ESPHome configuration for Vindriktning ESP32 kit https://www.laskakit.cz/laskakit-esp-vindriktning-esp-32-i2c/

air-quality.yaml

substitutions:
  device_name: air-quality
  wifi_ssid: !secret wifi_ssid
  wifi_password: !secret wifi_password
  api_password: !secret api_password
  ota_password: !secret ota_password

esphome:
  name: ${device_name}
  comment: IKEA LaskaKit ESP-VINDRIKTNING ESP-32 I2C

esp32:
  board: nodemcu-32s
  framework:
    type: arduino

wifi:
  ssid: ${wifi_ssid}
  password: ${wifi_password}
api:
  password: ${api_password}
ota:
  password: ${ota_password}

logger:

uart:
  rx_pin: 16
  tx_pin: 17
  baud_rate: 9600
  id: uart2

sensor:
  - platform: pm1006
    pm_2_5:
      name: "Particulate Matter 2.5µm Concentration"
      id: pm
      accuracy_decimals: 1
      on_value:
        then:
        - if:
            condition:
              lambda: 'return x < 30;'
            then:
              - light.addressable_set:
                  id: status
                  range_from: 0
                  range_to: 0
                  red: 0.0
                  green: 1.0
                  blue: 0.0
                  color_brightness:  !lambda |-
                    return id(sun_elevation).state > 0 ? 1.0 : 0.5;
            else:
            - if:
                condition:
                  lambda: 'return x > 90;'
                then:
                - light.addressable_set:
                    id: status
                    range_from: 0
                    range_to: 0
                    red: 1.0
                    green: 0.0
                    blue: 0.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
                else:
                - light.addressable_set:
                    id: status
                    range_from: 0
                    range_to: 0
                    red: 1.0
                    green: 0.72
                    blue: 0.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
    uart_id: uart2
    update_interval: 20s
  - platform: scd4x
    co2:
      name: "CO2"
      id: co2
      on_value:
        then:
        - if:
            condition:
              lambda: 'return x < 1000;'
            then:
              - light.addressable_set:
                  id: status
                  range_from: 1
                  range_to: 1
                  red: 0.0
                  green: 1.0
                  blue: 0.0
                  color_brightness:  !lambda |-
                    return id(sun_elevation).state > 0 ? 1.0 : 0.5;
            else:
            - if:
                condition:
                  lambda: 'return x > 1500;'
                then:
                - light.addressable_set:
                    id: status
                    range_from: 1
                    range_to: 1
                    red: 1.0
                    green: 0.0
                    blue: 0.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
                else:
                - light.addressable_set:
                    id: status
                    range_from: 1
                    range_to: 1
                    red: 1.0
                    green: 0.72
                    blue: 0.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
    humidity:
      name: "Humidity"    
      id: humidity
      on_value:
        then:
        - if:
            condition:
              lambda: 'return x < 30;'
            then:
              - light.addressable_set:
                  id: status
                  range_from: 2
                  range_to: 2
                  red: 1.0
                  green: 0.0
                  blue: 0.0
                  color_brightness:  !lambda |-
                    return id(sun_elevation).state > 0 ? 1.0 : 0.5;
            else:
            - if:
                condition:
                  lambda: 'return x > 60;'
                then:
                - light.addressable_set:
                    id: status
                    range_from: 2
                    range_to: 2
                    red: 0.0
                    green: 0.0
                    blue: 1.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
                else:
                - light.addressable_set:
                    id: status
                    range_from: 2
                    range_to: 2
                    red: 0.0
                    green: 1.0
                    blue: 0.0
                    color_brightness:  !lambda |-
                      return id(sun_elevation).state > 0 ? 1.0 : 0.5;
  - platform: homeassistant
    id: sun_elevation
    entity_id: sun.sun
    attribute: elevation
  - platform: wifi_signal
    name: "Air quality WiFi Signal Sensor"
    entity_category: diagnostic
    disabled_by_default: true
    update_interval: 60s

switch:
  - platform: gpio
    pin: 12
    id: fan
    restore_mode: ALWAYS_ON
    disabled_by_default: true
    entity_category: diagnostic
  
light:
  - platform: neopixelbus
    type: GRB
    variant: WS2812
    pin: GPIO25
    num_leds: 3
    id: status
    restore_mode: ALWAYS_ON

i2c:
  sda: 21
  scl: 22
  scan: true
  id: bus_a

button:
  - platform: restart
    name: "Restart ${device_name}"
    disabled_by_default: true
    entity_category: diagnostic

By having the SCD41 CO2 connect to the i2c, I thought that that sensor can read temperature.
On the LaskaKit site description says “SCD41 CO2, temperature and air humidity sensor”.
And if that sensor can not read temperature, is it possible to connect both the BME280 and the SCD41 together on the i2c?
Would it be enough space inside the ikea box?

Thanks!!

On your video, you copy from https://esphome.io/components/sensor/scd4x.html the config for the SCD41 …

sensor:

• platform: scd4x
  co2:
  name: "Workshop CO2"
  temperature:
  name: "Workshop Temperature"
  humidity:
  name: "Workshop Humidity"

I see the line for TEMPERATURE, does that mean that the sensor can read it?