pxt-calliope/docs/getting-started.md

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