tasmota timers

[Sephy P]

Hi guys,
Can someone please explain the use of the "plus/minus" function in timers?
What is this window and what is the normal  use case of this "window" function?

Also, my timer tasks seem to miss occasionally some of the tasks I set for them. Can anyone think of a reason for that?

Cheers, 

Liquias. 

[Philip Knowles]

The +/- times are ‘windows’ that the timer will operate in

See the Timer 4 example here

Timers - Tasmota

Without seeing specific examples the most common reason that a Timer doesn’t trigger is that there’s an issue with the NTP server.

 

Regards

 

Phil K

 

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[Sephy P]

Thank you.

Please bare with me, I want to make sure I understand:

If I set the timer to (for example) 16:23, and for some reason something goes wrong and the Tasmota cannot execute the command (say because of NTP server issue), if I set a window to execute the timer command will it execute if conditions allow it within this "time window"?

I am trying to ask:
If for some reason, timer command cannot execute and a window is defined, will it executes as soon as possible within this window?

Cheers, 

Liquias.

[Philip Knowles]

No, it’s to ‘randomise’ the time so that the switch doesn’t operate at exactly the same time every day. I’m not sure if it will operate after the set time if there has been an issue.

 

Regards

 

Phil K

 

Sent from Mail for Windows

 

From: Sephy P
Sent: 07 October 2021 14:54
To: TasmotaUsers
Subject: Re: tasmota timers

 

Thank you.

Please bare with me, I want to make sure I understand:

If I set the timer to (for example) 16:23, and for some reason something goes wrong and the Tasmota cannot execute the command (say because of NTP server issue), if I set a window to execute the timer command will it execute if conditions allow it within this "time window"?

I am trying to ask:
If for some reason, timer command cannot execute and a window is defined, will it executes as soon as possible within this window?

 

Cheers, 

Liquias.

 

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[Sephy P]

Thanks again.

This is what I thought. 

Why/when could this feature be helpful?

I cannot think of anything. Can you please elaborate on use cases for it?

Cheers,

Liquias.

[Philip Knowles]

The old light switch timers used to randomise the times so that burglars wouldn’t realise it was a timer

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[AKS-Gmail-IMAP]

Another use is to avoid multiple loads switching on or off at the same time to avoid voltage sags in a circuit or to mitigate concurrent spikes coming from collapsing magnetic fields in some electric motors.

To view this discussion on the web, visit https://groups.google.com/d/msgid/sonoffusers/D1EDE8F7-A743-48ED-934F-D3A56BA6A609%40hxcore.ol.