wireless house alarm
, input devices 414, image/video capture devices 418, location detection device 416, sensors e. g. , built in sensors 490, interfaces e. g. , communication interfaces 404, radios 440, and/or other components of the smart device 204, and for preparing and sending processed data to a device for review e. g. , including memory and a memory controller. In an example, the main board 1110 includes a system on chip SoC, a memory e. g. , double data rate synchronous dynamic random access memory DDR SDRAM, a memory controller, and an electromagnetic interference EMI fence. In some implementations, the EMI fence, in conjunction with EMI shielding, is adapted to substantially prevent electromagnetic interference with the SoC, the memory and/or the memory controller from outside sources.