Hi All. This might not be for everyone, and is very rough around the edges, but I have written a tool to more easily test how custom addressable RGB effects work.

Simply copy the code portion of the lamba into a text file, and then build and run, and it will output on your terminal how the effect will look.

It is very rough, you need a C compiler, and a RGB/TrueColor capable terminal.

If it works for you, let me know, if it doesn’t, also let me know.

https://github.com/cameroncros/ESPHome-ARGB-Tester