In the realm of technology and art fusion, interactive installations often transform intangible experiences—such as music and light—into tangible wonders that participants can trigger with their own hands. At its core, these installations utilize touch sensors, using the conductivity of the human body as a trigger signal to close a circuit. When a participant presses the central control touch button with one hand to form the circuit's base point, and touches different note keys with the other, a complete control circuit is formed. Each note key corresponds to a preset audio file and a set of lighting control commands (such as specific LED rings). Upon recognizing a valid touch combination, the system instantly triggers two actions: playing the corresponding melody and controlling the current to sequentially illuminate the corresponding light sources (LEDs inside the angel model and a specific ring on top). This technology, which programs and synchronizes multi-touch, sound triggering,
