Need to be able to change shelly polling frequency

[se4n01]

The problem

The momentary mode on shelly switches does not work with the integration. The actuation is too short for homeassistant polling to detect unless you set the auto off value to something extremely long (30+s). This is totally impractical for certain types of switches.

What version of Home Assistant Core has the issue?

2023-7.0

What was the last working version of Home Assistant Core?

N/A

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Shelly

Link to integration documentation on our website

https://www.home-assistant.io/integrations/shelly/

Diagnostics information

N/A

Example YAML snippet

N/A

Anything in the logs that might be useful for us?

OK so to fix this is very easy, you just need to modify the `/homeassistant/components/shelly/const.py` file and decrease the polling multiplier. I found a value of 0.15 is working well (default is 2.2) this makes the polling around 15x faster and the auto-off time in shelly can be set to 2s and homeassistant will detect the momentary switch after this change.

Ideally, a setting could be added into the shelly integration config to set the multiplier in the GUI. 

Big thanks to this thread which helped me identify the problem without too much pain:
https://community.home-assistant.io/t/shelly-official-integration-update-interval/281001/4

Additional information

No response

[home-assistant]

Hey there @balloob, @bieniu, @thecode, @chemelli74, @bdraco, mind taking a look at this issue as it has been labeled with an integration (shelly) you are listed as a code owner for? Thanks!

Code owner commands

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[bieniu]

The Shelly integration does not poll devices, but waits for information sent by devices.

If you are experiencing momentary switch lag, your device configuration is probably incorrect. Have you configured unicast as per the documentation?

[se4n01]

hello bieniu,

No I had not enabled Unicast. I reverted the conf.py to the original version and restarted and then enabled the unicast mode on shelly but the symptoms persist. I will revert back to the snapshot with the conf.py amended.

ninja:
heres me ringing the bell several times with unicast ON and momentary switch set to 2s

[se4n01]

I left unicast on, amended the conf.py again and now when I press:

Zen :)

[thecode]

Please do not modify the polling interval, you are overloading the device and HA. Push updates should work, let's fix it and not do workarounds.

Please download the diagnostics from the device card in Home Assistant and attach it in a comment.

In addition enable debug logging for Shelly, let it run for few minutes, disable it again which will download the log and attach it in a comment.

Note: it is better to drag the log into the comment (which will add it as an attachment) and not copy paste as it is hard to read logs in GitHub.

Thanks

[se4n01]

config_entry-shelly-960fcf295d70e1819bc02f399b2cf7e4.json.txt
home-assistant_shelly_2023-07-06T17-36-33.359Z.log

Here you go, please note I didn't revert the polling back yet to the default (conf.py is still in non-default state)

[thecode]

You need to revert the change for the log to be valid, right now you are polling the device every 4 seconds and not letting it update by itself.

[se4n01]

• first press was in the shelly gui -> event fired (small delay but very long for HA to reset it to off position)
• second press was on the switch actuator -> nothing happen
• third press through HA (event instantaneous)

home-assistant_shelly_2023-07-06T17-53-39.641Z.log

Edit to add recorder: