ws2813 led is ws2812 updated version,it has dual-signal wires version , 
signal break-point continuous transmission,i want to control it by 
arduino ,who have the code for it?thanks.
ws2813 led datasheet is 
http://www.normandled.com/upload/201605/WS2813%20LED%20Datasheet.pdf

There is suppose for it in https://github.com/cpldcpu/light_ws2812

Looking at the notes, any WS2812 implementation could control a WS2813 
with minor modifications (longer reset pulse)