ClueHacker News
Archiveverified release

A PCB business card with a batteryless LED, powered by the phone that taps it

Posted by thekevintang on 2026-09-01 · kevin.md

Discussion record

Score
105
Comments
32
Read
32

The discussion on Hacker News · The article

Full-thread reading

The retained reading has not passed independent publication checks. Its summary is withheld.

The summary gate never changes the score, comment count, story metadata, or retained-history figures above.