Restore switch states on power on

ESPHome
1

I am using an esp32 running esphome as a control panel for home assistant.

is there a way on restarting the esp32 for it to poll home assistant for the state of certain switches?

so for example i have a bipolar led that shows is a certain door is open or not - this is managed through home assistant and hows on the dashboard etc - so pins 19 and 21 are red and green on the led (with an interlock) if i lose power to the esp 32, is there a way for esp home to query home assistant for the setting.

or, is there a way for home assistant to see when a esphome instance becomes available and send those results to the esphome? I tend to use node-red more than automation, but happy to use either.

Many thanks for you help in advace.

2

In ESPHome, use the on-boot trigger to call the update component action for all the entities you want to update.

3

Thank you.

Does that call an update from home assistant. I up trying to update esphome with date in home assistant.

4

To get the data from home assistant into ESPHome you must have used something like this: Home Assistant Binary Sensor ā€” ESPHome if so, yes it should update that.

Iā€™m guessing here because you have not shared your ESPHome config.

5

apologies, i should have shared my script, the switches get set by home assistant via a state change in nide red.

esphome:
  name: house_monitor
  platform: ESP32
  board: esp-wrover-kit

wifi:
  ssid: "xxxxxxxxxxx"
  password: "xxxxxxxxxxx"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "House Monitor Fallback Hotspot"
    password: "xxxxxxxxxxx"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

switch:
  - platform: gpio
    pin: 15
    name: "Mon_Buzzer"
    inverted: yes
    
  - platform: gpio
    pin: GPIO19
    name: "Boys_door_red"
    id: Boys_door_red
    interlock: [Boys_door_green]

  - platform: gpio
    pin: GPIO21
    name: "Boys_door_green"
    id: Boys_door_green
    interlock: [Boys_door_red]
    
  - platform: gpio
    pin: GPIO22
    name: "jonPC_green"
    id: jonPC_green
    interlock: [jonPC_red]
  - platform: gpio
    pin: GPIO23
    name: "jonPC_red"
    id: jonPC_red
    interlock: [jonPC_green]
    
  - platform: gpio
    pin: GPIO2
    name: "GamePC_green"
    id: GamePC_green
    interlock: [GamePC_red]
  - platform: gpio
    pin: GPIO4
    name: "GamePC_red"
    id: GamePC_red
    interlock: [GamePC_green]
    
  - platform: gpio
    pin: GPIO05
    name: "spare_green"
    id: spare_green
    interlock: [spare_red]
  - platform: gpio
    pin: GPIO18
    name: "spare_red"
    id: spare_red
    interlock: [spare_green]

  - platform: gpio
    pin: GPIO27
    name: "recycling"
    id: recycling
  - platform: template
    name: Recycling_flash
    id: Recycling_flash
    optimistic: true
    turn_on_action:
    - switch.turn_on: recycling
    - delay: 500ms 
    - switch.turn_off: recycling
    - delay: 500ms
  # turn self on again if still enabled
    - if:
        condition:
          lambda: 'return id(Recycling_flash).state;'
        then:
        - switch.turn_on: Recycling_flash
    turn_off_action:
      - switch.turn_off: recycling  
      
  - platform: gpio
    pin: GPIO13
    name: "bins"
    id: bins
  - platform: template
    name: bins_flash
    id: bins_flash
    optimistic: true
    turn_on_action:
    - switch.turn_on: bins
    - delay: 500ms 
    - switch.turn_off: bins
    - delay: 500ms
  # turn self on again if still enabled
    - if:
        condition:
          lambda: 'return id(bins_flash).state;'
        then:
        - switch.turn_on: bins_flash
    turn_off_action:
      - switch.turn_off: bins  

    
    
binary_sensor:    
  - platform: gpio
    pin:
      number: 33
      mode: INPUT_PULLUP
      inverted: true
    filters:
    - delayed_on: 50ms
    name: "acknowledge"
  - platform: gpio
    pin:
      number: 25
      mode: INPUT_PULLUP
      inverted: true
    filters:
    - delayed_on: 50ms
    name: "gamepc"
  - platform: gpio
    pin:
      number: 34
      mode: INPUT
      inverted: true
    filters:
    - delayed_on: 50ms
    name: "jonpc"
  - platform: gpio
    pin:
      number: 32
      mode: INPUT_PULLUP
      inverted: true
    filters:
    - delayed_on: 50ms
    name: "cctv_mon"
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