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Making Things Talk, 2nd Edition by Tom Igoe

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Chapter 9. Identification

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Sniff, a toy for sight-impaired children, by Sara Johansson

The dog’s nose contains an RFID reader. When he detects RFID-tagged objects, he gives sound and tactile feedback—a unique response for each object. Designed by Sara Johansson, a student in the Tangible Interaction course at the Oslo School of Architecture and Design, under the instruction of tutors Timo Arnall and Mosse Sjaastad. Photo courtesy of Sara Johansson.

In the previous chapters, you assumed that identity equals address. Once you knew a device’s address on the network, you started talking. Think about how disastrous this would be if you used this formula ...

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