60 lines
1.8 KiB
Markdown
60 lines
1.8 KiB
Markdown
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# zoomer challenges
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The acceleration function. #acceleration #docs #input
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**Challenge 0**
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Great job! You have successfully completed the [zoomer tutorial](https://test.microbit.co.uk/td/lessons/zoomer/challenges) . You have created a script that measures the acceleration on the micro:bit in the "z" direction of a 3D world.
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```
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basic.forever(() => {
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let millig = input.acceleration("z")
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basic.showNumber(millig, 150)
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basic.pause(100)
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})
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```
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**Challenge 1**
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Create a new variable called milliX that holds the acceleration in the "x" direction or the horizontal direction.
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```
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basic.forever(() => {
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let millig1 = input.acceleration("z")
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basic.showNumber(millig1, 150)
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basic.pause(100)
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let milliX = input.acceleration("x") // ***
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})
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```
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* Run the code to see if it works as expected.
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**Challenge 2**
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If Button `A` is pressed, we want to show the acceleration in the "x" direction by adding an if statement that checks to see if Button `A` is pressed and then calling the show number method passing in milliX as the number.
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```
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basic.forever(() => {
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let millig2 = input.acceleration("z")
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basic.showNumber(millig2, 150)
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basic.pause(100)
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let milliX1 = input.acceleration("x")
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if (input.buttonIsPressed("A")) {
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basic.showNumber(milliX1, 150) // ***
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}
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})
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```
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* Run the code to see if it works as expected.
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### Challenge 3
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If Button `B` is pressed, program the micro:bit to display the acceleration in the "y" direction.
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You can do this by storing the acceleration in a variable: `var milliY := input->acceleration("y")`.
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Then add an `if` statement that checks if Button `B` is pressed: `if input-> button is pressed ("B") then`.
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Inside of the `if` statement, add `basic->show number(milliY, 150)`, which will display the acceleration in the "y" direction.
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