I am doing a project of sound level meter using arduino. I have mounted all components and have done all connection as shown in figure but i am not getting the exactly correct output. I have tried alot to get output. The output is in range of 40 to 55 db but when i play sound it does not change . I…

How to get correct output of sound level meter in db

ieee488 April 2, 2018, 8:50pm 2

SSAN:
all connection as shown in figure

Nope. Nothing.