CHAPTER 5

Piezo Array

EXPERIMENT 5.1

Circuit: Stabilized the physical circuit to handle multiple Piezo sensors simultaneously. Organized wiring to prevent signal interference.

Expansion: Expanded to 5 simultaneous sensors to capture distinct drum areas (center, rim, sides).

Code & Challenges: The challenge was reading 5 analog signals at high speed. Refined code to identify which sensor was hit in milliseconds. A major issue was the fragility of Piezo cables, requiring careful securing.

5 Sensor Array

EXPERIMENT 5.2

Design: Exploring surface textures. 3D modeled patterns (ridges, organic waves) to create tactile zones. Created 5 prototypes to test feedback variety.

Function: Dragging a finger across ridges creates continuous vibration, triggering sustained visual effects rather than single impacts.

Sensor Integration: Designed a specific slot underneath for the Piezo to fit tight against the surface, ensuring clear vibration pickup.