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94 lines
3.3 KiB
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94 lines
3.3 KiB
ReStructuredText
INA226 DC current and power sensor
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==================================
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.. seo::
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:description: Instructions for setting up INA226 DC current and power sensors
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:image: ina226.jpg
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:keywords: ina226
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The ``ina226`` sensor platform allows you to use your INA226 DC Current and Power Sensor
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(`datasheet <http://www.ti.com/lit/ds/symlink/ina226.pdf>`__, `eBay`_) sensors with ESPHome.
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The :ref:`I²C Bus <i2c>` is required to be set up in your configuration for this sensor to work.
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.. figure:: images/ina226-full.jpg
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:align: center
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:width: 50.0%
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INA226 DC Current and Power Sensor.
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.. _eBay: https://www.ebay.com/sch/i.html?_nkw=INA226
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: ina226
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address: 0x40
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shunt_resistance: 0.1 ohm
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max_current: 3.2A
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# adc time used for both, Bus Voltage and Shunt Voltage
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adc_time: 140us
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adc_averaging: 128
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update_interval: 60s
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current:
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name: "INA226 Current"
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power:
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name: "INA226 Power"
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bus_voltage:
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name: "INA226 Bus Voltage"
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shunt_voltage:
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name: "INA226 Shunt Voltage"
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: ina226
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address: 0x40
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adc_time:
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voltage: 140us
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current: 332us
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Configuration variables:
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------------------------
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- **address** (*Optional*, integer): Manually specify the I²C address of the sensor. Defaults to ``0x40``.
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- **shunt_resistance** (*Optional*, float): The value of the shunt resistor on the board for current calculation.
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Defaults to ``0.1 ohm``.
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- **max_current** (*Optional*, float): The maximum current you are expecting. ESPHome will use this to
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configure the sensor optimally. Defaults to ``3.2A``.
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- **adc_time** (*Optional*, :ref:`config-time` or both of the following nested options): The time in microseconds to perform a single ADC conversion.
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Defaults to ``1100us``. Valid values are ``140us``, ``204us``, ``332us``, ``588us``, ``1100us``, ``2116us``,
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``4156us``, ``8244us``.
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- **voltage** (**Required**, :ref:`config-time`) ADC conversion time for Bus Voltage
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- **current** (**Required**, :ref:`config-time`) ADC conversion time for Shunt Voltage (Current measurement)
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- **adc_averaging** (*Optional*, integer): Selects ADC sample averaging count. Defaults to ``4``. Valid values are
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``1``, ``4``, ``16``, ``64``, ``128``, ``256``, ``512``, ``1024``.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
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Sensors
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-------
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The component offers four sensors. You can configure all or any subset of them. Each configured sensor
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is reported separately on each update_interval. The ``name`` option is required for each sensor configured.
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All other options from :ref:`Sensor <config-sensor>`.
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- **current** (*Optional*): Calculated current output, Amperes.
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- **power** (*Optional*): Calculated power output, Watts.
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- **bus_voltage** (*Optional*): Bus voltage output (voltage of the high side contact), Volts.
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- **shunt_voltage** (*Optional*): Shunt voltage (voltage across the shunt resistor) value of the sensor, Volts.
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`ina219`
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- :doc:`ina3221`
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- :apiref:`ina226/ina226.h`
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- `INA226 Arduino Library <https://github.com/SV-Zanshin/INA226>`__
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- :ghedit:`Edit`
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