47 lines
1.0 KiB
Markdown
47 lines
1.0 KiB
Markdown
# Show LEDs
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Display an image on the BBC micro:bit's [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](/reference/types/string) that shows which LEDs are on and off.
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* `ms` is an optional [Number](/reference/types/number) that shows how many milliseconds to wait after showing a picture.
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If you are programming with blocks, `ms` starts out as 400 milliseconds.
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### Example
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Open the `basic` card in the Block Editor and select the `show leds` blocks.
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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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If you are programming in JavaScript, `#` means an LED that is turned on and `.` means an LED that is turned off.
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### Lessons
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[smiley](/lessons/smiley), [flashing heart](/lessons/flashing-heart), [magic logo](/lessons/magic-logo)
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### See also
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[plot leds](/reference/led/plot-leds), [show animation](/reference/basic/show-animation)
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