now ws2813 is coming,let discuss the difference between ws2812b and ws2813.
ws2813 is ws2812 updated version,
WS2813 Feature:
The control circuit and the LED share the only power source.
The control circuit and RGB chip are integrated in a 5050 components, to form an external control pixel.
Using the built-in signal reshaping circuit to achieve the signal waveform shaping, and no distortion of waveform of signal takes place.
Built-in power-on reset and brown-out reset circuits.
The gray levels of each pixel are of 256 levels, which achieves “256*256*256=16777216” full-color display, and the refresh frequency reaches to 2KHz/s
Serial cascade interface, data receiving and decoding depend on just one signal line.
Dual-signal wires version, signal break-point continuous transmission
Any two point the distance more than 3m transmission signal without any increase circuit.
When the refresh rate is 30fps, cascade numbers are far more than 1024 points.
Data transmitting at speeds of up to 800Kbps.
Good color consistency reliability, high cost-effective.
The ws2813 led datesheet is http://www.normandled.com/upload/201605/WS2813%20LED%20Datasheet.pdf