205 lines
4.4 KiB
Markdown
205 lines
4.4 KiB
Markdown
# Getting started
|
|
|
|
Are you ready to build cool BBC micro:bit programs?
|
|
|
|
Here are some challenges for you. Unscramble the blocks in the editor
|
|
to make real programs that work!
|
|
|
|
### Show LEDs
|
|
|
|
Draw something in the editor with this block. You can draw another
|
|
smiley face, or try something else.
|
|
|
|
```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!
|
|
|
|
### Show animation forever
|
|
|
|
Show one picture after another by snapping blocks together to create an
|
|
animation (like a cartoon)!
|
|
|
|
```blocks
|
|
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
|
|
|
|
Make an animation that never stops with the ``forever`` block.
|
|
|
|
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.
|
|
|
|
```shuffle
|
|
basic.forever(() => {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
# . . . #
|
|
. # # # .
|
|
`)
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
. # # # .
|
|
# . . . #
|
|
`)
|
|
});
|
|
```
|
|
|
|
### Your turn!
|
|
|
|
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.
|
|
|
|
#### ~
|
|
|
|
### Button A and B
|
|
|
|
This program will show the word `banana` on the LED
|
|
screen when you press button `B`.
|
|
|
|
```blocks
|
|
input.onButtonPressed(Button.B, () => {
|
|
basic.showString("banana");
|
|
});
|
|
```
|
|
|
|
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
|
|
button `B`. All of the blocks under `on button A pressed` or `on
|
|
button B pressed` should run when you press that button.
|
|
|
|
```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.
|
|
|
|
```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).
|
|
|
|
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!
|
|
|
|
```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``.
|
|
|
|
```shuffle
|
|
input.onPinPressed(TouchPin.P0, () => {
|
|
basic.showLeds(`
|
|
. . . . .
|
|
. # . # .
|
|
. . . . .
|
|
# . . . #
|
|
. # # # .`);
|
|
});
|
|
```
|
|
|
|
### Your turn!
|
|
|
|
Use the screen, buttons, gestures, and pins to make your own fun game
|
|
with the BBC micro:bit!
|