WS2815 connect to SP511E

Hi guys, I want to connect WS2815 Led to the SP511E. How should i do this.
Thanks for any reply.

I would start reading in Getting Started - WLED Project
Searching in this forum will probably point you at past examples too.

Once you’ve got something started, many of us will be happy to help you with specific questions.

The problem is that thete are to inputs. Data In and Backup In. I guess i should connect them together. It’ s not shown on the page Get Started.

The backup should be connected to ground.