NoiseMeter: Difference between revisions
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| Line 40: | Line 40: | ||
| DOUT || 4 (D4) - I2S SD || data | | DOUT || 4 (D4) - I2S SD || data | ||
|- | |- | ||
| BCLK || 17 - I2S SCK || bit clock | | BCLK || 17 (A3) - I2S SCK || bit clock | ||
|- | |- | ||
| GND || GND || | | GND || GND || | ||
Revision as of 12:06, 28 July 2023
| Project NoiseMeter | |
|---|---|
| File:NoiseMeter.jpg | |
| Measuring audio noise as citizen science | |
| Status | Initializing |
| Contact | bertrik |
| Last Update | 2023-07-28 |
Introduction
This project is about measuring environmental audio noise as citizen science.
For example, noise can be:
- road traffic noise (cars, mopeds, etc)
- air traffic noise,
- industrial noise, like building activities
Existing sound/noise meter projects:
- LoRa sound kit by Marcel Meek
- DNMS project by Helmut Bitter
- Unknown sensor tested by RIVM in Schiedam (mentioned on https://www.samenmetenaanluchtkwaliteit.nl/nieuws/citizen-science-geluidmetertest-op-rivm-terrein )
- Sound meter by Bart Jurgens uit Amerongen, link ???
- Sound meter from Amsterdam Sounds project , Waag Society, https://gitlab.waag.org/lodewijk/amsterdam-sounds-kit
This project is about a kind of clone of the Amsterdam Sounds project.
Hardware
Hardware is a nano33 iot board.
| SPH0645 | nano33 iot | Remark |
|---|---|---|
| SEL | - | leave unconnected |
| LRCK | 16 (A2) - I2S FS | sample clock |
| DOUT | 4 (D4) - I2S SD | data |
| BCLK | 17 (A3) - I2S SCK | bit clock |
| GND | GND | |
| 3V | 3v3 |
Software
The software is based on arduino, built using platformio.