enclosed_sensor.yaml

substitutions:
  temp_offset: "0" #change this with a negative number



sensor:
  - platform: absolute_humidity
    name: Absolute Humidity
    temperature: current_temp
    humidity: humidity
    

  - platform: absolute_humidity
    name: Absolute Humidity Reference
    temperature: temp_not_offsetted
    humidity: humidity_uncalibrated
    
  - platform: template
    name: "AHT20 Humidity"
    id: humidity
    update_interval: 1s
    lambda: |-
     // https://www.omnicalculator.com/physics/relative-humidity
      return(100 * exp((17.625 * id(dew_point).state) / (243.04 + id(dew_point).state)) / exp((17.625 * id(current_temp).state) / (243.04 + id(current_temp).state)));
    unit_of_measurement: '%'
    device_class: humidity
    icon: 'mdi:thermometer-alert'


  - platform: template
    name: "Dew Point"
    id: dew_point
    update_interval: 1s
    lambda: |-
      // https://esphome.io/cookbook/bme280_environment.html

      return (243.5*(log(id(humidity_uncalibrated).state/100)+((17.67*id(temp_not_offsetted).state)/
      (243.5+id(temp_not_offsetted).state)))/(17.67-log(id(humidity_uncalibrated).state/100)-
      ((17.67*id(temp_not_offsetted).state)/(243.5+id(temp_not_offsetted).state))));
    unit_of_measurement: °C
    icon: 'mdi:thermometer-alert'
    
  - platform: template
    id: current_temp
    name: AHT20 Temperature
    accuracy_decimals: 2
    unit_of_measurement: "°C"
    device_class: temperature
    update_interval: 1s
    lambda: |-
      return id(temp_not_offsetted).state;
    filters:
        - offset: ${temp_offset} 
 

    #both internal 
  - platform: aht10
    temperature:
      accuracy_decimals: 1
      id: temp_not_offsetted
    humidity:
      id: humidity_uncalibrated
    update_interval: 5s