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4, Wi Fi, ZigBee, 6LoWPAN, Thread, Z Wave, Bluetooth Smart, ISA100. 5A, WirelessHART, MiWi, etc. and/or any of a variety of custom or standard wired protocols e. g. , Ethernet, HomePlug, etc. , or any other suitable communication protocol, including communication protocols not yet developed as of the filing date of this document. In some implementations, the smart devices serve as wireless or wired repeaters. In some implementations, a first one of the smart devices communicates with a second one of the smart devices via a wireless router. The smart devices may further communicate with each other via a connection e. g. , network interface 160 to a network, such as the Internet 162.