11:25 am June 17, 2020 By Julian Horsey Lucía Garbo has created an Arduino powered noise pollution monitor, powered by an Arduino Mega micro-controller and housed in a 3D printed case.

With the Smart Noise Detection System, this vision becomes a reality. Powered by a combination of ESP32 and Arduino Nano BLE Sense, linked via serial communication.

Calibrating the system using a bowl of clean water. There is no single parameter that determines the quality of a water sample, so the pollution monitor has no less than five different sensors.

At I/O, Google Will Be Tracking Things Like Noise Level And Air Quality With Hundreds Of Arduino-Based Sensors Drew Olanoff 11:56 AM PDT · May 13, 2013 ...

The local government, that is. Using more than a dozen sound monitoring devices installed throughout Portland, the city has begun gathering data that it will use to review local noise regulations.