I am having a problem with a ws2811 led strip that is addressable every 3 leds.
The first pixel (the first 3 leds) work correctly. The rest of the pixels appear to be full white. it always happens that the first pixel works correctly, and all the following pixels fail, and if you cut this first pixel and connect the arduino to the second pixel, which will be now the new first pixel, the same happens; this new first pixel works correctly, and the rest of the led strip works.
As I found another ws2811 led strip that works ok, what I did was to use one pixel from the led strip that works correctly as the first pixel, and the rest of the les strip from the led strip that doesnt work correctly. The result: PROBLEM SOLVED.
My conclusion is then that there is a function that the first pixel of a led strips perform, and the rest do not.
My question is then: What is this function?