87 lines
2.5 KiB
Markdown
87 lines
2.5 KiB
Markdown
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# basic LED show
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#tutorial #docs
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### Challenge 0
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You have successfully following the [guided tutorial] (https://live.microbit.co.uk/td/tutorials/blink). If not, we should make sure the micro:bit script displays a blinking script on screen. We want to plot the x and y coordinates to 2, 2. Additionally, you will pause by 100 milliseconds then you will clear the screen of the micro:bit. Let's give it a go!
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```
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while (true) {
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led.plot(2, 2)
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basic.pause(200)
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basic.clearScreen()
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basic.pause(200)
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}
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```
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### Challenge 1
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Use `basic->show string` to display text after the blink. You will be writing a series of letters to display a series of letters. Try to unravel this secret code word: HELP. This line of code is within the while scope
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Make sure to add this line of code within the `while` scope!
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```
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while (true) {
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led1.plot(2, 2)
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basic1.pause(200)
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basic1.clearScreen()
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basic1.pause(200)
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basic1.showString("HELP", 150) // ***
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}
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```
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* run the code and see that it works as expected
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### Challenge 2
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You can also display a number on screen using `basic‐>show number`. Add code under `basic‐>show string` to display the emergency number to call in the United Kingdom. (NOTE: 999 is the historic emergency number for the United Kingdom. All calls are answered by 999 operators. Calls are always free.)
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```
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while (true) {
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led2.plot(2, 2)
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basic2.pause(200)
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basic2.clearScreen()
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basic2.pause(200)
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basic2.showString("HELP", 150)
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basic2.showNumber(999, 150) // ***
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}
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```
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Awesome! You have designed your message and a number to call in case of an emergency.
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### Challenge 3
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* tap the `run` button to view the updated script on the simulator
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Add an associated animation after the emergency number . You can also create a cool animation on screen using `basic->show animation`. Add code under `basic->show number` to display an animation.
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```
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while (true) {
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led3.plot(2, 2)
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basic3.pause(200)
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basic3.clearScreen()
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basic3.pause(200)
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basic3.showString("HELP", 150)
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basic3.showNumber(999, 150)
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basic3.showAnimation(`
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# # . # #
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. # . # .
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. . # . .
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# . . . #
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# # # # #
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`, 400) // ***
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}
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```
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Awesome! We have implemented a string, number, and animation
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* run the code and see that it works as expected.
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### Challenge 4
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Use the same logic `basic->string`, `basic->number`, or `basic->animation` to turn on the LEDs and display information!!!
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* run the code and see that it works as expected
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