ESPHome and Home Assistant Code for Midea Window AC local integration and automation

midea-ac-home-assistant.yaml

# *******************************************************************************
# This contains the code used in my Midea window air conditioner local 
# integration and automation within Home Assistant.  It is specific to
# my paricular AC unit and needs.  It will likely need to be adapted and
# modified for your own needs and equiment.  
#
# This file contains the ESPHome code for the IR transmitter and the FSR
# bed sensor, along with the Home Assistant Helpers and automations.  It is
# not meant to be used as a single file, but broken out into ESPHome code and 
# other Home Assistant code.
# 
# See the following for details on build and use:
# YouTube Video: https://youtu.be/KM01H6OHl_k
# Written Blog: https://resinchemtech.blogspot.com/2023/05/automate-window-ac.html
# *******************************************************************************

# ===============================
#  ESPHome Code
# ===============================

# ------------------------------
#  Climate IR Remote
# ------------------------------

esphome:
  name: bedroom2-ac-remote
  friendly_name: bedroom2-ac-remote

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "kU/10zcjKF4wZPVSy2eA57/sN9EhqXxf052ljXAtphE="  #your auto-generated key will be different

ota:
  password: !secret ota_password

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Bedroom2-Ac-Remote"
    password: !secret ap_password

captive_portal:

remote_transmitter:
  pin: GPIO22
  carrier_duty_percent: 50%

# Uncomment this section if you add an IR Receiver
# remote_receiver:
#  id: br2acrcvr
#  pin:
#    number: GPIO19
#    inverted: true
#    mode:
#      input: true
#      pullup: true
#  # high 55% tolerance is recommended for some remote control units
#  tolerance: 55%

climate:
  - platform: midea_ir    #change this platform to match your AC type
    name: "Bedroom2 AC"
    use_fahrenheit: true
    sensor: br2_room_temp_c
    supports_heat: false
    visual:
      min_temperature: 15.56
      max_temperature: 23.89
      temperature_step: 
        target_temperature: 1.0
        current_temperature: 0.1

sensor:
  - platform: homeassistant
    id: br2_room_temp
    entity_id: sensor.bedroom2_temperature

  - platform: template
    id: br2_room_temp_c
    lambda: |-
      if (id(br2_room_temp).state) {
        return round((id(br2_room_temp).state - 32) * (0.5556));
      } else {
        return 0;
      }
# Remote restart button
button:
  - platform: restart
    name: "Bedroom2 AC Remote Restart"
    
# -----------------------------------
#  Bed Sensor
# -----------------------------------
esphome:
  name: bedroom2-bed-sensor
  friendly_name: bedroom2-bed-sensor

esp8266:
  board: d1_mini

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "M097e186JTBXCVsv6SZyS2+FIJdHhp4/ngMTTszGHD8="  # your auto-generated key will be different

ota:
  password: !secret ota_password

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Bedroom2-Bed-Sensor"
    password: !secret ap_password

captive_portal:

binary_sensor:
  - platform: template
    name: "Bedroom2 Bed Occupied"
    id: br2_o
    lambda: |-
      if (id(br2_bed_sensor).state < id(trigger_level).state) {
        return true;
      } else {
        return false;
      }

  - platform: gpio
    pin: 
      number: D1
      mode: 
        input: true
        pullup: true
      inverted: true
    name: Bedroom2 Bed Button A
    filters:
      - delayed_on: 20ms
      - delayed_off: 20ms

  - platform: gpio
    pin: 
      number: D2
      mode:
        input: true
        pullup: true
      inverted: true
    name: Bedroom2 Bed Button B
    filters:
      - delayed_on: 20ms
      - delayed_off: 20ms

sensor:
  - platform: adc
    pin: A0
    name: "Bedroom2 Bed Sensor"
    id: "br2_bed_sensor"
    icon: mdi:bed
    update_interval: 0.5s
    filters:
      - multiply: 3.3
      - sliding_window_moving_average:
          window_size: 10
          send_every: 1
      - or:
          - throttle: 180s
          - delta: 0.02

