Here's an overview of unique projects built using ESP8266, ESP32, and similar hardware:

1. A synchronized snapcast client for multi-room audio.
2. A stratum-1 NTP server with GPS time display.
3. HUB75 signs displaying public transport status.
4. An "on-air" sign triggered by camera/mic usage.
5. A pixelated fire decorative sign.
6. A Kindle-controlled bedside lamp.
7. An HDMI switcher and full-house blinds controller.

These projects enhance daily convenience and entertainment through creative and practical applications of electronics.