# 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