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50 lines
1.7 KiB
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50 lines
1.7 KiB
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ESP32 Hall Sensor
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=================
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The ``esp32_hall`` sensor platform allows you to use the integrated
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`hall effect sensor <https://en.wikipedia.org/wiki/Hall_effect_sensor>`__ of the
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ESP32 chip to measure the magnitude and direction of magnetic field around the
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chip (with quite poor accuracy).
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Please make sure that nothing is connected to pins ``GPIO36`` and ``GPIO39`` if this
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component is enabled, as those pins are used for the internal low-noise amplifier used
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by the hall sensor.
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.. figure:: images/esp32_hall-ui.png
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:align: center
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:width: 80.0%
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.. code:: yaml
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# Example configuration entry
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sensor:
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- platform: esp32_hall
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name: "ESP32 Hall Sensor"
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update_interval: 15s
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Configuration variables:
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~~~~~~~~~~~~~~~~~~~~~~~~
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- **name** (**Required**, string): The name of the hall effect sensor.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval
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to check the sensor. Defaults to ``15s``. See :ref:`sensor-default_filter`.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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- All other options from :ref:`Sensor <config-sensor>` and :ref:`MQTT Component <config-mqtt-component>`.
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.. warning::
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The values this sensor outputs were only calibrated with a few magnets and no real "truth" sensor.
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Therefore the values could very well be off by orders of magnitude. Besides, this sensor should
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only be used to detect sudden high changes in the magnetic field.
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If you have a real magnetic field calibration setup and want to contribute your values to esphomelib,
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please feel free to do so 😺.
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See Also
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^^^^^^^^
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- :ref:`sensor-filters`
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- :doc:`adc`
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- :doc:`/esphomeyaml/devices/esp32`
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- :doc:`API Reference </api/sensor/adc-sensor>`
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