This necklace uses an Adafruit Pro Trinket and an OLED screen to flash bitmaps of you and your loved one in between hearts. A tiny LiPoly battery powers the pendant discreetly in the black ribbon. Warning: Dog and cat pics may attract werewolves.

This guide was first published on Feb 18, 2015. It was last updated on Feb 18, 2015.

This page (Overview) was last updated on Jun 05, 2022.

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