A microphone based spirometer utilizing an INMP441I2S MEMs microphone, WS2812 indicator LED, and an ESP32 Wroom development board.
Version 1, not included in this git, was originally created for my masters thesis. I am currently updating it to be more efficient, as well as hook to my personal website due to wanting to utilize my website as an access point for additional functionality.
The main working principles are based on the work below.
Lung capacity estimation through acoustic signal of breath https://ieeexplore.ieee.org/abstract/document/6399655