Last Updated or created 2024-01-31

Config for mqtt-433 and home assistant entities.
Maybe I’ll add a display to select which dimmer to change.

ESPHome Config for direct communication to a MQTT enabled 443mhz dimmer.

When using GND to the rotary you have to use a pullup entry in your yaml

esphome:
  name: rotarywhite
  friendly_name: RotaryWhite

esp8266:
  board: esp01_1m

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx="

ota:
  password: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Rotarywhite Fallback Hotspot"
    password: "xxxxxxxxxxxxxxxxxxx"

captive_portal:
    
sensor:
  - platform: rotary_encoder
    name: "WhiteRotaryEncoder"
    id: rotvalue
    min_value: 0
    max_value: 50
    resolution: 1
    pin_a:
      number: GPIO0
      inverted: true
      mode:
        input: true
        pullup: true
    pin_b:
      number: GPIO2
      inverted: true
      mode:
        input: true
        pullup: true
    on_value:    
      - mqtt.publish:
          topic: "ha433/Living5Spots/brightcontrol"
          payload: !lambda |-
              return to_string(id(rotvalue).state);
mqtt:
  discovery: false
  broker: 192.168.1.1
  port: 1883
  discovery_prefix: homeassistant

Config part to change Home Assistant entities.
WARNING YOU HAVE TO CHANGE RIGHTS!

Settings > Addons > EspHome > Configuration
(press configure to change service calls)

sensor:
  - platform: rotary_encoder
    name: "WhiteRotaryEncoder"
    id: rotvalue
    min_value: 0
    max_value: 50
    resolution: 1
    pin_a:
      number: GPIO0
      inverted: true
      mode:
        input: true
        pullup: true
    pin_b:
      number: GPIO2
      inverted: true
      mode:
        input: true
        pullup: true
    on_value:    
      - homeassistant.service:
          service: light.turn_on
          data_template:
                entity_id: light.bedroomdimmer  
                brightness: "{{ brightness_1 | int }}"    
          variables:
              brightness_1: !lambda 'return id(rotvalue).state * 4;'