On Raspbery Pi 4b modified code to flicker in a loop for default (red) color. Most of the times color goes from red to turned off, but sometimes all leds shine white color for some cicles and then go back (or don't) to flickering between red and none.
Code runs a loop 1000 times with 10ms sleep, each time either setting default color (red) or turning off (0 value).
Color instability demo
On Raspbery Pi 4b modified code to flicker in a loop for default (red) color. Most of the times color goes from red to turned off, but sometimes all leds shine white color for some cicles and then go back (or don't) to flickering between red and none.
Code runs a loop 1000 times with 10ms sleep, each time either setting default color (red) or turning off (0 value).
https://user-images.githubusercontent.com/594470/234815505-7c77be63-03a9-4016-aca1-a3e88367b4fc.mp4