RFID and Twitter tell where your cats are

Becky Stern is a Content Creator at Autodesk/Instructables, and part time faculty at New York’s School of Visual Arts Products of Design grad program. Making and sharing are her two biggest passions, and she's created hundreds of free online DIY tutorials and videos, mostly about technology and its intersection with crafts. Find her @bekathwia on YouTube/Twitter/Instagram.

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@bekathwia

April 21st, 2009 10

Ioan Ghip made this tweeting cat door with an RFID reader and some keychain tags attached to his cats’ collars. The door only lets the cats in (not the neighbor cats) and tweets which one is going in or out, complete with a picture. (Thanks, Matt!)