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.