esphome config example

aht10.yaml

  - platform: aht10
    id: ahtx
    i2c_id: bus_a
    temperature:
      name: ${device_name} temperature
      accuracy_decimals: 1
    humidity:
      name: ${device_name} humidity
      accuracy_decimals: 1
    update_interval: 10s

basic.yaml

esphome:
  name: $device_name
  # name_add_mac_suffix

esp8266:
  board: d1_mini
  framework:
    version: 2.7.4

# Enable logging
logger:
  logs:
    sensor: INFO

# Enable Home Assistant API
# api:
#   password: !secret ota_pwd

ota:
  password: !secret ota_pwd

wifi:
  networks:
  - ssid: !secret wifi_ssid
    password: !secret wifi_pwd

  # fast_connect: True

# Example configuration entry
mqtt:
  broker: !secret mqtt_broker_ip
  username: !secret mqtt_username
  password: !secret mqtt_password
  topic_prefix: home-assistant/$device_name

captive_portal:

i2c:
  sda: D2
  scl: D1
  scan: true
  id: bus_a

bathroom.yaml

substitutions:
  # Modify variables based on your settings
  device_name: "bathroom"

<<: !include ./basic.yaml
    
binary_sensor:
  - <<: !include ./pir.yaml

sensor:
  - <<: !include ./aht10.yaml
  - <<: !include ./waterleak.yaml
  - platform: dallas
    id: water_temp
    index: 0
    name: ${device_name} water temperature

pir.yaml

  - platform: gpio
    id: pir_motion
    pin: D6
    name: ${device_name} pir motion
    device_class: motion

waterleak.yaml

  - platform: adc
    id: waterleak
    pin: A0
    name: ${device_name} waterleak
    update_interval: 2s