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start

Class: timer

Start timer object

Syntax

Description

example

start(t) starts the timer object, t. If t is an array of timer objects, start starts all the timers.

The start method sets the Running property of the timer object to 'on', executes the StartFcn callback, and initiates TimerFcn callback .

Input Arguments

t

Object of class timer.

Examples

expand all

Start Timer

Create and start a timer that displays the message 'timer started.' as the StartFcn callback and generates a random number as the TimerFcn callback. Delete the timer.

t = timer('StartFcn',@(~,~)disp('timer started.'),'TimerFcn',@(~,~)disp(rand(1)));
start(t)
delete(t)
timer started.
    0.9706

Your output from rand will vary.

Start Several Timers

Create and start three timers that displays a message for the StartFcn callbacks and compute the sine, cosine, and tangent of pi/4 as the TimerFcn callbacks. Delete the timers.

t1 = timer('StartFcn',@(~,~)disp('t1 started.'),'TimerFcn',@(~,~)sin(pi/4)); 
t2 = timer('StartFcn',@(~,~)disp('t2 started.'),'TimerFcn',@(~,~)cos(pi/4)); 
t3 = timer('StartFcn',@(~,~)disp('t3 started.'),'TimerFcn',@(~,~)tan(pi/4)); 
start([t1 t2 t3]);
delete([t1 t2 t3]);
t1 started.
t2 started.
t3 started.

See Also

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