45 lines
990 B
Markdown
45 lines
990 B
Markdown
# night light lesson
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change the brightness of the BBC micro:bit.
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### @video td/videos/night-light-0
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## Topic
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Set Brightness
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## Quick Links
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* [activity](/microbit/lessons/night-light/activity)
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* [challenges](/microbit/lessons/night-light/challenges)
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* [quiz](/microbit/lessons/night-light/quiz)
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* [quiz answers](/microbit/lessons/night-light/quiz-answers)
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## Prior learning/place of lesson in scheme of work
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Learn how to **set brightness** of an image `set brightness` to set the brightness of the LED screen. We will be learning how to set the brightness of the LED screen using LED show LEDs, on button pressed and set brightness.
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## Documentation
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```docs
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led.setBrightness(255)
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input.onButtonPressed(Button.A, () => {
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})
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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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## Objectives
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* learn how to set the brightness of the LED screen
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* learn how to run code when an input button is pressed
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* learn how to turn on all LEDs
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