pxt-calliope/docs/lessons/magic-logo/activity.md

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# magic logo activity
Show an image that points up when the logo is up.
### ~avatar avatar
Welcome! This tutorial will help you display an arrow pointing toward the logo! Let's get started.
### ~
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Using the **accelerometer** sensor, the @boardname@ can detect when the **logo** is oriented **up**. We call that the **logo up** event. We will use `on logo up` to register an event handler that will run when the **logo up** event happens.
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```blocks
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input.onGesture(Gesture.LogoUp, () => {
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})
```
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When the @boardname@ goes logo up, the code nested under the `on logo up` function will run. Let's add a line of code to show LEDs in there.
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```blocks
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input.onGesture(Gesture.LogoUp, () => {
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basic.showLeds(`
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. . # . .
. # # # .
# # # # #
. . # . .
. . # . .
`)
})
```
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Run your code and try to turn around the @boardname@ to see the **logo up** event in action!
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### ~avatar boothing
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Excellent, you're ready to continue with the [challenges](/lessons/magic-logo/challenges)!
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### ~