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move lessons out of web site

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will move select lessons back to "educators" section
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Tom Ball
2016-06-14 11:49:58 -04:00
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docs/lessons/night-light/challenges.md
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# night light challenges
Coding challenges for night light.
## Before we get started
Complete the following [guided tutorial](/lessons/night-light/activity), your code should look like this:
```blocks
led.setBrightness(255)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
led.setBrightness(64)
})
```
### Challenge 1
What if we want to turn off all the LEDs? Let's do this by setting the brightness to `0` when button `B` is pressed. Add an event handler with `on button pressed(B)` add `set brightness(0)` to turn off the LEDs.
```blocks
led.setBrightness(255)
basic.showLeds(`
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
`)
input.onButtonPressed(Button.A, () => {
led.setBrightness(64)
})
input.onButtonPressed(Button.B, () => {
led.setBrightness(0)
})
```
### Challenge 3
Add an event handler with `on shake` to change the LED brightness back to a `255`.
* `Run main` your script to see the LEDs change brightness.