pxt-calliope/docs/lessons/counter/challenges.md
Abhijith Chatra be7858cbed
Cherry picked fixes from v0 to v1 ()
* Fix example and do a few edits ()

* Small fixes to the Karel project text ()

* fix missing shadow type

* add calibration info ()

microbit-support:6348 User reported bug, but didn't realie micro:bit compass had to be calibrated on first run of the program.

* Cherry pick adding various cross-editor compat APIs ()

* fix nudge

* Fix a typo ("screent") in the documentation ()

* Fix a typo
"screent" -> "the LED screen"

* Update showArrow doc string for consistency with other methods

* Doc bugs found by xlators ()

* Update rotation.md ()

reflects actual behaviour of the board

* fixed layout corruption ()

* Updating the new bug filer with the right link

* Update challenges.md ()

For what I'm taught in school, 2 follows 1 😉😉.

* Update simulator.md ()

* Update plant watering.md ()

the connection to servo are male not female

* support for MIDI simulator in v0 ()

* Doc improvements ()

* update grammar in radio-dashboard sample code

* Chanllenge 2 follows 1

I open all challenges.md without "Challenge 2" and review the file
`grep -r "Challenge 2" -L | grep challenge | xargs -I@ code @`

Changes to be committed:
	modified:   docs/lessons/counter/challenges.md
	modified:   docs/lessons/game-counter/challenges.md
	modified:   docs/lessons/night-light/challenges.md
	modified:   docs/lessons/snowflake-fall/challenges.md

* Revert "support for MIDI simulator in v0 ()"

This reverts commit 30a9c411fb80762656e7a636feff8e77b7fd9e67.

* Revert "Cherry pick adding various cross-editor compat APIs ()"

This reverts commit 7308dbef23e9ee402bebb7e721d7014d8252c9e5.

* Fixed pin needed to replace button A ()

* Cherry pick part of the signature update in in2cWriteBuffer (): 7308dbe
2018-10-22 10:00:57 -07:00

867 B

counter challenges

Coding challenges for the counter.

Before we get started

Complete the following guided tutorial At the end of the tutorial, click keep editing. Your code should look like this:

let count = 0
input.onButtonPressed(Button.A, () => {
    count = count + 1
    basic.showNumber(count)
})

Challenge 1

Let's add the code to count when B is pressed. Add an event handler with on button pressed(B) then add the code to count.

let count = 0
input.onButtonPressed(Button.A, () => {
    count = count + 1
    basic.showNumber(count)
})
input.onButtonPressed(Button.B, () => {
    count = count - 1
    basic.showNumber(count)
})

Challenge 2

Now let's try to reset the counter when the @boardname@ is shaken. You will need to register an event handler with on shake.