Momentary GPIO Switch. Doable?

Configuration
1

How to configure a switch combining BOTH momentary and GPIO features?

My current configuration.yaml includes:

switch:
  - platform: momentary
    name: Momentary Switch
    toggle_for: 0.5
  - platform: rpi_gpio
    switches:
      - name: RPi GPIO Switch
        port: 22

This configuration is based on two HACS integrations: Momentary Switch Component and Raspberry Pi GPIO.

This configuration yields two distinct switches represented in Lovelace this way:
image

These two switches work as expected as Momentary Switch falls back to off after 0.5s and RPi GPIO Switch controls a GPIO on my Raspberry Pi.

But how to configure a SINGLE switch combining both momentary and rpi_gpio platform features?

Am a newbie. Any help would be greatly appreciated!

2

Here, catch. This is straight from my water heater ESP device and has been working solidly for the past 3 years:

switch:
  - platform: gpio
    name: "Water Heater Switch"
    pin: 5 #BrownWhite D1
    inverted: yes
    id: whrelay1
    restore_mode: ALWAYS_OFF
    on_turn_on:
      then:
        - delay: 3s
        - switch.turn_off: whrelay1

You only really need the last 4 lines if you already have it set up as a switch under the gpio platform - just change the delay to suit your needs.

3

Thanks for the help, but unfortunately it doesn’t work as you might confuse gpio (in ESPHome?) with rpi_gpio?

Hence I get this error message:

Configuration warnings
Invalid config for 'rpi_gpio' from integration 'switch' at configuration.yaml, line 44:
'on_turn_on' is an invalid option for 'switch.rpi_gpio', check: switches->0->on_turn_on

…after modifying configuration.yaml this way:

switch:
  - platform: rpi_gpio
    switches:
      - name: RPi GPIO Switch 22
        port: 22
        unique_id: rpi_gpio_switch_22
        on_turn_on:
          then:
            - delay: 0.5s
            - switch.turn_off: rpi_gpio_switch_22
4 
switch:
  - platform: rpi_gpio
    switches:
      - name: RPi GPIO Switch
        unique_id: rpi_gpio_switch
        port: 22
  - platform: template
    switches:
      momentary_switch:
        friendly_name: Momentary Switch
        value_template: >-
          {% if is_state('switch.rpi_gpio_switch','off') %}
          off
          {% elif is_state('switch.rpi_gpio_switch','on') %}
          on
          {% else %}
          unavailable
          {% endif %}
        turn_on:
          - service: switch.turn_on
            target:
              entity_id: switch.rpi_gpio_switch
          - delay:
              milliseconds: 500
          - service: switch.turn_off
            target:
              entity_id: switch.rpi_gpio_switch
        turn_off:
          - service: switch.turn_off
            target:
              entity_id: switch.rpi_gpio_switch

… seems to do the job.
The HACS integration called Momentary Switch Component is not required anymore.
Hiding RPi GPIO Switch from the auto-generated lovelace panel allows to see Momentary Switch only.