42 lines
902 B
Markdown
42 lines
902 B
Markdown
# looper blocks lesson
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Learn to control blinking LEDs. #LED #screen #for #docs
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### @video td/videos/looper-0
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## Topic
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For Loop
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## Quick links
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* [activity](/microbit/lessons/looper/activity)
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* [challenges](/microbit/lessons/looper/challenges)
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## Class
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Year 7
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## Prior learning/place of lesson in scheme of work
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Learn how to control a blinking LED. We will be learning how to create a blinking app using the for loop as well as simple commands, such as plot and pause.
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## Documentation
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```docs
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for (let i = 0; i < 5; i++) {
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}
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basic.showNumber(0)
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basic.pause(100)
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```
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## Objectives
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* learn how to repeat code a fixed number of times
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* learn how to show a number on the LED screen, one digit at a time (scrolling from left to right)
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* learn how to pause program execution for the specified number of milliseconds
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* learn how to arithmetic operators operate on numbers and return a number
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