a93febb5b7
* add image and deprecated arrow functions * update locales * map basic.showArrow * map arrow blocks * map & remove arrow images * remove arrow blocks * update locales * remove & patch: rgbw -> rgb button/pin pressed -> button/pin event loudness -> soundLevel * update ts mappings for arrows * add wip ts patch rules * update .blocks files * use Click instead of Down as default in Documentation and tests * patch test.blocks * fix lowercase name tag * update test.blocks * update blocks test files * update blocks test files * format block files * pass blocks file tests * fix ts mapping * fix color.defl value closes https://github.com/microsoft/pxt-calliope/issues/136 * fix ts mappings - add optional spacing at the end of rgbw() - map up to v4.0.19 * add suggested changes * replace innerText by textContent Co-authored-by: JW <gitkraken@juriwolf.de> Co-authored-by: Juri <info@juriwolf.de>
49 lines
1.6 KiB
Markdown
49 lines
1.6 KiB
Markdown
# On Pin Released
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Start an [event handler](/reference/event-handler) (part of the
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program that will run when something happens, like when a button is
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pressed). This handler works when you release pin `0`, `1`, or `2`
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together with `GND`. When you are using this function in a web
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browser, click and release the pins on the screen instead of the ones on the
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@boardname@.
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If you hold the `GND` pin with one hand and touch pin `0`, `1`, or `2`
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with the other, a very small (safe) amount of electricity will flow
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through your body and back into the @boardname@. This is called
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**completing a circuit**. It's like you're a big wire!
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```sig
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input.onPinTouchEvent(TouchPin.P0, ButtonEvent.Up, () => {
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})
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```
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## ~hint
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This function works best when the @boardname@ is using batteries for power,
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instead of the USB cable.
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## ~
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## Parameters
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* ``name`` means the pin that is being released, either `P0`, `P1`, or `P2`
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## Example: pin pressed counter
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This program counts how many times you release the `P0` pin.
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Every time you release the pin, the program shows the number of times on the screen.
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```blocks
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let count = 0
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basic.showNumber(count, 100)
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input.onPinTouchEvent(TouchPin.P0, ButtonEvent.Up, () => {
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count = count + 1
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basic.showNumber(count, 100)
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})
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```
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## See also
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[@boardname@ pins](/device/pins), [pin is pressed](/reference/input/pin-is-pressed), [analog read pin](/reference/pins/analog-read-pin), [analog write pin](/reference/pins/analog-write-pin), [digital read pin](/reference/pins/digital-read-pin), [digital write pin](/reference/pins/digital-write-pin)
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