Introduction: RFID Pet Bowl Access Control

I have two dogs (a miniature schnauzer and a westie) that eat different types of food. But they like to eat each other's food and not their own. So, I've looked for a cheap method to regulate their habits and this is what I've came up with.

The more of these you need to build, the cheaper it gets. For example: 1 RFID reader is $10 but 4 RFID readers are only $22. 100ft of copper magnet wire is $6 but 900ft is $18 (I used about 100ft per antenna).

You could get down to $17.25 (5.5 for the RFID reader + 2 for the copper magnet wire + 0.5 for the battery connector + 3 for the 9V battery + 1 for the plastic bowl + 5.25 for the alarm sound buzzer)

All the details are in the *.PDF file

The video contains the first iteration of the system.

The only changes are:

* everything was glued in place instead of drilling holes and zip tying everything
* the RFID module was modified to have a smaller footprint and placed at the bottom of the bowl (instead of the side of it)
* used a 9V battery instead of 12V DC from a wall transformer
* switched from the huge alarm to the smaller one
Let me know if something isn't clear.

Have fun!

Comments

shack96 (author)2017-03-04

This is a great project! I don't know if you still keep up with this post, but any further information you could share about how you attached the antenna would be most helpful. My daughter and I are working on a project that is a derivative of yours for a school project. Thanks in advance for any help you can provide!

ThomasW157 (author)2016-06-18

Nice project and nice simple documentation in the PDF!

About This Instructable

1,692views

12favorites

License:

More by chupakbra:RFID Pet Bowl Access Control
Add instructable to: