37 lines
1.0 KiB
Markdown
37 lines
1.0 KiB
Markdown
# glowing pendulum blocks challenges
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Coding challenges for the glowing pendulum tutorial.
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## Before we get started
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Complete the following [glowing pendulum activity](/lessons/glowing-pendulum/activity) and your code should look like this:
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```blocks
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basic.forever(() => {
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let acceleration = input.acceleration(Dimension.Y);
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acceleration = Math.abs(acceleration);
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acceleration = acceleration / 4;
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led.setBrightness(acceleration)
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basic.showLeds(`
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# # # # #
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# # # # #
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# # # # #
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# # # # #
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# # # # #
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`)
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});
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```
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### Challenge 1
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![](/static/mb/lessons/glowing-pendulum-0.jpg)
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Hold the @boardname@ in your hand in a dark room. Move the @boardname@ like a pendulum and produce a slow image that captures the pattern of the @boardname@ LEDs.
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### Challenge 2
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Replace "y" in `acceleration(y)` with "x" or "z". Changing the axis will cause the @boardname@ to measure the force in a different direction. What differences in the resulting pattern does this replacement make?
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