ESPHome Yaml for the Ruach Air Quality Sensor

Ruach.yaml

esphome:
  name: "ruach-living-room"

esp32:
  board: adafruit_qtpy_esp32s2
  framework:
    type: arduino

globals:
  - id: iaq_index
    type: int
    restore_value: no
    initial_value: '0'

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: ""

ota:
  password: ""

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Ruach-living-room Diag Hotspot"
    password: !secret wifi_password

captive_portal:

i2c:
  - id: stemma
    sda: 41
    scl: 40
    scan: true

sensor:
  - platform: sgp30
    eco2:
      id: eco2_monitor
      name: "Living Room eCO2"
      accuracy_decimals: 1
    tvoc:
      id: tvoc_monitor
      name: "Living Room TVOC"
      accuracy_decimals: 1
    store_baseline: yes
    address: 0x58
    update_interval: 1s
    compensation:
      temperature_source: temperature_monitor
      humidity_source: humidity_monitor
  - platform: bme680
    temperature:
      filters:
        offset: -7
      name: "Living Room Temperature"
      id: temperature_monitor
      oversampling: 16x
    pressure:
      name: "Living Room Air Pressure"
    humidity:
      id: humidity_monitor
      name: "Living Room Humidity"
    gas_resistance:
      id: gas_resistance_monitor
      name: "Living Room Gas Resistance"
    address: 0x77
    update_interval: 1s

text_sensor:  
  - platform: template
    name: "Living Room IAQ"
    icon: "mdi:air-filter"
    lambda: |-
      id(iaq_index) = 0;
      
      if (id(humidity_monitor).state < 10 or id(humidity_monitor).state > 90) {
        id(iaq_index) += 1;
      }
      if (id(humidity_monitor).state < 20 or id(humidity_monitor).state > 80) {
        id(iaq_index) += 2;
      }
      if (id(humidity_monitor).state < 30 or id(humidity_monitor).state > 70) {
        id(iaq_index) += 3;
      }
      if (id(humidity_monitor).state < 40 or id(humidity_monitor).state > 60) {
        id(iaq_index) += 4;
      }
      if (id(humidity_monitor).state >= 40 and id(humidity_monitor).state <= 60) {
        id(iaq_index) += 5;
      }

      if (id(eco2_monitor).state <= 600) {
        id(iaq_index) += 5;
      }
      if (id(eco2_monitor).state <= 800) {
        id(iaq_index) += 4;
      }
      if (id(eco2_monitor).state <= 1000) {
        id(iaq_index) += 3;
      }
      if (id(eco2_monitor).state <= 1500) {
        id(iaq_index) += 2;
      }
      if (id(eco2_monitor).state > 2000) {
        id(iaq_index) += 1;
      }
      
      if (id(tvoc_monitor).state <= 65) {
        id(iaq_index) += 5;
      } if (id(tvoc_monitor).state <= 220) {
        id(iaq_index) += 4;
      } if (id(tvoc_monitor).state <= 660) {
        id(iaq_index) += 3;
      } if (id(tvoc_monitor).state <= 1000) {
        id(iaq_index) += 2;
      } if (id(tvoc_monitor).state <= 2000) {
        id(iaq_index) += 1;
      }

      if(id(gas_resistance_monitor).state <= 50000) {
        id(iaq_index) += 5;
      }
      if(id(gas_resistance_monitor).state <= 40000) {
        id(iaq_index) += 4;
      }
      if(id(gas_resistance_monitor).state <= 30000) {
        id(iaq_index) += 3;
      }
      if(id(gas_resistance_monitor).state <= 20000) {
        id(iaq_index) += 2;
      }
      if(id(gas_resistance_monitor).state <= 10000) {
        id(iaq_index) += 1;
      }
      if(id(gas_resistance_monitor).state = 0) {
        id(iaq_index) += 0;
      }

      if (id(iaq_index) <= 7) {
        return {"Toxic"};
      }
      else if (id(iaq_index) <= 10) {
        return {"Poor"};
      }
      else if (id(iaq_index) <= 13) {
        return {"Moderate"};
      }
      else if (id(iaq_index) <= 15) {
        return {"Good"};
      }
      else if (id(iaq_index) > 15) {
        return {"Excellent"};
      }