INA219 DC Current Sensor ======================== .. seo:: :description: Instructions for setting up INA219 DC current sensors :image: ina219.jpg :keywords: ina219 The ``ina219`` sensor platform allows you to use your INA219 High Side DC Current Sensor (`datasheet `__, `Adafruit`_) sensors with ESPHome. The :ref:`I²C Bus ` is required to be set up in your configuration for this sensor to work. .. figure:: images/ina219-full.jpg :align: center :width: 50.0% INA219 DC Current Sensor. .. _Adafruit: https://www.adafruit.com/product/904 .. figure:: images/ina219-ui.png :align: center :width: 80.0% .. code-block:: yaml # Example configuration entry sensor: - platform: ina219 address: 0x40 shunt_resistance: 0.1 ohm current: name: "INA219 Current" power: name: "INA219 Power" bus_voltage: name: "INA219 Bus Voltage" shunt_voltage: name: "INA219 Shunt Voltage" max_voltage: 32.0V max_current: 3.2A update_interval: 60s Configuration variables: ------------------------ - **address** (*Optional*, int): Manually specify the I²C address of the sensor. Defaults to ``0x40``. - **shunt_resistance** (*Optional*, float): The value of the shunt resistor on the board for current calculation. Defaults to ``0.1 ohm``. - **max_voltage** (*Optional*, float): The maximum bus voltage you are expecting. ESPHome will use this to configure the sensor optimally. Defaults to ``32V`` (the max). - **max_current** (*Optional*, float): The maximum current you are expecting. ESPHome will use this to configure the sensor optimally. Defaults to ``3.2A``. - **current** (*Optional*): Use the current value of the sensor in amperes. All options from :ref:`Sensor `. - **power** (*Optional*): Use the power value of the sensor in watts. All options from :ref:`Sensor `. - **bus_voltage** (*Optional*): Use the bus voltage (voltage of the high side contact) value of the sensor in V. All options from :ref:`Sensor `. - **shunt_voltage** (*Optional*): Use the shunt voltage (voltage across the shunt resistor) value of the sensor in V. All options from :ref:`Sensor `. - **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``. See Also -------- - :ref:`sensor-filters` - :doc:`ina3221` - :apiref:`ina219/ina219.h` - `INA219 Arduino Library `__ by `Adafruit `__ - :ghedit:`Edit`