Permanent collar QR

Module 13FEFFC5E658

Permanent QR

https://icollar.skydav.work/c/13FEFFC5E658

Hard-coded from this chip’s eFuse MAC — same on every boot, unique per collar. Print / laser this for the back of the collar.

Silicone tip: ink on soft silicone stretches, scuffs, and loses contrast. Prefer laser-etched rigid tag, 2-shot molded insert, or PET label under a clear window — not bare pad-print on stretchy shell.

Emergency Wi‑Fi when lost (high battery): iCollar-HELP / icollar1 → open http://192.168.4.1/find