Sending out email when event occurs not on some interval

Hi,

TimeControl App allows sending email on a givent interval. Can i send email as soon as i see a change in my data channel? for example if a voltage is exceeded, can i send out email right away?

Answer 1

[vladimir gershman]

hmm. not there yet. I'd like ot access field 5 and i did:

DoorData = thingSpeakRead(2316538,readKey='xxxxxxxxxxxxxxxx', 'Fields',[1,5]);

but got error:

Error in /users/mss.system.nuncGe/Read Door Status Line: 22 Column: 63

Unsupported use of the '=' operator. To compare values for equality, use '=='. To pass name-value arguments using the name=value format, provide these arguments after all other inputs.

thanks

[Christopher Stapels]

My bad. Dont mix the syntax types. I edited my original post to fix

data = thingSpeakRead(99998565,readKey='xxxxxxxxxxxxxxxx', Fields=[1,4],...);
    %or
data = thingSpeakRead(99998565,'readKey','xxxxxxxxxxxxxxxx', 'Fields',[1,4in ],...);
    

In fact, even the other syntax combination worked, just not the way I did it.

Even this works

,...'ReadKey','xxxxxxxxxx',fields=[1,5]);

[vladimir gershman]

That works. Also, I was using API key from my profile, not the one assigned to each Channel. Very sorry. Now i get 401 errror, but let me fight this one.

Thanks a lot.

Answer 2

[Christopher Stapels]

Definitely! Use the React app. You can check the data on a regular schedule (kinda like time control) or use 'on data insert' for the fastest response. Keep in mind that there are limits on the frequency of sending alerts and tho total number of alerts per user for a license year.

[vladimir gershman]

Aha. Nice. When i looked at React it mentioned Tweet and HTTP only. So, React can send email too? Would you, please, point me to an example?

Thanks

[Christopher Stapels]

This page shows selection of react for MATLAB analysis.

This example shows how to write a MATLAB analysis that sends an email.

[vladimir gershman]

I think i got it. I use react to get the immidiate action and Matlab Analysis method to send out the email.

I tried it, but i get an error reading private channel. It is not clear to me from the examples how to read private channel fields, but i am trying below:

DoorData = thingSpeakRead(ReadKey = 'channel Read API key', Fileds=5);

and get and erro:

Error using Read Door Status Channel ID must be a positive integer.

Thanks

[Christopher Stapels]

*edited The first argument of thingSpeakRead is the channel ID, like this

data = thingSpeakRead(99998565,ReadKey='xxxxxxxxxxxxxxxx', Fields=[1,4],...)