There are a couple of ways to control WS2812B and its clones. Among them, the method that uses SPI bus via DMA would be the easiest choice for the following reasons; Firstly SPI bus is ubiquitous. It is not easy to find a MCU that is not equipped with one. Secondly DMA minimizes the burden of the processor and handles timing with hardware. No code is involved in transferring data. Thus once proper SPI clock is chosen, operation is quite reliable as well. Only downside is that you have to dedicate one SPI port for the control of the LED, since you cannot share this line with any other SPI devices. The timing of SK6812 is shown below. There are slight variations in the actual timing between devices. But basically all use the same high/low ratio, namely 1:3 for logic zero and 2:2 for logic one. Thus set the SPI clock frequency to somewhere between 2.8hMHz and 4MHz, and use nibble (0x8) for logic zero, (0xc) for logic one. Then all should be good. Actually there are a few things t...