Hello,
I’m using Homeassistant for a few years now, but as I just finished my first photovoltaic install, im trying to take more of a deep dive into all the possibilities.
What I’m trying to accomplish:
I have a ESP32 board connected to some WS2812b addressable LEDS, and I want them to change color relative to a value coming from home assistant. If my solar produces a lot of energy, I would like all the LEDS to light up, if the sun isn’t shining as much (or I’m using a lot of the power myself), I want fewer LEDs to light up.
Where I’m at:
I have my ESP32 integrated into HA as a ESPHome integration. I connected the LEDs and configured them via the neopixelbus. I can manually turn them on and do all the things a light.thing can do.
How to go from here?
I think I have to go the “lambda” route, import the numeric value from HA as a sensor and then I have no idea really. Would be so happy if someone could help me out or put me in the right direction 
Thanks in Advance