Air quality index sensor

sensors.yaml

### sensors.yaml

## AIR QUALITY
- platform: waqi
  token: !secret waqi_key
  locations:
    - St Albans

## TEMPLATES
- platform: template
  sensors:
    air_quality:
      friendly_name: "Air Quality"
      entity_id: sensor.waqi_st_albans_new_zealand
      icon_template: >-
        {% if states('sensor.waqi_st_albans_new_zealand') | float > 150 %}
          mdi:cloud-alert
        {% else %}
          mdi:cloud
        {% endif %}
      value_template: >-
        {% if states('sensor.waqi_st_albans_new_zealand') | float < 51 %}
          Good
        {% elif states('sensor.waqi_st_albans_new_zealand') | float < 101 %}
          Moderate
        {% elif states('sensor.waqi_st_albans_new_zealand') | float < 151 %}
          Mildly Unhealthy 
        {% elif states('sensor.waqi_st_albans_new_zealand') | float < 201 %}
          Unhealthy
        {% elif states('sensor.waqi_st_albans_new_zealand') | float < 301 %}
          Very Unhealthy
        {% else %}
          Hazardous
        {% endif %}