Control external WLED from ESPHome

[muxa]

Describe the problem you have/What new integration you would like
I want to be able to control addressable LEDs connected to an external WLED, similar to how it's possible to have ESPHome node with WLED Effect controlled by an external WLED, only I want to reverse the control.

Please describe your use case for this integration and alternatives you've tried:
I'm working on a MIDI integration for ESPHome when MIDI notes light up an addressable LED strip. I want to extend it so that the lights don't have to be directly attached to the node to be controlled by MIDI.

Additional context
I know there are 2 types of network control for LEDs that ESPHome supports: WLED UDP and E1.31. Any tips on how to best approach the implementation of the reverse control will be appreciated.

[oxan]

I think the way to go about this is to implement a WLEDLightOutput that talks to a WLED node.

[muxa]

I might give it a go implementing WLEDLightOutput according to https://github.com/Aircoookie/WLED/wiki/UDP-Realtime-Control

[muxa]

I got it working: https://github.com/muxa/esphome-wled-output. It was surprisingly easy to implement.
The project that this functionality is needed in is still in progress, so I wont add this to ESPHome yet. I want to make sure things are working well first.

[nagyrobi]

Fell free to submit as PR.