Round AMOLED Badge Does All Kinds Of Cool Stuff

A maker built a custom firmware for the Waveshare ESP32-S3-Touch-AMOLED-1.75C round display module, turning it into a wearable badge with an air mouse, touchpad, extra keys, a clock, games, audio recording (up to 52 minutes WAV), and a fluid simulation animation. The developer optimized the liquid animation from 3 FPS to 18 FPS and extended standby battery life from 11.9 to 19.6 hours by enabling the CONFIG_PM_ENABLE flag along with other tweaks. The firmware can be flashed directly from a browser.

Source: https://hackaday.com/2026/09/16/round-amoled-badge-does-all-kinds-of-cool-stuff. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.