Timer Function for three commands or more

Hi,

I want to use timer in m code in a way after certain time for example 10sec three different commands will be executed. For example:

tt = timer; tt.StartDelay = 10; tt.TimerFcn = @(~, ~)display('Hello') start(tt)

It will just do display('Hello') after 10 sec. In simple example, I want this code to do display('Hello') and display('dear') and display('James') all together.

P.S.: This is just a simple example. For sure, I do not want to use display in my code.

Answer 1

[Jan]

There are many ways. One is using the UserData:

tt = timer('StartDelay', 10, ...
           'ExecutionMode', 'fixedRate', ...
           'TimerFcn', @TimerCallback, ...
           'UserData', 0);
start(tt)

And the callback:

function TimerCallback(TimerH, EventData)
Pool = {'Hello', 'dear', 'James'};
TimerH.UserData = TimerH.UserData + 1;
disp(Pool{TimerH.UserData});
if TimerH.UserData == 3
  stop(TimerH);
end
end

Modern versions of Matlab contain a shot counter in the EvenData. But as far as I can see, the fields of EventData are not documented.

The 'TasksToExecute' will be useful for a stopping also.