This is a case for a WEMOS and based on the Fusion Cell by Natnat9259.
You can read a write up of this and how to make it on https://www.instructables.com/id/Fallout-Inspired-Fusion-Cell-Internet-Monitor/
It checks for internet connections and flashes the LED accordingly and if there is a problem, it also fires the relay so that you can hear a clicking sound.
I remixed the stl by hollowing it out some, adding mounts for the Wemos and electronics and a hole for the LED. Its also resized so its now 50mm in diameter.
Quick video = https://vimeo.com/361624106
Unassociated tags: fusion cell
Printer Brand: Prusa
Printer: I3 MK3S
Rafts: No
Supports: No
Resolution: .15mm
Infill: 10%
Filament: Hatchbox ABS Blue
The author marked this model as their own original creation. Imported from Thingiverse.