esphome-docs/components/sensor/integration.rst
2022-06-30 16:48:01 +12:00

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Integration Sensor
==================
.. seo::
:description: Instructions for setting up sensors that integrate values over time.
:image: sigma.svg
The ``integration`` sensor is a helper sensor that can integrate values from other sensors over
time. This can for example be useful to integrate the values of a water flow sensor (in m^3/s) over
time (result is in m^3).
This component can be considered a more-generic version of the :doc:`total_daily_energy`.
.. code-block:: yaml
# Example configuration entry
sensor:
- platform: integration
name: "Total Daily Energy"
sensor: my_flow_meter
time_unit: min
# The sensor to integrate, can be any power sensor
- platform: pulse_counter
# ...
id: my_flow_meter
Configuration variables:
------------------------
- **sensor** (**Required**, :ref:`config-id`): The ID of the sensor to integrate over time.
- **name** (**Required**, string): The name of the integration sensor.
- **time_unit** (**Required**, string): The time unit to integrate with, one of
``ms``, ``s``, ``min``, ``h`` or ``d``.
- **integration_method** (*Optional*, string): The integration method to use. One of
``trapezoid``, ``left`` or ``right``. Defaults to ``trapezoid``.
- **restore** (*Optional*, boolean): Whether to store the intermediate result on the device so
that the value can be restored upon power cycle or reboot.
Warning: this option can wear out your flash. Defaults to ``false``.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
- All other options from :ref:`Sensor <config-sensor>`.
.. _sensor-integration-reset_action:
``sensor.integration.reset`` Action
-----------------------------------
This :ref:`Action <config-action>` allows you to reset the value of the integration sensor
to zero. For example this can be used to reset the integration sensor to zero at midnight with
a time-based automation.
.. code-block:: yaml
on_...:
- sensor.integration.reset: my_integration_sensor
See Also
--------
- :ref:`sensor-filters`
- :doc:`total_daily_energy`
- :doc:`/cookbook/power_meter`
- :apiref:`integration/integration_sensor.h`
- :ghedit:`Edit`