Hi! On Wed, Nov 30, 2022 at 4:33 PM Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> wrote: > >> What controls the intensity? Don't you have PWM there? > > > > WS2812 is a RGB led, which contains a small Microcontroller. The µC > > takes 24 byte intensity data from a serial input and then passes on > > any following bits to the next LED. SPI clk and chip-select are > > ignored (chip-select support can be trivially added though). > > > > You can find them everywhere nowadays, since they are quite cheap > > (a few cents per LED) and need only one MOSI pin to control hundreds > > of LEDs. > > OK. This should be anyway existing property, so default-brightness. default-intensity is a different property. Intensity controls only the color for a multicolor led. The final brightness is calculated with this intensity value with the single brightness value of the current LED. (See my previous mail.) -- Regards, Chuanhong Guo