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Making Things Talk, 3rd Edition by Tom Igoe

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Address 2007 by Mouna Andraos and Sonali Sridhar This necklace contains a GPS module. When activated, it displays the distance between the necklace and your home location. Photo by J. Nordberg.

8

MAKE: PROJECTS

How to Locate (Almost) Anything

By now, you’ve got a pretty good sense of how to make things talk to each other over networks. You’ve learned about packets, sockets, datagrams, clients, servers, and all sorts of protocols. Now that you know how to talk, this chapter and the next deal with two common questions: “Where am I?” and “Who ...

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