NoiseMeter: Difference between revisions

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[[File:nano33iot_pinout.png|thumb|right|250px|Nano33 IOT pinout]]
[[File:nano33iot_pinout.png|thumb|right|250px|Nano33 IOT pinout]]


Hardware is a nano33 iot board.
Hardware is a [https://docs.arduino.cc/hardware/nano-33-iot| Nano 33 IoT] board.


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[[Category:Project]]
[[Category:Arduino]]
[[Catgeory:Arduino Nano 33 IoT]]


== Software ==
== Software ==

Revision as of 08:47, 12 October 2023

Project NoiseMeter
File:NoiseMeter.jpg
Measuring audio noise as citizen science
Status Initializing
Contact bertrik
Last Update 2023-10-12

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:

This project is about a kind of clone of the Amsterdam Sounds project.

hardware

Nano33 IOT

Nano33 IOT pinout

Hardware is a Nano 33 IoT board.

Connections
SPH0645 nano33 iot Remark
SEL - leave unconnected
LRCK A2 (16) - I2S FS sample clock
DOUT D4 (4) - I2S SD data
BCLK A3 (17) - I2S SCK bit clock
GND GND
3V 3v3

Catgeory:Arduino Nano 33 IoT

Software

The software is based on arduino, built using platformio.

Casing

I'm looking into several options:

Junction box

Simple junction boxes sold by Gamma:

A downward pointing hole can be used for an 868 MHz LoRaWAN antenna.

Sensor.community casing

See https://sensor.community/docs/dnms/dnms-noise-measuring-dn40-result.jpg

Dimensions:

  • microphone is on a half inch (12.7 mm OD) white polystyrene pipe, 115 mm long
  • main piece is 25mm, length 160mm
  • some other connecting piecess

"RIVM" test casing

Exact dimensions unknown, see photo on this page: https://samenmeten.nl/nieuws/citizen-science-geluidmetertest-op-rivm-terrein

My guess:

  • microphone is on a 10mm diameter pipe, length 100mm
  • main case is a 40mm diameter pipe, length 200mm