mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-12-25 17:17:54 +01:00
107 lines
2.7 KiB
ReStructuredText
107 lines
2.7 KiB
ReStructuredText
.. _gpio-binary-sensor:
|
|
|
|
GPIO Binary Sensor
|
|
==================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up GPIO binary sensors with ESPHome.
|
|
:image: pin.svg
|
|
|
|
The GPIO Binary Sensor platform allows you to use any input pin on your
|
|
device as a binary sensor.
|
|
|
|
.. figure:: images/gpio-ui.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin: D2
|
|
name: "Living Room Window"
|
|
device_class: window
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin to periodically check.
|
|
- **name** (**Required**, string): The name of the binary sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
- All other options from :ref:`Binary Sensor <config-binary_sensor>`.
|
|
|
|
Activating internal pullups
|
|
---------------------------
|
|
|
|
If you're hooking up a button without an external pullup or see lots of ON/OFF events
|
|
in the log output all the time, this often means the GPIO pin is floating.
|
|
|
|
For these cases you need to manually enable the pull-up (or pull-down) resistors on the ESP,
|
|
you can do so with the :ref:`Pin Schema <config-pin_schema>`.
|
|
|
|
.. code-block:: yaml
|
|
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin:
|
|
number: D2
|
|
mode:
|
|
input: true
|
|
pullup: true
|
|
name: ...
|
|
|
|
Inverting Values
|
|
----------------
|
|
|
|
Use the ``inverted`` property of the :ref:`Pin Schema <config-pin_schema>` to invert the binary
|
|
sensor:
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin:
|
|
number: D2
|
|
inverted: true
|
|
name: ...
|
|
|
|
Debouncing Values
|
|
-----------------
|
|
|
|
Some binary sensors are a bit unstable and quickly transition between the ON and OFF state while
|
|
they're pressed. To fix this and debounce the signal, use the :ref:`binary sensor filters <binary_sensor-filters>`:
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin: D2
|
|
name: ...
|
|
filters:
|
|
- delayed_on: 10ms
|
|
|
|
Above example will only make the signal go high if the button has stayed high for more than 10ms.
|
|
Alternatively, below configuration will make the binary sensor publish an ON value immediately, but
|
|
will wait 10ms before publishing an OFF value:
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
binary_sensor:
|
|
- platform: gpio
|
|
pin: D2
|
|
name: ...
|
|
filters:
|
|
- delayed_off: 10ms
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`/components/binary_sensor/index`
|
|
- :ref:`config-pin_schema`
|
|
- :apiref:`gpio/binary_sensor/gpio_binary_sensor.h`
|
|
- :ghedit:`Edit`
|