Pedal-Powered Light : Using Piezoelectric Discs to Illuminate an LED on a Bicycle
Applied Technology
Kimberly Aguilar
- Grade:
- 7
- Teacher:
- GLENN OCANA
This project investigated whether piezoelectric discs can be used to generate electrical energy from pedaling to illuminate an LED on a bicycle. A pedal-powered system was designed in which mechanical vibrations produced by pedaling were converted into electrical energy using piezoelectric discs. The voltage generated by the piezoelectric discs was measured under different pedaling conditions. Results showed that sufficient voltage was produced to power an LED, demonstrating a functional pedal-powered lighting system. This study highlights a renewable and efficient method for improving bicycle safety while promoting sustainable energy use.
Your pedal-powered light project is an impressive demonstration of real engineering thinking, as you grounded your work in solid background research on piezoelectric energy conversion, designed a clear experimental method with controlled variables and measurable voltage data, carefully constructed and tested a functional circuit with diodes and a capacitor, creatively applied sustainable energy concepts to a practical bicycle safety solution, and presented your findings with clear visuals, organized data tables, and thoughtful analysis that reflect both technical skill and a strong commitment to innovation.