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87 lines
3.0 KiB
ReStructuredText
INA3221 3-Channel DC Current Sensor
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===================================
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.. seo::
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:description: Instructions for setting up INA3221 3-channel DC current sensors.
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:image: ina3221.jpg
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:keywords: ina3221
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The ``ina3221`` sensor platform allows you to use your INA3221 3-Channel DC Current Sensor
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(`datasheet <http://www.ti.com/lit/ds/symlink/ina3221.pdf>`__,
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`switchdoc`_) sensors with
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ESPHome. The :ref:`I²C Bus <i2c>` is
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required to be set up in your configuration for this sensor to work.
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.. figure:: images/ina3221-full.jpg
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:align: center
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:width: 50.0%
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INA3221 3-Channel DC Current Sensor
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.. _switchdoc: http://www.switchdoc.com/ina3221-breakout-board/
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.. figure:: images/ina3221-ui.png
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:align: center
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:width: 80.0%
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: ina3221
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address: 0x40
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channel_1:
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shunt_resistance: 0.1 ohm
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current:
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name: "INA3221 Channel 1 Current"
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power:
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name: "INA3221 Channel 1 Power"
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bus_voltage:
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name: "INA3221 Channel 1 Bus Voltage"
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shunt_voltage:
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name: "INA3221 Channel 1 Shunt Voltage"
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channel_2:
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# ...
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channel_3:
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# ...
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update_interval: 60s
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Configuration variables:
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------------------------
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- **address** (*Optional*, int): Manually specify the i^2c address of the sensor. Defaults to ``0x40``.
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- **channel_1** (*Optional*): The configuration options for the 1st channel.
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- **shunt_resistance** (*Optional*, float): The value of the shunt resistor on this channel for current calculation.
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Defaults to ``0.1 ohm``.
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- **current** (*Optional*): Use the current value on this channel in amperes. All options from
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:ref:`Sensor <config-sensor>`.
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- **power** (*Optional*): Use the power value on this channel in watts. All options from
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:ref:`Sensor <config-sensor>`.
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- **bus_voltage** (*Optional*): Use the bus voltage (voltage of the high side contact) value on this channel in V.
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All options from :ref:`Sensor <config-sensor>`.
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- **shunt_voltage** (*Optional*): Use the shunt voltage (voltage across the shunt resistor) value on this channel in V.
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All options from :ref:`Sensor <config-sensor>`.
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- **channel_2** (*Optional*): The configuration options for the 2nd channel. Same options as 1st channel.
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- **channel_3** (*Optional*): The configuration options for the 3rd channel. Same options as 1st channel.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
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.. figure:: images/ina3221-pins.jpg
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:align: center
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:width: 60.0%
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Pins on the INA3221. For communication only VS, GND, SCL and SDA need to be connected.
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Note that all 3 channels share the same GND reference.
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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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- :apiref:`sensor/ina3221.h`
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- `INA3221 Arduino Library <https://github.com/switchdoclabs/SDL_Arduino_INA3221>`__ by `SwitchDoc Labs <https://github.com/switchdoclabs>`__
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- :ghedit:`Edit`
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