Keyestudio ESP32 - 7. Code Explanation; Project 22: Noise Meter; 1. Description; 2. Wiring Diagram

ESP32 Starter Kit
7. Code Explanation
Read the value of sound by setting the related pin.
9.2.25 Project 22: Noise Meter
1. Description
Arduino noise meter embodies the sound signal to a series of dots, which are converted into patterns displayed on dot
matrix.
2. Wiring Diagram
9.2. Scratch Project 285