2016-03-26 00:47:20 +01:00
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# If
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2016-04-02 01:22:47 +02:00
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Run code based on a condition.
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2016-03-26 00:47:20 +01:00
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### @parent blocks/language
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Conditionally run code depending on whether a [Boolean](/microbit/reference/types/boolean) condition is true or false.
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### Block Editor
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In the Block Editor, click on the dark blue gear icon (see above) to add an *else* or *if* to the current block.
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### Example: adjusting screen brightness
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If the screen [brightness](/microbit/reference/led/brightness) is `< 100`, this code sets the brightness to `255`:
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### Lessons
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[love meter](/microbit/lessons/love-meter), [zoomer](/microbit/lessons/zoomer)
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### See also
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[while loop](/microbit/reference/loops/while), [for](/microbit/reference/loops/for), [boolean](/microbit/reference/types/boolean)
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