Hacked Gadgets Forum

April 4, 2009

Tweeting RFID Cat Door

at 3:14 pm. Filed under Complex Hacks, Computer Hacks, Cool Gadgets, Electronic Hacks, What Were They Thinking


If you like to keep track of what’s going on in your house why not track the in and out activity of your pets. This Tweeting RFID Cat Door does exactly that! Have a look at the Twitter results of Gus and Penny. The other beneficial side effect is that it keeps all of the neighbor cats out of the food you buy for your animals. ๐Ÿ™‚

"Each cat has a small RFID tag on the collar. When a cat is in the close proximity of the door, a small RFID reader reads the tag and if the cat is authorized, a servo will unlock the cat door. The RFID reader and the servo controller are connected to an old laptop. The software on the laptop is written in Delphi and for each "cat door event" is sending a Twitter message and a picture to twitter.com:"


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14 Responses to “Tweeting RFID Cat Door”

  1. Pouncer Says:

    Ah, but does it tell you if it was a cat that came through the door, or a fawn?? :p

  2. arni Says:

    nice idea, but not new: http://www.petporte.com/

  3. Alan Parekh Says:

    I also saw something similar in the pet shop recently. There is one big difference between the one you buy in the store and this one. Will the store bought one twitter you the in and out status of your animals? Nope. ๐Ÿ™‚

  4. The voice in your head Says:

    Excellent idea.

  5. BigD145 Says:

    Is “I’m pooping now” less than 140 characters?

  6. Twitter Enabled Cat Door Opens Up a Prime Target for Internet Connected Rodents ยป CraziestGadgets.com Says:

    […] so much more advanced than cats were when I was kid. Bahhh. Get off my lawn you crazy cats. via hacked gadgets var addthis_pub = ‘craziestgadgets’; var addthis_brand = ‘Craziest Gadgets’;var addthis_language […]

  7. thecolor » Twitter Enabled Cat Door Opens Up a Prime Target for Internet Connected Rodents Says:

    […] via hacked gadgets […]

  8. Twitter Enabled Cat Door Opens Up a Prime Target for Internet Connected Rodents Says:

    […] via hacked gadgets […]

  9. Nemal Says:

    I built something similar for my cats using an Arduino microcontroller.

    I documented how I went about it over at http://www.nermal.org/projects/catalog/

  10. Alan Parekh Says:

    Looks cool Nemal.

  11. CATaLOG - RFID Cat Tracking Project - Hacked Gadgets - DIY Tech Blog Says:

    […] projects come up. This RFID Cat Tracking Project called CATaLOG (get it ) is very similar to the RFID cat tracking project that we saw recently. You can now track real time activities of two households of cats on the internet using Twitter! To […]

  12. JB Says:

    super-cool invention! well done!

    i also like the way that the hot girl in the pic is touching two pussies at once.

  13. Chatieres Says:

    Amazing ! Where i can buy it ? I live in France …

    Thanks in advance for your answer !


  14. Comment Grandir Says:

    I like this idea and want to buy one. Do you know where can I get it ?

    Thank you,


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