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Brightness support for Nextion display (#668) 

* add brightness support

* Update components/display/nextion.rst

Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>
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vxider 2020-07-13 02:15:33 +08:00 committed by GitHub
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@ -39,6 +39,8 @@ Configuration variables:
- **uart_id** (*Optional*, :ref:`config-id`): The ID of the :ref:`UART bus <uart>` you wish to use for this display.
Use this if you want to use multiple UART buses at once.
- **brightness** (*Optional*, percentage): Set the screen brightness. Must be in range
``0%`` to ``100%`` or ``0.0`` to ``1.0``. Defaults to ``100%``.
- **lambda** (*Optional*, :ref:`lambda <config-lambda>`): The lambda to use for rendering the content on the nextion display.
See :ref:`display-nextion_lambda` for more information.
- **update_interval** (*Optional*, :ref:`config-time`): The interval to call the lambda to update the display.