noisesensor

A low cost DIY sound pressure level sensor for enabling environmental noise awareness. https://lukasschwarz.org/noise-sensor

Lukas ac60943b62 Add Arduino and ESP32 code		vor 3 Jahren
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README.md	Merge branch 'master' of https://git.lukasschwarz.org/lukas/noisesensor	vor 3 Jahren
case.jpg	Initial commit	vor 3 Jahren
thesis.pdf	Initial commit	vor 3 Jahren

README.md

A low cost DIY sound pressure level sensor for use by laymen; the result of my master’s thesis. It allows integration into the existing senseBox framework but can also function on its own. It’s merely a prototype and there obviously is room for improvement.

Uses a STM32G071 (ARM Cortex-M0+)
Uses a Knowles I²S MEMS microphone
Uses a RFM95 LoRa module (not in WAN mode)

Green printed circuit board inside a propped up white 3D printed case.

This repository includes

STL files for the case
Schematic and PCB layout files
STM32 code for the G071 microcontroller
An Arduino library to be used with the senseBox MCU
An ESP32 library to be used as an alternative to the senseBox MCU

Link to the more detailed article