ESP32 Footstep Power Generator Science Project

ESP32 Piezo Footstep Energy Harvesting Project Kit This ESP32-based footstep power generation project demonstrates how mechanical pressure can be converted into usable electrical energy using piezo sensors. Designed for science fairs and university final year submissions, the system detects footsteps, stores generated energy in Li-Ion batteries, and displays real-time status through an LCD and LED indicator. Specifications Main controller: ESP32 WiFi and Bluetooth Development Board (CP2102) Footstep sensing: 3 pcs 35mm prewired piezo disc sensors Energy storage: 2 pcs 18650 rechargeable 3.7V Li-Ion batteries Battery holder: 2-chamber 18650 battery holder case Power regulation: LM2596 DC step-down buck converter (5V output) Power control: 6-pin DPDT slide switch (50V 0.5A) Display: 16x2 LCD with I2C adapter module Output indicator: 5mm green LED (pressure-dependent glow time) Noise filtering: 3 pcs 10k resistors for piezo signal bypass Prototyping: 400-point solderless breadboard Structure: 5mm PVC plastic board frame