Arduino Audio spectrum analyser
ORIGINAL CODE: https://create.arduino.cc/projecthub/mircemk/diy-fft-audio-spectrum-analyzer-ca2926
You need: 1x Arduino(i use arduino Uno) 1x 128x64 GLCD(i use KS0108) 1x Female audio jack
Connecting:
Display
Pins
1 - GND
2 - 5V+
3 -
4 - A4
5 - A3
6 - A5
7 - D4
8 - D5
9 - D6
10 - D7
11 - D8
12 - D9
13 - D10
14 - D11
15 - A1
16 - A2
17 -
18 -
19 - 5V+
20 - GND
Audio jack
GND - GND
L - A0
R - A0
If you use STD display you might use some other wiring because that type of display use SPI.