INA3221 3-Channel DC Current Sensor =================================== .. seo:: :description: Instructions for setting up INA3221 3-channel DC current sensors. :image: ina3221.jpg :keywords: ina3221 The ``ina3221`` sensor platform allows you to use your INA3221 3-Channel DC Current Sensor (`datasheet `__, `switchdoc`_) sensors with ESPHome. The :ref:`I²C Bus ` is required to be set up in your configuration for this sensor to work. .. figure:: images/ina3221-full.jpg :align: center :width: 50.0% INA3221 3-Channel DC Current Sensor .. _switchdoc: http://www.switchdoc.com/ina3221-breakout-board/ .. figure:: images/ina3221-ui.png :align: center :width: 80.0% .. code-block:: yaml # Example configuration entry sensor: - platform: ina3221 address: 0x40 channel_1: shunt_resistance: 0.1 ohm current: name: "INA3221 Channel 1 Current" power: name: "INA3221 Channel 1 Power" bus_voltage: name: "INA3221 Channel 1 Bus Voltage" shunt_voltage: name: "INA3221 Channel 1 Shunt Voltage" channel_2: # ... channel_3: # ... update_interval: 60s Configuration variables: ------------------------ - **address** (*Optional*, int): Manually specify the I²C address of the sensor. Defaults to ``0x40``. - **channel_1** (*Optional*): The configuration options for the 1st channel. - **shunt_resistance** (*Optional*, float): The value of the shunt resistor on this channel for current calculation. Defaults to ``0.1 ohm``. - **current** (*Optional*): Use the current value on this channel in amperes. All options from :ref:`Sensor `. - **power** (*Optional*): Use the power value on this channel in watts. All options from :ref:`Sensor `. - **bus_voltage** (*Optional*): Use the bus voltage (voltage of the high side contact) value on this channel in V. All options from :ref:`Sensor `. - **shunt_voltage** (*Optional*): Use the shunt voltage (voltage across the shunt resistor) value on this channel in V. All options from :ref:`Sensor `. - **channel_2** (*Optional*): The configuration options for the 2nd channel. Same options as 1st channel. - **channel_3** (*Optional*): The configuration options for the 3rd channel. Same options as 1st channel. - **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``. .. figure:: images/ina3221-pins.jpg :align: center :width: 60.0% Pins on the INA3221. For communication only VS, GND, SCL and SDA need to be connected. Note that all 3 channels share the same GND reference. See Also -------- - :ref:`sensor-filters` - :doc:`ina219` - :apiref:`ina3221/ina3221.h` - `INA3221 Arduino Library `__ by `SwitchDoc Labs `__ - :ghedit:`Edit`