pxt-calliope/docs/reference/basic/pause.md

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# Pause
Pause the program for the number of milliseconds you say.
You can use this function to slow your program down.
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```sig
basic.pause(400)
```
### Parameters
* ``ms`` is the number of milliseconds that you want to pause (100 milliseconds = 1/10 second, and 1000 milliseconds = 1 second).
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### Example: diagonal line
This example draws a diagonal line by turning on LED `0, 0` (top left) through LED `4, 4` (bottom right).
The program pauses 500 milliseconds after turning on each LED.
Without `pause`, the program would run so fast that you would not have time to see each LED turning on.
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```blocks
for (let i = 0; i < 5; i++) {
led.plot(i, i)
basic.pause(500)
}
```
### See also
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[while](/reference/loops/while), [running time](/reference/input/running-time), [for](/reference/loops/for)
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