Possible hardware solutions

[orange-assistant (wisecracker)]

@MaxK

All switch, alarms, etc. work without Home Assistant and/or when the LAN is down.

If the devices is running esphome it is even possible to differentiate the communication channel based on the current situation

For example:

• API connected → trigger action via HA
• WIFI connected (API not) → trigger action via web hook
• No WIFI → trigger action via direct device2device communication (for example esp-now)

@orange-assistant

@xndz

I somehow prefer to code actions directly in ESPHOME setup rather than firing events to HA and then reacting over there, i.e.

- timing: #short

      - ON for at most 1s
      - OFF for at least 0.05s
    then:
      - if:
          condition: 
            api.connected:
          then:
            - homeassistant.service:
                service: light.toggle
                data:
                  entity_id: light.table_lamp
          else:
          - http_request.post: "http://192.168.10.77/light/table_lamp/toggle"

It would be even possible to add another condition and check if wifi is connected and in case it isn’t send maybe send the command via esp-now (direct device communication) with the help of a external component .

I actually never bothered to integrate such a behavior into our esphome nodes because our setup with around 100 devices is rock solid anyway on wifi/lan since many years.