RFID Toys Homepage
Holy crap, check out the Dangerous Things store!
Forum Home Forum Home > Projects and such > Reader Projects
  New Posts New Posts RSS Feed - RFID Dog/Cat Bowl - Finished!
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

RFID Dog/Cat Bowl - Finished!

 Post Reply Post Reply
Author
Message
mlarsen View Drop Down
Newbie
Newbie


Joined: 07 September 2007
Status: Offline
Points: 4
Post Options Post Options   Thanks (0) Thanks(0)   Quote mlarsen Quote  Post ReplyReply Direct Link To This Post Topic: RFID Dog/Cat Bowl - Finished!
    Posted: 07 September 2007 at 12:40pm
Hey all. I purchased and read Amal's book to assist me with an idea I had. Thanks to Amal, I was actually able to make it!

I call it a "RFID pet food access control system." I made an instructable so anyone can make it. Here is a link to the instructable: http://www.instructables.com/id/EJYN5X9F5Y3KYBJ/

Let me know what you think!






Edited by mlarsen - 07 September 2007 at 12:44pm
Back to Top
amal View Drop Down
Admin Group
Admin Group
Avatar

Joined: 22 November 2005
Location: United States
Status: Offline
Points: 2124
Post Options Post Options   Thanks (0) Thanks(0)   Quote amal Quote  Post ReplyReply Direct Link To This Post Posted: 11 September 2007 at 10:56pm

Hahah this is aus! Do you notice problems with the tag orientation? Nice work using the alarm as a Pavlovian response mechanism ;) Have you considered automating food dispersal based on tag ID? I was thinking maybe a hopper style feeder, except you could add a rotating spiral in the food drop path that would block food from falling into the tray, but allow food to flow when the spiral was turning. If a dog not allowed to eat from that bowl tried to get food, the alarm could still play a role.

Having the hopper would also help with the antenna coverage issue, since the dog could not approach the bowl from behind the silo, you'd only really have to cover the front area of the bowl. However, if you're still interested in getting 360 degree bowl coverage, you might order some spare antennas from qkits and try expanding the loop and running the antenna around the entire bowl. You'll get less range, but if the dog puts the tag right up to the bowl edge, it should still work.

Amal ;)

www.amal.net
Back to Top
mlarsen View Drop Down
Newbie
Newbie


Joined: 07 September 2007
Status: Offline
Points: 4
Post Options Post Options   Thanks (0) Thanks(0)   Quote mlarsen Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2007 at 8:50am
Thanks Amal :-)  I really appreciate you taking the time to write the book.

I'm not sure if I'm going to make it into an automated feeder. Right now, I'm trying to figure out how to make an antenna that's large enough to go around the rim of the bow. So far, all of my attempts have not worked. I simply don't have to tools to make it happen.

I'm looking to make a 9" circular antenna. Any idea how many loops I'll need with #30 or #32 magnet wire?
Back to Top
mlarsen View Drop Down
Newbie
Newbie


Joined: 07 September 2007
Status: Offline
Points: 4
Post Options Post Options   Thanks (0) Thanks(0)   Quote mlarsen Quote  Post ReplyReply Direct Link To This Post Posted: 17 September 2007 at 11:43am
Actually, any gauge wire will do... just as long as the loop is 9" in diameter.
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.172 seconds.