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62 lines
3.3 KiB
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ESP32 Touch Pad Hub
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===================
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.. seo::
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:description: Instructions for setting up the touch pad feature on the ESP32.
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:image: touch.svg
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The ``esp32_touch`` component creates a global hub for detecting touches on
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the eight touch pads of the ESP32 as :doc:`binary senors </esphomeyaml/components/binary_sensor/esp32_touch>`.
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.. code:: yaml
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# Example configuration entry
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esp32_touch:
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setup_mode: False
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binary_sensor:
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- platform: esp32_touch
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name: "ESP32 Touch Pad GPIO27"
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pin: GPIO27
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threshold: 1000
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Configuration variables:
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------------------------
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- **setup_mode** (*Optional*, boolean): Whether debug messages with the touch pad value should
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be displayed in the logs. Useful for finding out suitable thresholds for the binary sensors, but
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spam the logs. See :doc:`setting up touch pads </esphomeyaml/components/binary_sensor/esp32_touch>`
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for more information. Defaults to false.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID for code generation.
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Advanced options (the defaults are usually quite good, but if you're having accuracy issues, use these):
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- **iir_filter** (*Optional*, :ref:`config-time`): Optionally set up an
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`Infinite Impulse Response <https://en.wikipedia.org/wiki/Infinite_impulse_response>`__
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filter should be applied to all touch pads. This can increase the accuracy of the touch pads a lot, but
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higher values decrease the response time. A good value to start with is ``10ms``. Default is no IIR filter.
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- **sleep_duration** (*Optional*, :ref:`config-time`): Set a time period
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denoting the amount of time the touch peripheral should sleep between measurements. This can decrease
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power usage but make the sensor slower. Default is about 27 milliseconds.
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- **measurement_duration** (*Optional*, :ref:`config-time`): Set the conversion
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time for all touch pads. A longer conversion time means that more charge/discharge cycles of the touch pad
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can be performed, therefore increasing accuracy. Default is about 8ms, the maximum amount.
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- **low_voltage_reference** (*Optional*): The low voltage reference to use for the charge cycles. See
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the `esp-idf docs <https://esp-idf.readthedocs.io/en/latest/api-reference/peripherals/touch_pad.html#optimization-of-measurements>`__
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for a nice explanation of this. One of ``0.5V``, ``0.6V``, ``0.7V``, ``0.8V``. Default is ``0.5V``.
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- **high_voltage_reference** (*Optional*): The high voltage reference to use for the charge cycles. See
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the `esp-idf docs <https://esp-idf.readthedocs.io/en/latest/api-reference/peripherals/touch_pad.html#optimization-of-measurements>`__
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for a nice explanation of this. One of ``2.4V``, ``2.5V``, ``2.6V``, ``2.7V``. Default is ``2.7V``.
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- **voltage_attenuation** (*Optional*): The voltage attenuation to use for the charge cycles. See
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the `esp-idf docs <https://esp-idf.readthedocs.io/en/latest/api-reference/peripherals/touch_pad.html#optimization-of-measurements>`__
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for a nice explanation of this. One of ``1.5V``, ``1V``, ``0.5V``, ``0V``. Default is ``0V``.
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See Also
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--------
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- :doc:`binary_sensor/esp32_touch`
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- :doc:`API Reference </api/binary_sensor/esp32_touch>`
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- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/esp32_touch.rst>`__
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.. disqus::
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