custom_tutorial.md

Flashing Heart

Introduction @unplugged

Learn how to use the LEDs and make a flashing heart! (Want to learn how lights work? Watch this video).

Step 1 @fullscreen

Place the ||basic:show leds|| block in the ||basic:forever|| block and draw a heart.

Step 2

Place another ||basic:show leds|| block. You can leave it blank and draw what you want.

basic.forever(function() {
    basic.showLeds(`
        . # . # .
        # # # # #
        # # # # #
        . # # # .
        . . # . .`);
    basic.showLeds(`
        . . . . .
        . . . . .
        . . . . .
        . . . . .
        . . . . .`);
})

Step 3

Look at the virtual @boardname@, you should see the heart and your drawing blink on the screen.

Step 4

If you have a @boardname@ connected, click |Download| to transfer your code and watch the hearts flash!