Splitting Digital RGB Signal Line to multiple LED strips
Two simple methods. The inputs are typical high-impedence signal inputs, so its not hard to drive multiple from one gpio output.


Just split your output at the first led.
Use one led as a buffer, and split it at that point. Adjust by 1 for your strip.








simulate this circuit &ndash; Schematic created using CircuitLab

Try to keep the cable length between your output and the led DIN as short as possible to prevent any sync issues.