screen wipe blocks activity
Clear the screen by pressing buttons on the micro:bit
You can use the clear screen` function to turn off all the LED on the screen. Let’s illustrate this concept with a small script where the user has to press the button A to turn off the screen. Let’s start by adding the code to show an animation.
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
We add another line of code that registers an event handler on button pressed
A and calls clear screen
.
basic.showLeds(`
# # # # #
# # # # #
. . . . .
. . . . .
. . . . .
`)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
# # # # #
# # # # #
. . . . .
`)
basic.showLeds(`
. . . . .
. . . . .
. . . . .
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
basic.clearScreen()
})
Run the script in the simulator or on the micro:bit to see how this works!