esphome-docs/components/sensor/a02yyuw.rst

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A02YYUW Waterproof Ultrasonic Sensor
====================================
.. seo::
:description: Instructions for setting up A02YYUW waterproof ultrasonic distance sensor in ESPHome.
:image: a02yyuw.jpg
:keywords: ultrasonic, DFRobot, A02YYUW
This sensor allows you to use A02YYUW waterproof ultrasonic sensor by DFRobot
(`datasheet <https://wiki.dfrobot.com/_A02YYUW_Waterproof_Ultrasonic_Sensor_SKU_SEN0311>`__)
with ESPHome to measure distances. This sensor can measure
ranges between 3 centimeters and 450 centimeters with a resolution of 1 milimeter.
Since this sensor reads multiple times per second, :ref:`sensor-filters` are highly recommended.
To use the sensor, first set up an :ref:`uart` with a baud rate of 9600 and connect the sensor to the specified pin.
.. figure:: images/a02yyuw-full.jpg
:align: center
:width: 50.0%
A02YYUW Waterproof Ultrasonic Distance Sensor.
.. code-block:: yaml
# Example configuration entry
sensor:
- platform: "a02yyuw"
name: "Distance"
Configuration variables:
------------------------
- **name** (**Required**, string): The name of the sensor.
- **uart_id** (*Optional*, :ref:`config-id`): The ID of the :ref:`UART bus <uart>` you wish to use for this sensor.
Use this if you want to use multiple UART buses at once.
- All other options from :ref:`Sensor <config-sensor>`.
See Also
--------
- :ref:`sensor-filters`
- :ref:`uart`
- :apiref:`a02yyuw/a02yyuw.h`
- :ghedit:`Edit`