42 lines
1.0 KiB
Markdown
42 lines
1.0 KiB
Markdown
# flashing heart blocks lesson
|
|
|
|
Learn how to create LED images with a global variable.
|
|
|
|
### @video td/videos/flashing-heart-0
|
|
|
|
## Topic
|
|
|
|
Pause
|
|
|
|
## Quick links
|
|
|
|
* [activity](/lessons/flashing-heart/activity)
|
|
* [quiz](/lessons/flashing-heart/quiz)
|
|
* [quiz answers](/lessons/flashing-heart/quiz-answers)
|
|
* [challenges](/lessons/flashing-heart/challenges)
|
|
## Prior learning/place of lesson in scheme of work
|
|
|
|
Learn how to `show LEDs` by showing an image on the LED screen. We will be learning how to create a blinking app using a forever loop as well as simple commands, such as show LEDs, pause, and clear screen.
|
|
|
|
## Documentation
|
|
|
|
```cards
|
|
basic.forever(() => {})
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. . . . .
|
|
. . # . .
|
|
. . . . .
|
|
. . . . .
|
|
`)
|
|
basic.pause(100)
|
|
basic.clearScreen()
|
|
```
|
|
|
|
## Objectives
|
|
|
|
* learn how to repeat code in the background forever
|
|
* learn how to show LEDs on the LED screen
|
|
* learn how to pause your code for the specified number of milliseconds
|
|
* learn how to turn off all the LED lights on the LED screen
|