Our footsteps

symmetric circuit
final result
cardboard prototype
tinkercad design
PCB circuit
photo collect all the above

Our project, “Our Footsteps”, aligns with Sustainable Development Goals 7 and 11 (Affordable and Clean Energy, and Sustainable Cities and Communities). Every day, thousands of people walk through city streets, and we asked ourselves: why not harness this kinetic energy for a beneficial purpose? From this idea, our project was born.

We utilize a piezoelectric circuit to convert mechanical energy from footsteps into electrical energy. The system initially generates approximately 45 volts, which we then step down to 12 volts using a transformer. Since the generated current is alternating (AC), we employed a bridge rectifier to convert it into direct current (DC), making it usable for most everyday electronic devices.

For the design process, we first created the initial prototype using Tinkercad. To test physical dimensions, we built a model with cardboard before moving to the fabrication phase. Finally, we selected artilon as the primary material for the real prototype due to its ability to withstand significant pressure.

Our solution demonstrates a sustainable approach to urban energy generation, turning ordinary human activity into a valuable source of clean electricity.