31 lines
885 B
Markdown
31 lines
885 B
Markdown
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# Fade out
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Gradually decrease the [LED screen](/microbit/device/screen) brightness until the LED lights are turned off.
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```sig
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led.fadeOut(700);
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```
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### Parameters
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* ms - [Number](/microbit/reference/types/number); the speed that the screen brightness is decreased, expressed in milliseconds (1,000 milliseconds = 1 second). The smaller the number the faster the screen brightness decreased.
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### Example: fade away letter A
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The following example sets the screen brightness to the maximum brightness, displays the letter A, and then gradually fades the letter away:
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```blocks
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led.setBrightness(255)
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basic.showString("A", 1000)
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led.fadeOut(1000)
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```
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### Lessons
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[glowing sword](/microbit/lessons/glowing-sword)
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### See also
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[brightness](/microbit/reference/led/brightness), [fade in](/microbit/reference/led/fade-in), [set brightness](/microbit/reference/led/set-brightness)
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