# Piezoelectric Staircase for Sustainable Energy Generation
> Learn how piezoelectric elements in staircases can harvest energy from footsteps to power IoT devices and smart buildings through micro-harvesting.

Tags: piezoelectric, energy-harvesting, sustainable-energy, iot, smart-building, renewable-energy, engineering, circuit-design
## Piezoelectric Staircase System for Sustainable Energy Generation
- Research by Shreesha, Akshatha Rao L, et al., at Shri Madhwa Vadiraja Institute of Technology and Management.
- Focuses on micro-harvesting technologies for public infrastructure.

## Abstract & Introduction
- System uses an array of 25 piezoelectric elements to convert mechanical force from footsteps into electrical energy.
- Aim: Powering local lighting or street lights in high-traffic areas like railway stations to reduce grid reliance.

## System Architecture & Methodology
- **Mechanical Input:** Dual wooden plate mechanism with spring supports for uniform pressure.
- **Energy Generation:** 25 PZT-5 piezoelectric ceramic discs (25mm) in series-parallel configuration.
- **Power Conditioning:** Schottky diode bridge rectifier and 1000µF/50V capacitor filter.
- **Storage:** MT3608 DC-DC Boost Converter and TP4056 module charging a 3.7V Li-Ion battery.
- **Monitoring:** IoT integration using ESP32 and INA219 sensors.

## Results: Voltage Progression
- **Raw Output:** Peak AC voltage up to 40V-45V under 64kg weight.
- **Stabilized Output:** Approx 12V DC captured across the capacitor.
- **Regulated Output:** Steady 5V produced for safe battery charging.

## Conclusion & Future Work
- Prototype successfully demonstrated functional kinetic energy harvesting.
- Future focus on using supercapacitors to handle power surges and improving low current output.
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