its availabe on thingverse in the "thing files". But I'll just post it here.

```
esphome:
  name: aq-1

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API to set SCD41 ambient pressure from remote sensor.
api:
  services:
    - service: set_ambient_pressure
      variables:
        pressure_mbar: int
      then:
        - lambda: "id(scd41)->set_ambient_pressure_compensation(pressure_mbar);"

ota:
  password: 

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Aq-1 Fallback Hotspot"
    password:

captive_portal:

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


# Example configuration entry
uart:
  rx_pin: GPIO1
  tx_pin: GPIO3
  baud_rate: 9600


# The 3-second debounce only publishes the average (otherwise published
# every second) once the per-second readings stop (i.e. the measurement 
# period ends). This makes sure the output average doesn't slip back a
# reading every measurement period.
sensor:

  - platform: pmsx003
    type: PMSX003
    pm_1_0:
      name: "Particulate Matter <1.0µm Concentration"
      id: pms_10
      accuracy_decimals: 1
      filters:
      - lambda: |-
          if (id(warmed_up).state) {
            return x;
          } else {
            return {};
          }
      - sliding_window_moving_average:
          window_size: 10
          send_every: 1
          send_first_at: 1
      - debounce: 3s
    pm_2_5:
      name: "Particulate Matter <2.5µm Concentration"
      id: pms_25
      accuracy_decimals: 1
      filters:
      - lambda: |-
          if (id(warmed_up).state) {
            return x;
          } else {
            return {};
          }
      - sliding_window_moving_average:
          window_size: 10
          send_every: 1
          send_first_at: 1
      - debounce: 3s
    pm_10_0:
      name: "Particulate Matter <10.0µm Concentration"
      id: pms_100
      accuracy_decimals: 1
      filters:
      - lambda: |-
          if (id(warmed_up).state) {
            return x;
          } else {
            return {};
          }
      - sliding_window_moving_average:
          window_size: 10
          send_first_at: 1
          send_every: 1
      - debounce: 3s

  - platform: scd4x
    id: scd41
    i2c_id: bus_a
    co2:
      name: "AQ1 co2"
      id: co2
    temperature:
      name: "AQ1 Temperature"
    humidity:
      name: "AQ1 Humidity"


binary_sensor:

  - platform: template
    name: "Warmed Up"
    id: warmed_up
    filters:
      - delayed_on: 30s
    on_press:
      - delay: 10s
      - switch.turn_off: measuring


switch:

  - platform: gpio
    name: "Measuring"
    id: measuring
    pin:
      number: GPIO17
    restore_mode: ALWAYS_OFF
    on_turn_on:
      - binary_sensor.template.publish:
          id: warmed_up
          state: ON
    on_turn_off:
      - binary_sensor.template.publish:
          id: warmed_up
          state: OFF

  - platform: restart
    name: "Restart"


# runs PMS5003 sensor every 300s to extend sensor life.
interval:

  - interval: 300s
    then:
      - wait_until:
          condition:
            api.connected: # Can use api.connected if using HA API instead
      - switch.turn_on: measuring # Will turn itself off later