pxt-calliope/docs/lessons/blink.md
2016-04-01 16:22:47 -07:00

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# blink blocks lesson
Learn how to create a blinking LED.
### @video td/videos/blink-0
## Topic
Plot
## Quick links
* [activity](/microbit/lessons/blink/activity)
* [quiz](/microbit/lessons/blink/quiz)
* [quiz answers](/microbit/lessons/blink/quiz-answers)
* [challenges](/microbit/lessons/blink/challenges)
## Prior learning / place of lesson in scheme of work
Learn how to control a blinking LED. We will be learning how to create a blinking app using forever as well as simple commands, such as plot, unplot and pause.
## Documentation
```docs
led.plot(0, 0)
led.unplot(0, 0)
basic.pause(100)
basic.forever(() => {
})
```
## Objectives
* learn how to turn on LED lights on the LED screen
* learn how to turn off LED lights on the LED screen
* learn how to pause program execution for the specified number of milliseconds