New users - Delayed ON & OFF?

Configuration
1

I need to be able to turn 4 relays ON at the same time but turning OFF requires one of the relays to wait 30 seconds after the other three are turned off.

When looking at the documentation, all I see is the “flash” option which I don’t believe is what I need.’

ON → Relays 1, 2, 3 and 4 are turned ON at the same time
OFF → Relays 1, 2 and 3 are turned off. This trigger a 30 second timer before relay 4 is turned off.

Is there a built-in function or do I need to create a script for this (like for Digital Loggers’ “Pro Switch 7”, which uses LUNA)

2

you need a script

#name it relays_on
script:
  relays_on:
    alias: "Turn ON All Relays"
    sequence:
      - service: switch.turn_on
        target:
          entity_id:
            - switch.relay1
            - switch.relay2
            - switch.relay3
            - switch.relay4

#name it relays_off
script:
  relays_off:
    alias: "Turn OFF Relays With Delay"
    sequence:
      - service: switch.turn_off
        target:
          entity_id:
            - switch.relay1
            - switch.relay2
            - switch.relay3
      - delay: "00:00:30"
      - service: switch.turn_off
        target:
          entity_id: switch.relay4

and to call it
service: script.relays_on
service: script.relays_off

you can use a helper to make an automation input_boolean.relay_toggle

alias: Toggle Relays with Automation
trigger:
  - platform: state
    entity_id: input_boolean.relay_toggle
action:
  - choose:
      - conditions:
          - condition: state
            entity_id: input_boolean.relay_toggle
            state: "on"
        sequence:
          - service: script.relays_on
      - conditions:
          - condition: state
            entity_id: input_boolean.relay_toggle
            state: "off"
        sequence:
          - service: script.relays_off

something like this

3

Another option would be to set up a Template Switch.

4

thats correct

something like this

template:
  - switch:
      - name: "Relay Group"
        turn_on:
          - service: switch.turn_on
            target:
              entity_id:
                - switch.relay_1
                - switch.relay_2
                - switch.relay_3
                - switch.relay_4
        turn_off:
          - service: switch.turn_off
            target:
              entity_id:
                - switch.relay_1
                - switch.relay_2
                - switch.relay_3
          - delay: "00:00:30"
          - service: switch.turn_off
            target:
              entity_id: switch.relay_4
        value_template: >
          {{ is_state('switch.relay_1', 'on') or
             is_state('switch.relay_2', 'on') or
             is_state('switch.relay_3', 'on') or
             is_state('switch.relay_4', 'on') }}