89 lines
1.8 KiB
Markdown
89 lines
1.8 KiB
Markdown
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# compass challenges
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Display the direction that the BBC micro:bit is facing using the compass
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## Before we get started
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Complete the following guided tutorial:
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* [tutorial](/microbit/lessons/compass/tutorial)
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At the end of the tutorial, click `keep editing`. Your code should look like this:
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```
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input.calibrate()
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basic.forever(() => {
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let degrees = input.compassHeading()
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if (degrees < 45) {
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basic.showString("N", 100)
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} else if (degrees < 135) {
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basic.showString("E", 100)
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}
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else if (degrees < 225) {
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basic.showString("S", 100)
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}
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else {
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basic.showString("W", 100)
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}
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})
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```
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### Challenge 1
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Instead of displaying `N` when the BBC micro:bit is pointing North, display a star to indicate the north star.
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```
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input.calibrate()
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basic.forever(() => {
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let degrees1 = input.compassHeading()
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if (degrees1 < 45) {
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basic.plotImage(`
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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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} else if (degrees1 < 135) {
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basic.showString("E", 100)
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}
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else if (degrees1 < 225) {
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basic.showString("S", 100)
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}
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else {
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basic.showString("W", 100)
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}
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})
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```
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* Run your code to see if it works as expected
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### Challenge 2
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Instead of displaying just `N`, `W`, `S`, or `E`, display the full word.
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```
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input.calibrate()
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basic.forever(() => {
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let degrees2 = input.compassHeading()
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if (degrees2 < 45) {
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basic.showString("NORTH", 100) // ***
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} else if (degrees2 < 135) {
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basic.showString("EAST", 100) // ***
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}
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else if (degrees2 < 225) {
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basic.showString("SOUTH", 100) // ***
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}
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else {
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basic.showString("WEST", 100) // ***
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}
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})
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```
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* Run your code to see if it works as expected
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### Challenge 3
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Display your own unique message for each direction.
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