control pixel strip WS2812B with RPI PICO 2040 mounted in the form of a matrix in the size of 20 rows of 12 columns total size 240 LEDs, total length 4 meters. power supply + 5V / 5A, with reduced brightness of 200 units out of a total of 255.

link in the tube >>> https://www.youtube.com/watch?v=klnJXfNlOXk