2.5 KiB
basic LED show.
Challenge 0
You have successfully following the [guided tutorial] (https://live.microbit.co.uk/td/tutorials/blink). If not, we should make sure the @boardname@ 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 @boardname@. Let's give it a go!
while (true) {
led.plot(2, 2)
basic.pause(200)
basic.clearScreen()
basic.pause(200)
}
Challenge 1
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
Make sure to add this line of code within the while
scope!
while (true) {
led1.plot(2, 2)
basic1.pause(200)
basic1.clearScreen()
basic1.pause(200)
basic1.showString("HELP", 150) // ***
}
- run the code and see that it works as expected
Challenge 2
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.)
while (true) {
led2.plot(2, 2)
basic2.pause(200)
basic2.clearScreen()
basic2.pause(200)
basic2.showString("HELP", 150)
basic2.showNumber(999, 150) // ***
}
Awesome! You have designed your message and a number to call in case of an emergency.
Challenge 3
- tap the
run
button to view the updated script on the simulator
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.
while (true) {
led3.plot(2, 2)
basic3.pause(200)
basic3.clearScreen()
basic3.pause(200)
basic3.showString("HELP", 150)
basic3.showNumber(999, 150)
basic3.showAnimation(`
# # . # #
. # . # .
. . # . .
# . . . #
# # # # #
`, 400) // ***
}
Awesome! We have implemented a string, number, and animation
- run the code and see that it works as expected.
Challenge 4
Use the same logic basic->string
, basic->number
, or basic->animation
to turn on the LEDs and display information!!!
- run the code and see that it works as expected