I have made a 5 x 5 WS2812B RGB LED matrix to work with my raspberry pi. I'm trying to figure out how to run several tests from this tutorial: https://tutorials-raspberrypi.com/connect-control-raspberry-pi-ws2812-rgb-led-strips/
Here is how I connected it: GRND to pin 6(B&W cables) the 5v to pin 2 (R&GREY cables) din to pin 12(GPIO18 as references)(Y&B cables)
when I connect the 5v and the GRND to raspberry pi 3b+ they light up very bright (not running any code yet)
installing the rpi_ws281x library and running strandtest.py doesn't do anything to the less.it feels to me like the software isn't connecting to the LEDS since it only shines white without any software anyway.
anybody have any idea what could be wrong here?
some foto's for references:
When I connect GRND + 5V:
Thank you very much for your time,