is there a way to make a key fob size object to attach to pet to track on google maps or other gps map software?

Jayefuu6 years ago
Funny you should ask... this was posted on Hackaday this week:

It's a little bit bigger than keyfob sized, but does the job and is a good start for your project if you want to make it smaller.
orksecurity6 years ago
The biggest challenge would be in building a GPS receiver small enough and light-weight enough and able to run on a small enough battery. Given that some cell phones are now GPS-enabled, I would guess that the answer is "Yes, there is probably a way to do so, or at least to approach that size."

Whether it's possible to homebrew one is a different question. I'm guessing it would need to be surface-mount components, very densly arranged on the circuit board., assuming you can design the circuit and get the components.