WS2812B is a intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. It internal include intelligent digital port data latch and signal reshaping amplification drive circuit.
Schematics. In this example, the WS2812B LED strip will be powered using the 5V Arduino pin. In my case, I’m controlling 14 LEDs. If you want to control many LEDs, you’ll need to use an external power source. Useful tips: Connect a capacitor with a capacitance between 100uF and 1000uF from power to ground to smooth out the power supply.