[Home Assistant] Persistent Input Slider Example

# For this to work properly, your MQTT broker must be setup to handle persistence

sensor:
  - platform: mqtt
    state_topic: home-assistant/nightlight_brightness
    name: Nightlight Brightness

input_slider:
  nightlight_brightness:
    name: Nightlight Brightness
    initial: 64
    min: 0
    max: 255
    step: 1

automation:
  - alias: Update Nightlight Brightness Sensor
    trigger:
      - platform: state
        entity_id: input_slider.nightlight_brightness
    condition:
      - condition: template
        value_template: "{{ not is_state('sensor.nightlight_brightness', states('input_slider.nightlight_brightness')) }}"
    action:
      service: mqtt.publish
      data_template:
        topic: home-assistant/nightlight_brightness
        payload: "{{ states('input_slider.nightlight_brightness') }}"
        retain: true

  - alias: Update Nightlight Brightness Input Slider
    trigger:
      - platform: state
        entity_id: sensor.nightlight_brightness
      - platform: event
        event_type: homeassistant_start
    condition:
      - condition: template
        value_template: "{{ not is_state('sensor.nightlight_brightness', states('input_slider.nightlight_brightness')) }}"
    action:
      service: input_slider.select_value
      entity_id: input_slider.nightlight_brightness
      data_template:
        value: "{{ states('sensor.nightlight_brightness')|int }}"