

Abstract: A building alarm system and automated door lock arranged to place the alarm system in an armed state when a door lock fails to engage to lock an associated door in a closed position. Activation of a single button by a user or use of specific code by a user to gain access to a building can cause the alarm system to automatically rearm and for door locks at the building to be locked after entry by the user. A first responder code can be used by first responder personnel to gain access to a building after an alarm system indicates an alarm state, e.g., that corresponds to an emergency condition.