The 4 x 4 RGB LED Module WS2812B has built-in Full-Color Driving Lights Circular Development Board, and a round black shape. 16 super bright smart NeoPixels LED arranged in a 68mm outside diameter circular PCB.
These ring RGB lamps can be simply connected via the output pin cascade one to the other’s input pin (DI-DO).
In this way, by using only one single chip you will be able to control as many LED lights as possible, each LED lamp is integrated with a driver chip in it so that our LED becomes intelligent and addressable.
Each has a -18mA constant current drive, so the LED color will be very uniform, even if the voltage change is the same, do not need an external resistor current limiting resistor to make the overall design of the RGB lamp ring to become slim, as you see so simple and easy to use. With a 5V power supply to drive the RGB lamp ring.
Single wire communication, to maximize the reduction of I/O port pressure, and the use of the RGB WS2812B driver chip, so that the peripheral circuit requires only a single capacitor can meet the needs of the circuit, give people the enjoyment of beauty, in addition, this RGB ring, but also through a simple Dout input port, and the other using the same chip RGB lamp cascade, without need considering the shape of the limit.
1 x RGB LED Module WS2812B 4×4