Course:VANT149/2025/Capstone/Science/Team9

Put Project Title Here

Exploring Sound Accuracy with Arduino and Piezo Buzzers

Abstract

Our project investigated the accuracy with which an Arduino Uno and a piezo buzzer can reproduce standard musical notes by programming specific frequencies using the tone() function. We tested 12 notes (C4 to G5) and compared the generated sounds to frequencies using a tuner app. Each note required minor adjustments over five trials to match the expected pitch, showing that while the system is not perfectly accurate on the first try, it is reliable for basic sound reproduction. The experiment highlighted limitations due to integer-only frequency settings and the physical properties of the buzzer.

Biographies

Person 1

Seiya Katagiri is a first-year student in the Vantage One Science program at the University of British Columbia. His research focuses on how the frequency of digital signals sent from a microcontroller affects the sound produced by piezoelectric buzzers. He is personally interested in this topic because of his curiosity about how sound and technology connect in everyday electronics.

Person 2

Sitong Gong is a first-year student enrolled in the Vantage One Science program at the University of British Columbia. His project explores the relationship between the frequency of digital outputs from a microcontroller and the resulting tones produced by piezoelectric buzzers. He became interested in this area through a personal fascination with the role of sound in electronic devices and how simple code can influence the audio we hear in everyday technology.