Countdown Clock

Builder
1

Hello,

Any idea how to create a countdown clock that counts down from 5 minutes across trials and ends the loop after five minutes?

Thanks,
Janelle

2

Insert a code component. In its “Begin routine” tab, put something like:

# only do the set-up once:
if your_loop_name.thisN == 0:
    task_timer = core.CountdownTimer(start = 300) # duration in seconds.

In the “Each frame” tab, put something like this:

# end task after 5 min:
time_left = task_timer.getTime()

# optional - only needed if you want to display these to the subject:
minutes = int(time_left/60)
seconds = int(time_left - minutes * 60)

if time_left <= 0.0:
    your_loop_name.finished = True
    continueRoutine = False

It’s not clear from your message if you actually want to display the countdown to the user. But if so, put something like this in a text component’s text field, set to update on every frame (make sure the code component is above the text component):

$f'{minutes}:{seconds}'
4 Likes
3

If you would like to run the experiment online then you will need to use a normal clock and subtract its value from 300.

4

Hi @Michael, I need to make a visible millisecond countdown, just like @jan1 . Thanks to your comments I can do it but I want the loop doesn’t end and the countdown to start again with each trial. I also need people to be able to stop it with any key. How can I do it? thank you!

5

Then just delete this code:

if time_left <= 0.0:
    your_loop_name.finished = True
    continueRoutine = False

Just delete this code:

# only do the set-up once:
if your_loop_name.thisN == 0:

Stop what, the countdown display or the whole routine?

1 Like
6

Thank you soo much! I added an answer key after the countdown to stop it. Thanks again!