I started the first prototype of the Smart Pet Collar.

First I had to make a solid model of the actual parts.

The blue section is the main PCB and components, The yellow box is the 10-pin J-Link connector.

The green section is for the battery, and the silver and violet section is the NFC antenna.

From this I designed a simple enclosure that would fit on my pup's collar.

Then export a .stl file and print a part.

Here's a pic of the assembled unit.

Version 2 will have more of a curved interface to the collar, and an o-ring grove for a sealed top.

Update.....

Here's version 2

The enclosure is now 3 pieces held together with small screws.

The top is curved and has a cutout for the J-Link connector.

The middle is just a round cutout, I'm not going to use the NFC function at this time so I don't need the cutout for the antenna.

 

The bottom is a channel for the collar to slip into.

I used a translucent green for the top so I can see the LEDs light up even with the top in place.