54 lines
1.0 KiB
Markdown
54 lines
1.0 KiB
Markdown
# Show LEDs
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Shows a picture on the [LED screen](/device/screen).
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```sig
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basic.showLeds(`
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. . . . .
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. # . # .
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. . # . .
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# . . . #
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. # # # .
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`
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)
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```
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## Parameters
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* `leds` is a [string](/types/string) that controls which LEDs are on and off.
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* `interval` is an optional [number](/types/number) that means how many milliseconds to wait after showing a picture.
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If you are programming with blocks, `interval` is set at 400 milliseconds.
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## ~ hint
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See how the @boardname@ shows numbers, text, and displays images by watching this video about [LEDs](https://www.youtube.com/watch?v=qqBmvHD5bCw).
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## ~
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## Example
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This program shows a picture with the ``show leds`` function.
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```blocks
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basic.showLeds(`
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# # . # #
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# # . # #
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. # # # .
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. # . # .
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. # . # .
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`
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)
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```
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## ~hint
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If you are programming in JavaScript, `#` means an LED that is turned
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on and `.` means an LED that is turned off.
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## ~
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## See also
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[plot leds](/reference/basic/plot-leds), [show animation](/reference/basic/show-animation)
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