Have time object start and stop at a specific time

Hi,

I have a timer object, tmr:

%%my_timer_test
tmr = timer                                 ...
    (   'Name'          , 'my_timer'        ...
    ,   'TimerFcn'      , @(~,~) my_script  ...
    ,   'BusyMode'      , 'drop'            ...
    ,   'ExecutionMode' , 'fixedDelay'      ...
    ,   'Period'        ,  600               ...
    ,   'StartDelay'    ,  1                ...
    );

and a script, my_script.m:

%%my_script
disp(datestr(now,31))

How can I modfify the timer, so that it starts at 0900, fires every 10 minutes (600 seconds), and stops firing at 1200?

Any help would be appreciated!

IP

[Rik]

Should it restart itself the next day?

[Inna Pelloso]

I will be starting Matlab with a crontab each day around 0800, and want the time object start at 0900, fire at 10 minute intervals, with the final firing at 1200.

Answer 1

[Rik]

You need to set the delay depending on the time that the timer object is created. The number of calls can be either calculated or set.

x = datetime("now");
StartDelay = seconds( datetime([year(x) month(x) day(x) 19 0 0])-x );
% You can also hard-code this to 19 if you prefer.
NumberOfCalls = numel(datetime([0 0 0,9 0 0]):duration(0,10,0):datetime([0 0 0,12 0 0]));

tmr = timer                                 ...
    (   'Name'          , 'my_timer'        ...
    ,   'TimerFcn'      , @(~,~) my_script  ...
    ,   'BusyMode'      , 'drop'            ...
    ,   'ExecutionMode' , 'fixedDelay'      ...
    ,   'Period'        ,  600              ...
    ,   'TasksToExecute',  NumberOfCalls    ...
    ,   'StartDelay'    ,  StartDelay       ...
    );

[Inna Pelloso]

This function: startat(t,firingTime), allows you specify the specific time to execute the timer, and is precsely what I'm looking for!

Appreciate your help!

IP