| http://www.w3.org/ns/prov#value | - The microportal 150 may include a microcontroller 420, a first radio such as a ZigBee radio 430, a second radio such as a non-ZigBee radio such as a mesh NAN radio (or a WAN radio or a PAN radio) 440, a flash memory or other non-volatile memory 450, and a real-time clock 460 or other device for counting or measuring an elapsed time.
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