How to make a push button

Configuration Frontend
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1

How can I define a push button, a momentary switch that gets back to off state after X seconds?

I have an Arduino integration that works and looks like this (in configuration.yaml):

switch:
  - platform: arduino
    pins:
      2:
        name: auto_gate

The only issue I have is that I’d need this switch to get back to off state after 2-3 seconds.

I found some posts related to this and I’ve tried adding a momentary attribute to PIN 2, but it’s not a recognized attribute.

I am a noob. Can you please explain step by step what and where to add.

I’m using hassio, default UI and I’m editing files through web File editor add-on.

Thank you

2

So, I assume that this can only be achieved through actions, scripts or some plugin.

Would this feature make sense to be added to the Home Assistant core?

3

Essentially, your arduino code needs to to that.

4

Arduino only has FirmataStandard, as advised in the integration docs.

From my understanding this is doable via automations, right?

I might look at the core code, this is why I am asking if it makes sense to have push buttons in the core with a configurable delay of X seconds before reverting back to off state.

5

Below is what I use for a momentary push button:

 - id: '1551029125083'
   alias: South Shop Door
   trigger:                                            
     - event_data: {}                                      
       event_type: ''
       platform: event                                  
   condition: []                                        
   action:
   - data:                                                 
        entity_id: switch.ch1                             
    service: switch.turn_on                           
   - delay:
        milliseconds: 500                               
   - data:
       entity_id: switch.ch1
    service: switch.turn_off
6

Not sure in which file and under which yaml node to put that.

All I have now as added config is:

switch:
  - platform: arduino
    pins:
      2:
        name: auto_gate

in configuration.yaml.

Which file to edit in the web File editor?

Thanks

7

I think your best bet would to be bring your push button into home assistant as a binary_sensor. Then you can use that as a trigger for an automation to turn on an input_boolean for however long you require and then turn it off again.

1 Like
8

You can either put in automations.yaml or create an automation through the web editor.

1 Like
9

Take a look here: Simple push button in dashboard?

Seems possible to add a momentary parameter to a switch.
Not tested by me, only read fast :slight_smile:

10

I needed a UI button that I could use to trigger a ESP32-Cam through MQTT to take a photo. Below are the steps I followed to make a momentary switch/button, and below that the related automation in yaml to make it work.

In summary, I created a input_boolean Helper, made it visible on the dashboard as a Button, and used an Automation to change the state back to off after a short delay.

  1. Create a input_boolean in Configuration -> Helpers. (To allow you to follow the example below, mine is called “Take Gate Photo”, and the entity_id then translates to “input_boolean.takegatephoto”).
  2. In Lovelace, edit the dashboard (three vertical dots top right), add an appropriate card to your liking, and set the entity to the newly created input_boolean. (I added a button, with Tap Action set to Toggle (default) ).
  3. Add something similar to the example below to your automations.yaml, customized based on your situation.
  4. In Configuration -> Server Controls, check the configuration to make sure it is valid.
  5. Do Reload Automations to implement the changes, and test to see if it works.
# Automatically reset button state back to "off" after short timeout
  - alias: Take Gate Photo
    trigger:
        platform: state
        entity_id: input_boolean.takegatephoto
        to: "on"
    condition: []
    action:
      - delay: 0:0.9
      - service: input_boolean.turn_off
        entity_id: input_boolean.takegatephoto
2 Likes
11

The way I’ve done a pushbutton is to use a cover with MQTT and a button card. Don’t specify any device class, specify the open and close payload the same. On the Lovelace button card specify the entity ID of the cover (e.g. cover.garage_door1_light), a name (Garage Light) and whatever icon you like (hass:lightbulb), set the action to toggle. In this example I don’t have a state sent back so I leave the Show State toggle off so it doesn’t always show “unknown”. My hardware is custom and responds to the MQTT topic (garage/door1/control) and command (toggle), but you can also use Node Red to subscribe to the topic to have it act on the press based on the topic included in a payload.

cover:
  - platform: mqtt
    name: "GarageLight1"
    command_topic: "garage/door1/control"
    payload_open: "toggle"
    payload_close: "toggle"
    retain: false
    value_template: "{{ value }}"
    qos: 0
    unique_id: "cover.garage_door1_light"
12

how to make to button card that always holds the button pushed for xy milisecond?
Reason is i want drive an alarm panel that needs 2 second long push signal. (no less than 2sec and no point for longer push)