ESP rotary dimmer

ESPHome
1

I’m trying to make a dimmer with an esp and a rotary encoder.
Does anyone give me an hint.
I have a Rotary Encoder

sensor:
  - platform: rotary_encoder
    name: "Rotary Encoder"
    pin_a: D1
    pin_b: D2
    min_value: 0
    max_value: 100
    resolution: 2

and

light:
  - platform: monochromatic
    name: "Ceiling light"
    output: output_component1
output:
  - platform: esp8266_pwm
    id: output_component1
    pin: D6

Invidually is this working but I want to dim the lights with the rotary-encoder but how must I program this in the ESP?

2
3

I don’t understand the lambda language, is there anywhere an explanation of it?

4

It is c++ - look at the custom component pages on esphome.io

5

I am a little further with the dimmer .
If I turn the rotary encoder , the led dim.
The only thing whet’s not work is the following:
The slider in HA did not correspond with the rotary encoder.
what I’m doing wrong?

sensor:
  - platform: rotary_encoder
    name: "Rotary Encoder"
    pin_a: D1
    pin_b: D2
    min_value: 0
    max_value: 52
    resolution: 4
    filters:
      - or:
        - debounce: 0.1s
        - delta: 10
      - lambda: |-
          if (x < 0.0) return 0.0;
          if (x > 52.0) return 52.0;
          return x;
    on_value:
      then:
        - output.set_level:
            id: pwm_output
            level: !lambda "return x/53.0;"
        - logger.log:
            format: "pwm_output set to %.1f%s"
            args: [ 'x*100/53.0', '"%"' ]

light:
  - platform: monochromatic
    output: pwm_output
    name: "LED-Lamp"
    
output:
  - platform: esp8266_pwm
    pin: D6
    inverted: true
    frequency: 1000 Hz
    id: pwm_output