I was watching several of your videos, which i quite like, but was watching the video called “How to add software-controlled LEDs to your 3D printer!” (this one: https://www.youtube.com/watch?v=fb3hrjEiE3s ), and really liked the idea of controlling the LEDs with GCODE.
I happened to have a couple of strips of RGB LEDs in my parts box so thought i’d give it a go.
Got them all wired up nicely, no dramas, but could only get the first LED to light up. And i couldnt control the brightness or colour, even though i was definitely using a spare PWM capable pin, and had the right pin number.
So i watched again a bit more carefully, and realised theres a rather important detail you left out of the video.
This does not work with addressable LED strips, only strips with separate inputs for each of the RGB colours.
Its an important difference to note as most of the strip options on Aliexpress that you linked to, are the addressable kind and could catch a lot of people out.
Just a detail i think should have been pointed out in the video.