Originally Posted by: AEKM89 
Hey
I think you guys may know how to help me. :)
I bought an ESP8266 on NodeMcu Board and an WS2812 4x4 Led Matrix. I want to build a simple rev-light for start. I know how to set up the LEDs but I don't know how to use the UDP stream to set LED colors. Is there a simple way to read the UDP data using Ardruino IDE, or does anyone know a sketch already existing to do that? I guess my biggest proplem is to understand how i can split the data stream into the necessary parts für getting rpm. Any ideas to do it as simple as possible, because it would be a cheap option for many "hobby drivers"??
Thanks Aekm89
there are a couple of open source projects in github etc that show the data being extracted (in various languages).
it's a byte array so you can extract any or all based on the index.