Pizeoelectric Energy Harvesting - From Footsteps to Power

The Project

My project is called Piezoelectric Energy Harvesting – From Footsteps to Power. I designed a system that converts mechanical energy from human footsteps into electrical energy using piezoelectric sensors. When pressure is applied to the sensors, they generate small voltage pulses, which are then converted, stored, and processed using an Arduino system. The Arduino counts each pulse as a footstep and displays the total on an LCD screen. This project demonstrates how renewable energy can be harvested from everyday human movement and shows potential applications in smart cities, transport hubs, and low-power electronic systems. I was inspired to create this project by the idea of turning everyday human activity into useful energy. I became interested in how crowded places like train stations, airports, and shopping centres constantly experience footsteps, and I wanted to explore how that wasted mechanical energy could be converted into electricity in a practical way. Learning about piezoelectric materials in physics also motivated me, especially the fact that simple pressure can generate an electrical signal. In terms of difficulty, the project had a mix of challenges and learning opportunities. The most difficult part was getting consistent voltage output from the piezoelectric sensors and making sure the signal was stable enough for the Arduino to detect. It also took some trial and error to design the circuit so the rectifier, capacitor, and microcontroller worked properly together. However, once I understood how each component interacted, the system became much easier to refine and improve.

View this project on YouTube