findmycat / hardware-files Goto Github PK

• Use a eSIM or SoftSim: The current nano-sim takes a lot of space, it needs the ESD protection IC, the SIM tray and the SIM card itself, not only adding to the space but also the cost. Nordic released their plans to support SoftSim in Q1 of 2024 so that's promising. If SoftSim doesn't work; an eSIM is a no brainer for the next revision.

• Consolidating the antennas: The nrf-9160 shares it's radio front-end between the GPS and LTE; meaning the only one of the modules can be active. Hence, we can consolidate the antenna into one and use a RF switch to connect the antenna using appropriate matching network to LTE/GPS as appropriate.

• Replace the DWM3001C: The Qorvo UWB module is expensive and big. This will be replaced with now available Type2AB. This reduces the cost by half and the size as well. Win win.

• SWD programming: investigate if it is possible to route it through USB instead

• Magnetic inductive charging: investigate.

Investigate if SWD programming is possible through a more accessible USB port.

As pointed out by @VinPropane the BOM file for JLC production needs to be added. Perhaps will help if a manufacturing specific folder is added with instructions.

I am also interested in the Kicad layout files for a completely different project.

Hi

Thanks for sharing that fantastic project :) Do you plan to develop a LORA version ? It would make it even cheaper and lasts longer on a battery charge.

Thanks

Vincèn

Hi!!!

This is a great project and being OpenSource is indeed the best of it!

Thank you for this!

Still there is one issue that remains unsolve:. The device is too big!

A few years ago - probably 8-10 years - i searched for a solution like this. Beside other problems they all had a size problem! For a dog, it's OK... but not for a cat!!!

So, here's my question: is it possible to make it smaller?
It's too wide, too thick...

Everything else is absolutely brilliant!!! And i would surely be interested in getting one the next time i get a cat!