2x2 RGB LED matrica su valdikliu WS2812

CJMCU-WS2812B4 Is a set of control circuit and light-emitting circuit in one of the intelligent external controlled light source. Its each 5050 LED element is a pixel. The pixel contains the intelligent digital interface data latch and amplification drive circuits, also includes a high-precision internal oscillator and 12V high-voltage programmable constant current control regulator, effectively ensuring that the pixel light color is highly consistent. Data protocol is simple and implemented in Arduino libraries to be used with single-line code. Each pixel is addressed sequentially, so each of them can have different color.