99 lines
3.3 KiB
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99 lines
3.3 KiB
ReStructuredText
.. _hmc5883l:
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HMC5883L Magnetometer
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=====================
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.. seo::
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:description: Instructions for setting up HMC5883L IMU compass sensors.
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:image: hmc5883l.jpg
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:keywords: HMC5883L
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The ``hmc5883l`` allows you to use your HMC5883L triple-axis magnetometers
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(`datasheet <https://cdn-shop.adafruit.com/datasheets/HMC5883L_3-Axis_Digital_Compass_IC.pdf>`__,
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`Adafruit`_) with ESPHome. The :ref:`I²C Bus <i2c>` is required to be set up in your configuration
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for this sensor to work.
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.. figure:: ../../images/hmc5883l.jpg
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:align: center
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:width: 30.0%
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HMC5883L Magnetometer.
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.. _Adafruit: https://www.adafruit.com/product/1746
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: hmc5883l
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address: 0x68
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field_strength_x:
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name: "HMC5883L Field Strength X"
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field_strength_y:
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name: "HMC5883L Field Strength Y"
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field_strength_z:
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name: "HMC5883L Field Strength Z"
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heading:
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name: "HMC5883L Heading"
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oversampling: 1x
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range: 130uT
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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 ``0x1E``.
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- **field_strength_x** (*Optional*): The field strength in microtesla along the X-Axis. All options from
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:ref:`Sensor <config-sensor>`.
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- **field_strength_y** (*Optional*): The field strength in microtesla along the Y-Axis. All options from
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:ref:`Sensor <config-sensor>`.
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- **field_strength_z** (*Optional*): The field strength in microtesla along the Z-Axis. All options from
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:ref:`Sensor <config-sensor>`.
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- **heading** (*Optional*): The heading of the sensor in degrees. All options from
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:ref:`Sensor <config-sensor>`.
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- **oversampling** (*Optional*): The oversampling parameter for the sensor.
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- **range** (*Optional*): The range parameter for the sensor.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
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- **oversampling** (*Optional*): Number of readings to average over for each sample. One of ``1x``, ``2x``,
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``4x``, ``8x``. Defaults to ``1x``.
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- **range** (*Optional*): Select a range / gain preset. This does not affect the scale of the values published
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but allows one to avoid overflows at the cost of reading resolution. Supported values are 88µT, 130µT, 190µT,
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250µT, 400µT, 470µT, 560µT, 810µT. Default range is ±130µT.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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Oversampling Options
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--------------------
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By default, the HMC5883L sensor measures each value 1 times when requesting a new value. You can, however,
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configure this amount. The result is the sensor will take the adverage of the x samples. Possible oversampling values:
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- ``1x`` (default)
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- ``2x``
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- ``4x``
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- ``8x``
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Range Options
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-------------
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By default, the HMC5883L sensor measurement range is 130uT. You can, however,
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configure this amount. Possible values:
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- ``88uT``
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- ``130uT`` (default)
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- ``190uT``
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- ``250uT``
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- ``400uT``
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- ``470uT``
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- ``560uT``
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- ``810uT``
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`template`
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- :apiref:`hmc5883l/hmc5883l.h`
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- `HMC5883L Library <https://github.com/jarzebski/Arduino-HMC5883L>`__ by `Korneliusz Jarzębski <https://github.com/jarzebski>`__
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- :ghedit:`Edit`
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