alarm system cellular
3. In some implementations, the main board 1110 includes at least a central processing unit CPU, a memory system 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. , in a porch or a backyard of a house. For example, one or more network connected cameras are often installed on an outer wall of a house, and configured to provide video monitoring and security in the outdoor environment. These smart devices e. g. , the network connected outdoor cameras are exposed to severe weather conditions e.