Custom AMOLED Wearable Makes Great Icebreaker

A maker named Sophie D built OpenChoker, a light-up choker necklace featuring a small AMOLED touchscreen flanked by RGB LED strips, powered by an RP2350-based PCB and an 18650 battery cell. The write-up highlights the difficulty of designing a PCB footprint for the Hello Lighting HL020E21-02 display since no reference design existed, notes solid 16-hour battery life, and shares two hardware gotchas: capacitive touch sensitivity degraded badly once the screen was mounted and isolated on the body, and adhesive used near a deadline melted wire insulation, exposing bare copper.

Source: https://hackaday.com/2026/09/10/custom-amoled-wearable-makes-great-icebreaker. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.