This project aims to develop an affordable and efficient sound level meter using an Arduino microcontroller. The primary objective is to measure sound pressure levels in decibels (dB) and display the ...

Circuit Diagram: Circuit for this Arduino Sound Level Meter is a very simple in which we have used the LM386 Audio amplifier circuit to amplify the signals from a condenser microphone and supply it to ...

Lucía Garbo has created an Arduino powered noise pollution monitor, powered by an Arduino Mega micro-controller and housed in a 3D printed case. Other ...

Presented here is an Arduino-based sound/noise level ... A preset (VR1) is used to adjust the contrast of the LCD display. Arduino Uno. Arduino Uno R3 is based on ATmega328 ... use. After 9V battery ...

Arduino/ESP32 Sound Level Meter (SLM) using inexpensive, factory calibrated, digital I2S MEMS microphone and digital IIR filters (vs. FFT) for equalization and A-weighting. The basic idea is: And the ...

Measuring equipment such as SPL (Sound Pressure Level) decibel meters may seem daunting, but this article by [Shawon M. Shahryiar] shows that making your own need only have two essential ingredient… ...