fresh-home/esphome/common/bme680_advanced.yaml

# Example configuration entry
sensor:
  - platform: bme680
    temperature:
      name: "BME680 Temperature"
      oversampling: 16x
    pressure:
      name: "BME680 Pressure"
    humidity:
      id: "humidity"
      name: "BME680 Humidity"
    gas_resistance:
      id: "gas_resistance"
      name: "BME680 Gas Resistance"
    address: 0x77
    update_interval: 60s
  - platform: template
    name: "BME680 Indoor Air Quality"
    id: iaq
    icon: "mdi:gauge"
    # calculation: comp_gas = log(R_gas[ohm]) + 0.04 log(Ohm)/%rh * hum[%rh]
    lambda: |-
      return log(id(gas_resistance).state) + 0.04 *  id(humidity).state;
    state_class: "measurement"
text_sensor:
  - platform: template
    name: "BME680 IAQ Classification"
    icon: "mdi:checkbox-marked-circle-outline"
    lambda: |-
      if (int(id(iaq).state) <= 50) {
        return {"Excellent"};
      }
      else if (int(id(iaq).state) <= 100) {
        return {"Good"};
      }
      else if (int(id(iaq).state) <= 150) {
        return {"Lightly polluted"};
      }
      else if (int(id(iaq).state) <= 200) {
        return {"Moderately polluted"};
      }
      else if (int(id(iaq).state) <= 250) {
        return {"Heavily polluted"};
      }
      else if (int(id(iaq).state) <= 350) {
        return {"Severely polluted"};
      }
      else if (int(id(iaq).state) <= 500) {
        return {"Extremely polluted"};
      }
      else {
        return {"unknown"};
      }