The NeoPixel LED strip requires a 5V power supply. The Portenta H7 provides 3.3V on SPI pins, which may not be sufficient for reliable operation. Use a level shifter or a separate 5V supply for the ...

The controller can drive an RGB LED strip which can be up to 25 meters long, using music as input. This can come from any device with a line level output (basically all PCs, mobile phones and Hi-Fi ...