Hey all,
I've seen a few insightful tutorials on how to make a spectrum analyzer using Adafruit's "Electret Microphone Amplifier - MAX4466 with Adjustable Gain", with varying displays ranging from an OLED breakout board to just a series of LED's. However I would like to see the actual resolution of both axes, for frequency of amplitude [dB], and am unable to find any tutorial which includes that feature. I'm hoping to collect some data from music festivals and thought this would be a useful way to do so, but if I cant see the actual resolution of the axes it will be a lot less helpful. Any resources or links would be appreciated!
Here is something similar, but without the resolution or axes labels: Arduino Spectrum Analyizer - YouTube