Decorative lighting has become quite popular, with options such as LED surface panels, strip lights, COB lights, spotlights, ...

The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things ...

The audio component centers around the SS8550 PNP transistor (Q1) which serves as a driver for the passive buzzer (BZ1). This ...