Help on spectrum analyzer port for esp32

HI again, i ported this

for smartMatrix by including neomatrix_config.h and made some changes to sketch. now display is just white not showing actual thing. i uploaded the code to github if anyone want to have a look on it.
BTW i am using smartmatrix_gfx by marcmerlin
any help will be highly appreciated.

A post was merged into an existing topic: Spectrum analyzer for esp32