1.4 KiB
flashing heart activity
Ccontrol images with variables.
~avatar avatar
@video td/videos/flashing-heart-0
In this activity, you will learn how to blink an image on the LED screen.
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To create a new script, go to the Create Code page and tap New Project under KindScript.
Let's start by adding code that plots a heart image on the screen using basic->plot image. Once you are done coding, don't forget to run your code in the simulator or the BBC micro:bit.
basic.plotImage(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .
`) // ***
We want to leave the image on the screen for 0.5 seconds (500 milliseconds), then clear the screen. We can use basic->pause to wait and basic->clear screen to turn off the LEDs.
basic.plotImage(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .
`)
basic.pause(500) // ***
basic.clearScreen() // ***
Finally, we can surround this code with a basic->forever loop to repeat it and add a pause after basic->clear screen to keep the screen off for a little while. Modify your code so that your code looks like this.
basic.forever(() => {
basic.plotImage(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .
`)
basic.pause(500)
basic.clearScreen()
basic.pause(500)
})
~avatar boothing
Excellent, you're ready to continue with the challenges!