These engineers on TikTok made a vest for the Eras tour with LED strips that flash in sync with the wrist bands. Video below. Summary: they had a wrist band fr

These engineers on TikTok made a vest for the Eras tour with LED strips that flash in sync with the wrist bands. Video below. Summary: they had a wrist band from a previous show, connected the terminals on its microchip to their own microcontroller, extracted signals from the wrist band man in the middle style, programmed the microcontroller to interpret the signal, lit up the vest. I thought it was rather in the spirit of hacker news. https://www.tiktok.com/@gnewjay/video/7231711001643879726 https://www.tiktok.com/@gnewjay/video/7231711001643879726