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Update waveshare_epaper.rst (#813)

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Got "[E][display:017]: Could not allocate buffer for display!" from logs.
The Waveshare display 7.50inV2 has a resolution of 800x480 pixels and ESP8266 runs out of RAM.
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Nejc 2020-11-08 22:20:39 +01:00 committed by GitHub
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components/display/waveshare_epaper.rst
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@ -81,7 +81,7 @@ Configuration variables:
- ``4.20in`` - ``4.20in``
- ``5.83in`` - ``5.83in``
- ``7.50in`` - ``7.50in``
- ``7.50inV2`` - ``7.50inV2`` (Can't use with an ESP8266 as it runs out of RAM)
- **busy_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The BUSY pin. Defaults to not connected. - **busy_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The BUSY pin. Defaults to not connected.
- **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin. Defaults to not connected. - **reset_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The RESET pin. Defaults to not connected.