115 lines
2.2 KiB
Markdown
115 lines
2.2 KiB
Markdown
# smiley buttons
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### ~avatar
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Use buttons to show a smiley face!
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### ~
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## Step 1
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Use [show leds](/reference/basic/show-leds) to make a smiley face:
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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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```
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## Step 2
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Add an input block for when [button A is pressed](/reference/input/button-is-pressed),
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and **move** the smiley face inside it:
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```blocks
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input.onButtonPressed(Button.A, () => {
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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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Try pressing button A!
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## Step 3
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Now add blocks so that when [button B is pressed](/reference/input/on-button-pressed),
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a frowney appears:
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```blocks
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input.onButtonPressed(Button.A, () => {
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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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input.onButtonPressed(Button.B, () => {
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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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Try pressing ``A`` or ``B``!
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## Send your smileys over radio
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Do you have a second @boardname@ at hand? You could use radio and send your smileys or frownies to other
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@boardname@.
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Since radio can send numbers, we decide that ``0`` is the code for displaying a smiley
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and ``1`` is the code for a frowney.
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Change your code as follows:
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* [radio send number](/reference/radio/send-number) sends a number
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to any other @boardname@ in range
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* [radio on data packet received](/reference/radio/on-data-packet-received) runs code
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when data is received over radio
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```blocks
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input.onButtonPressed(Button.A, () => {
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radio.sendNumber(0)
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})
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input.onButtonPressed(Button.B, () => {
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radio.sendNumber(1)
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})
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radio.onDataPacketReceived(({receivedNumber}) => {
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if (receivedNumber == 0) {
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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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} else {
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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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```
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```package
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radio
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```
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