205 lines
4.4 KiB
Markdown
205 lines
4.4 KiB
Markdown
# Getting started
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Are you ready to build cool BBC micro:bit programs?
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Here are some challenges for you. Unscramble the blocks in the editor
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to make real programs that work!
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### Show LEDs
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Draw something in the editor with this block. You can draw another
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smiley face, or try something else.
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```shuffle
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basic.showLeds(`
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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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```
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To move your program from your computer to the BBC micro:bit:
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* Connect your micro:bit to the computer with the USB cable.
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* Click **Compile**.
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* Drag and drop the new file whose name ends in **.hex** into the **MICROBIT** window.
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* Wait until the yellow light stops blinking!
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### Show animation forever
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Show one picture after another by snapping blocks together to create an
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animation (like a cartoon)!
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```blocks
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basic.showLeds(`
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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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basic.showLeds(`
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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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```
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To move your program from your computer to the BBC micro:bit:
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* Connect your micro:bit to the computer with the USB cable.
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* Click **Compile**.
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* Drag and drop the new file whose name ends in **.hex** into the **MICROBIT** window.
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* Wait until the yellow light stops blinking!
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### Repeat Forever
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Make an animation that never stops with the ``forever`` block.
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Unscramble these blocks in the editor to make an animation that first
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shows a happy face, then an unhappy face, then a happy face, and never
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stops.
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```shuffle
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basic.forever(() => {
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basic.showLeds(`
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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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basic.showLeds(`
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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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});
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```
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### Your turn!
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You can also change the pictures to make your own animation.
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Make your own awesome animation with the ``show leds`` and ``forever``
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blocks.
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#### ~hint
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You can make your animation longer if you use more than two pictures.
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#### ~
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### Button A and B
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This program will show the word `banana` on the LED
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screen when you press button `B`.
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```blocks
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input.onButtonPressed(Button.B, () => {
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basic.showString("banana");
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});
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```
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Now try to unscramble these blocks in the editor so that the micro:bit
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shows **YES** when you press button `A` and **NO** when when you press
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button `B`. All of the blocks under `on button A pressed` or
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`on button B pressed` should run when you press that button.
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```shuffle
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input.onButtonPressed(Button.A, () => {
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basic.showString("YES");
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});
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input.onButtonPressed(Button.B, () => {
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basic.showString("NO");
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});
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```
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### Shake
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You can find when someone is shaking the BBC micro:bit by checking its
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**accelerometer** (it finds whether the micro:bit is speeding up or
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slowing down).
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Unscramble these blocks in the editor to show a frownie when someone
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shakes the micro:bit.
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```shuffle
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input.onGesture(Gesture.Shake, () => {
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basic.showLeds(`
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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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```
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### Tilting with gestures
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You can also find when someone is tilting the micro:bit left or right,
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face up or face down, and logo up or logo down (the logo is the yellow
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oval picture at the top of the board).
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Try to build a Rock Paper Scissors game where you tilt the micro:bit
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left to show paper, right to show scissors, and down to show rock.
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Unscramble these blocks in the editor and try this program on the
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micro:bit itself!
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```shuffle
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input.onGesture(Gesture.TiltLeft, () => {
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basic.showLeds(`
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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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input.onGesture(Gesture.LogoDown, () => {
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basic.showLeds(`
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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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input.onGesture(Gesture.TiltRight, () => {
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basic.showLeds(`
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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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```
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### Pins
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You can also use the pins as buttons. (The pins are the holes in the
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metal bar at the bottom of the micro:bit board.) For example, hold
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the ``GND`` button with one hand and touch the ``0`` pin (called
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``P0``) with your other hand to tell the micro:bit you're pressing it.
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Unscramble the blocks in the editor to show a smiley when you press
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pin ``P0``.
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```shuffle
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input.onPinPressed(TouchPin.P0, () => {
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basic.showLeds(`
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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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```
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### Your turn!
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Use the screen, buttons, gestures, and pins to make your own fun game
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with the BBC micro:bit!
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