Run the roll only once

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Run the roll only once

#1 Post by wthiess » 13 Feb 2019, 17:07

I am desperate. I would like to send a mail at temperature <5 degrees.
Unfortunately, my role then sends an e-mail every 5 seconds. Every 5 seconds the temperature value is read out. But I only want one mail. And only at the first fall below the temperature. Please help.

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Re: Run the roll only once

#2 Post by mrwee » 13 Feb 2019, 18:35

Dummy variable which is checked before sending e-mails, and set when the <5 degree is triggered. Consider what should reset it again? 10 degrees or ?

The Wiki is your friend, in terms of how to do it

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Re: Run the roll only once

#3 Post by grovkillen » 13 Feb 2019, 19:15

Yes as long as the temperature is below that temperature the event will trigger once every interval (that you set). You need to have a variable that is set to (lets say) 1 as soon as the email is sent and only if that variable is 0 you send an email. The variable is set to zero once the temperature is above the given temperature.

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