pxt-calliope/docs/projects/flashing-heart.md
2018-07-08 21:08:21 -07:00

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# Flashing Heart
## Step 1
Place the ``||basic:show leds||`` block in the ``||basic:on start||`` block and draw a heart.
```blocks
basic.showLeds(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .`
);
```
## Step 2
Click ``|Download|`` to transfer your code in your @boardname@!
## Step 3
Place another ``||basic:show leds||`` block under the heart to make it blink.
```blocks
basic.showLeds(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .`);
basic.showLeds(`
. # . # .
# . # . #
# . . . #
. # . # .
. . # . .`);
```
## Step 4
Move the blocks inside the ``||basic:forever||`` to repeat the animation.
```blocks
basic.forever(() => {
basic.showLeds(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .`
);
basic.showLeds(`
. # . # .
# . # . #
# . . . #
. # . # .
. . # . .`);
})
```
## Step 5
Click ``|Download|`` to transfer your code in your @boardname@ and watch the hearts flash!
## Step 6
Place more ``||basic:show leds||`` blocks to create your own animation.
```blocks
basic.forever(() => {
basic.showLeds(`
. # . # .
# # # # #
# # # # #
. # # # .
. . # . .`
);
basic.showLeds(`
. # . # .
# . # . #
# . . . #
. # . # .
. . # . .`);
basic.showLeds(`
. . . . .
. # . # .
. # # # .
. . # . .
. . . . .`);
})
```
## Step 7
Click ``|Download|`` to transfer your code in your @boardname@!