pxt-calliope/docs/reference/pins/set-pull.md
Amerlander 918af4f3ac
Bump V3.0.22 ()
* change simulator svg

* change radio image

* Remove google fonts cdn

* change color of 'advanced' button

* font fix

* font fix 2

* display fix

* change fullsceen simulator bg

* Continuous servo

* handle continuous state

* adding shims

* update rendering for continuous servos

* fixing sim

* fix sig

* typo

* fix sim

* bump pxt

* bump pxt

* rerun travis

* Input blocks revision

- add Button and Pin event types
- merge onPinPressed & onPinReleased in new onPinEvent function
- create new onButtonEvent function

* update input blocks in docs and tests

* remove device_pin_release block

* Hide DAL.x behind Enum

* bring back deprecated blocks, but hide them

* shims and locales files

* fix input.input. typing

* remove buildpr

* bump V3

* update simulator aspect ratio

* add Loudness Block

* revoke loudness block

* Adds soundLevel

To be replaced by pxt-common-packages when DAL is updated.

* Remove P0 & P3 from AnalogPin

Co-authored-by: Juri <gitkraken@juriwolf.de>
2020-09-08 02:04:25 -07:00

35 lines
1000 B
Markdown

# Set Pull
Configure the electrical pull of the specified pin.
Many @boardname@ pins can be configured as _pull-ups_. For example, a
pull-up can set a pin's voltage to high (3.3 volts, or `1` when
calling [digital read pin](/reference/pins/digital-read-pin)). If one
end of a button is connected to ``P0`` (set to high) and the other end
is connected to ``GND`` (0 volts), then when you press the button,
``P0`` is driven to 0 volts, and the @boardname@ software can detect a
button press.
```sig
pins.setPull(DigitalPin.C9, PinPullMode.PullDown);
```
The pull-up and -down resistors are about 13kOhm.
## Parameters
* ``name``: The @boardname@ hardware pin to configure (``P0``-``P20``)
* ``pull``: The pull to which to set the pin (**down**, **up**, or **none**)
## Example
The following example sets the pull of pin ``P0`` to **up** (high).
```blocks
pins.setPull(DigitalPin.P0, PinPullMode.PullUp);
```
## See also
[@boardname@ | mbed](https://developer.mbed.org/platforms/Microbit/)