esphome-docs/components/sensor/hydreon_rgxx.rst

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Hydreon Rain Sensor
===================
.. seo::
:description: Instructions for setting up Hydreon rain sensors
:image: hydreon_rg9.jpg
:keywords: hydreon
The ``hydreon_rgxx`` sensor platform allows you to use rain sensors by Hydreon. Currently supported are the RG-9 and RG-15 (`rainsensors <https://rainsensors.com/products/model-comparison/>`_) sensors.
These optical rain sensors use a UART connection at 3.3V. The :ref:`UART <uart>` is
required to be set up in your configuration for this sensor to work.
.. figure:: images/hydreon_rg9_full.jpg
:align: center
:width: 50.0%
Hydreon RG-9 Rain Sensor. Image by `Hydreon <https://rainsensors.com/products/rg-9/>`_.
.. code-block:: yaml
# Example RG-9 entry
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uart:
rx_pin: GPIO16
tx_pin: GPIO17
baud_rate: 9600
sensor:
- platform: hydreon_rgxx
model: "RG_9"
update_interval: 60s
moisture:
name: "rain"
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expire_after: 120s
binary_sensor:
- platform: hydreon_rgxx
too_cold:
name: "too cold"
.. code-block:: yaml
# Example RG-15 entry
uart:
rx_pin: GPIO16
tx_pin: GPIO17
baud_rate: 9600
sensor:
- platform: hydreon_rgxx
model: "RG_15"
update_interval: 60s
acc:
name: "rain"
event_acc:
name: "rain event"
total_acc:
name: "rain total"
r_int:
name: "rain intensity"
Configuration variables:
------------------------
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- **model** (**Required**, int): Specify which rain sensor you have connected. Must be either ``RG_9`` or ``RG_15``.
- **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`UART Component <uart>` if you want
to use multiple UART buses.
- **moisture** (*Optional*): Rain intensity level from 0-7. Only on RG-9.
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- **name** (**Required**, string): The name for the sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
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- **acc** (*Optional*): Amount of rain since last message (see ``update_interval``), in ``mm``. Only on RG-15.
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- **name** (**Required**, string): The name for the sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
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- **event_acc** (*Optional*): Amount of rain for this event (i.e. since it last stopped raining), in ``mm``. Only on RG-15.
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- **name** (**Required**, string): The name for the sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
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- **total_acc** (*Optional*): Total amount of rain this sensor has ever measured, in ``mm``. Only on RG-15.
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- **name** (**Required**, string): The name for the sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
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- **r_int** (*Optional*): Current rain intensity in ``mm/h``. Only on RG-15.
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- **name** (**Required**, string): The name for the sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
See Also
--------
- :ref:`sensor-filters`
- :doc:`../binary_sensor/hydreon_rgxx`
- `Hydreon RG-9 <https://rainsensors.com/products/rg-9/>`__
- `Hydreon RG-15 <https://rainsensors.com/products/rg-15/>`__
- `RG-15 V1.000 manual <https://rainsensors.com/wp-content/uploads/sites/3/2020/07/rg-15_instructions_sw_1.000.pdf>`__
- `RG-9 V1.000 manual <https://rainsensors.com/wp-content/uploads/sites/3/2021/03/2020.08.25-rg-9_instructions.pdf>`__
- :ghedit:`Edit`