config.yaml

substitutions:
  name: co2sensor
  frc: enabled

esphome:
  name: $name

esp8266:
  board: d1_mini

logger:

ota:
  - platform: esphome
    password: !secret ota_password

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

web_server:
  ota: false
  local: true

prometheus:

i2c:

sensor:
  - platform: scd4x
    co2:
      name: CO2
    temperature:
      name: Temperature
    humidity:
      name: Humidity
    measurement_mode: low_power_periodic
    id: my_scd4x

button:
  - platform: template
    name: FRC
    on_press:
      - if:
          condition:
            lambda: 'return strcmp("$frc", "enabled") == 0;'
          then:
            - scd4x.perform_forced_calibration:
                value: !lambda 'return id(frc_reference).state;'
                id: my_scd4x
          else:
            - logger.log: 'FRC is disabled.'

number:
  - platform: template
    name: FRC Reference
    min_value: 400
    max_value: 800
    step: 1
    optimistic: true
    id: frc_reference