Home Assistant Sonoff iFan03 Setup

##########################
### configuration.yaml ###
##########################

input_number:
  fan_speed:
    name: Fan Speed
    icon: mdi:fan
    initial: 2
    min: 1
    max: 3
    step: 1

sensor:
  - platform: template
    sensors:
      fan_speed:
        friendly_name: "Fan Speed"
        value_template: >
            {% if states.input_number.fan_speed.state == "1.0" %}low
            {% elif states.input_number.fan_speed.state == "2.0" %}medium
            {% elif states.input_number.fan_speed.state == "3.0" %}high
            {% endif %}
        icon_template: mdi:fan

#######################
### automation.yaml ###
#######################

- id: '00'
  alias: Fan Speed
  description: ''
  trigger:
  - platform: template
    value_template: '{{states.sensor.fan_speed.state == "low"}}'
  - platform: template
    value_template: '{{states.sensor.fan_speed.state == "medium"}}'
  - platform: template
    value_template: '{{states.sensor.fan_speed.state == "high"}}'
  condition: []
  action:
  - service: fan.set_speed
    data:
      entity_id: fan.sonoff_0000xxxxxx
      speed: '{{ trigger.to_state.state }}'
  mode: single

###########################
### lovelace: dashboard ###
###########################

type: entities
entities:
  - entity: fan.sonoff_0000xxxxxx
  - entity: input_number.fan_speed
  - entity: sensor.fan_speed
title: Fan Control
show_header_toggle: false