The RMT peripheral of the ESP32 is used for controlling up to 8 LED "strands" (in whatever form factor the serially-chained LEDs are placed). These strands are independently controlled and buffered.

Abstract: This paper proposes a retinex theory-based approach to RGB-to-RGBW conversion that preserves the human color perception within a pre-determined level of color distortion for RGBW displays.

Abstract: In the latest large-screen TVs, an RGBW color domain is widely used to enhance the brightness of liquid crystal display (LCD) panels. As the correlations among RGBW color components are ...

Dermatologists explain the science behind wildly popular treatments like red light therapy, which is now available at home—for a steep price. Full-face LED masks like this one can cost up to several ...