Music visualizer Idea and execution by UsatiyNyan

https://github.com/UsatiyNyan/ledmusicreworkembedded

https://www.youtube.com/watch?v=wxvgvQ8Cv6c

https://www.youtube.com/watch?v=zalfF9knbv4

App is written with Qt version 5.13.2 (you might need to install Qt5::SerialPort additionally). PulseAudio sound server is used to read from soundcard(it might be already installed on your computer). Choose sound card which has .monitor in it's name)

1. polygons are not working for now (expansion is not working properly)
2. changing size of LED matrix through desktop causes SEGFAULT;) (feel free to change defaults in code which is pretty self explanatory)
3. might crash if you choose wrong audio source
4. with dark theme checkbox on the left side of enable preview becomes invisible

ZERO step - install qt5

sudo apt-get install qt5-default

first give access to whatever device you will be using as embedded

sudo chmod 666 /dev/ttyUSB0

then install additional libs

sudo apt-get install libpulse-dev libqt5serialport5-dev

then update submodules

git submodule update --init

git submodule update --init
mkdir build
cd build
cmake ..
make

or just build target led_player

in your build directory

cd build
cd project
./led_player

and then play with it! don't forget about invisible checkbox on the left side of enable preview in the bottom right corner