  - platform: homeassistant
    name: "Trigger Level"
    id: "trigger_level"
    entity_id: input_number.bedroom2_bed_trigger_level

# Remote restart button
button:
  - platform: restart
    name: "Bedroom2 Bed Sensor Restart"
    
# =================================
#  HOME ASSISTANT HELPER ENTITIES
# =================================
# These must be manually created in YAML or via the UI
# ---------------------
#  INPUT BOOLEANS
# ---------------------
input_boolean:
# Auto-run AC 
  bedroom2_ac_auto_run:
    name: Auto Run Bedroom2 AC
    
# ---------------------
#  INPUT NUMBERS
# ---------------------
input_number:
#  Bed Sensor Trigger Level
  bedroom2_bed_trigger_level:
    name: Bed2 Trigger Level
    min: 0
    max: 3.5
    step: 0.05
    unit_of_measurement: V
    icon: mdi:arrow-collapse-down

# ==============================
#  HOME ASSISTANT AUTOMATIONS
# ==============================
automation:
  # ------------------------
  #  Auto Turn On Automation
  # ------------------------
  - alias: Bedroom2 AC Turn On
    #Automatically turn on AC before bed
    id: 8cf9c132-239b-4b0e-8ffc-bf47bcc35c28
    trigger:
      - platform: time
        at: "22:00:00"
    condition:
      condition: and
      conditions:
        # Check that auto AC is enabled
        - condition: state
          entity_id: input_boolean.bedroom2_ac_auto_run
          state: "on"
        # Only turn on if room temp is above 69°F
        - condition: numeric_state
          entity_id: sensor.bedroom2_temperature
          above: 69
    action:
     # - service: switch.turn_on
     #   target:
     #     entity_id: switch.bedroom2_ac
       - service: climate.set_hvac_mode
         target:
           entity_id: climate.bedroom2_ac
         data:
           hvac_mode: cool
           
   #---------------------------
   #  Auto Turn Off automations
   # --------------------------
  - alias: Bedroom2 AC Turn Off with Bed Sensor
    # Turn off AC based on bed occupancy change if after 6 am
    id: e0f18e39-3025-45fa-b30a-9a449530c81a
    trigger:
      - platform: state
        entity_id: binary_sensor.bedroom2_bed_occupied
        from: 'on'
        to: 'off'
        for: '00:05:00'  #allow time to return to bed (e.g. bathroom)
    condition:
      condition: and
      conditions:
        # Check that auto AC is enabled
        - condition: state
          entity_id: input_boolean.bedroom2_ac_auto_run
          state: "on"
        # Only turn off if after 6 am
        - condition: time
          after: "06:00:00"
          before: "12:00:00"
    action:
      - service: climate.turn_off
        target:
          entity_id: climate.bedroom2_ac

  - alias: Bedroom2 AC Turn Off with Time
    # Check each hour and turn AC off if bed unoccupied
    id: f7888bd8-1ccc-445c-b3e2-1f292e64a8c7
    trigger:
      # Check once per hour from 7-10am
      - platform: time
        at:
          - "07:00:00"
          - "08:00:00"
          - "09:00:00"
          - "10:00:00"
    condition:
      condition: and
      conditions:
        # Check that auto AC is enabled
        - condition: state
          entity_id: input_boolean.bedroom2_ac_auto_run
          state: "on"
        # Check that AC is not currently off
        - condition: not
          conditions: 
            condition: state
            entity_id: climate.bedroom2_ac
            state: 'off'
        # Check that bed is unoccupied
        - condition: state
          entity_id: binary_sensor.bedroom2_bed_occupied
          state: "off"
    action:
      - service: climate.turn_off
        target:
          entity_id: climate.bedroom2_ac