652abe0892
* adding images * fixed image path * half way through instructions * updating maker instructions * adding protection section * renaming making -> make * fixed link * added coding section * updated lessons * fix broken links
59 lines
1.4 KiB
Markdown
59 lines
1.4 KiB
Markdown
# Wallet - Code
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## Simple animation
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Let's start by using a combination of [forever](/reference/basic/forever) and [show leds](/reference/basic/show-leds) to create animation:
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```blocks
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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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Download this code to your @boardname@ and try it out.
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## Turn off animation in the pocket
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If the wallet is in your pocket, you should turn off the LEDs to save energy.
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How do we know that the wallet is in the pocket? It is really dark in there... We can use the [light level](/reference/input/light-level) to detect this!
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Using an [if statement](/blocks/logic/if), we can test if the level of light is sufficient to turn on the screen. Otherwise, we turn off the screen for a few second to save energy.
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```blocks
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basic.forever(() => {
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if (input.lightLevel() > 16) {
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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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} else {
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// clear screen and wait
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basic.clearScreen()
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basic.pause(3000)
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}
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})
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``` |