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* Small changes from proofreading. * Proofreading changes. * Correction from travis checks * Update guides/getting_started_command_line.rst Co-Authored-By: Otto Winter <otto@otto-winter.com> * More proofreading changes. * More proofreading changes. * Minor corrections
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65 lines
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NodeMCU ESP32
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=============
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.. seo::
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:description: Instructions for using NodeMCU ESP32 boards in ESPHome and a description of all their pins and uses.
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:image: nodemcu_esp32.jpg
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The NodeMCU ESP32 board (in some cases also known as ESP32-DevkitC)
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is fully supported by ESPHome. Simply select ``ESP32`` when
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the ESPHome wizard asks you for your platform and |nodemcu-32s|_ as the board type.
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.. |nodemcu-32s| replace:: ``nodemcu-32s``
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.. _nodemcu-32s: http://docs.platformio.org/en/latest/platforms/espressif32.html#nodemcu
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.. code-block:: yaml
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# Example configuration entry
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esphome:
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name: livingroom
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platform: ESP32
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board: nodemcu-32s
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The ESP32 boards often use the internal GPIO pin numbering on the board, this means that
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you don't have to worry about other kinds of pin numberings, yay!
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.. figure:: images/nodemcu_esp32-full.jpg
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:align: center
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Pins on the NodeMCU ESP32 development board.
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Note that in certain conditions you *can* use the pins marked as ``INTERNAL`` in the above image.
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- ``GPIO0`` is used to determine the boot mode on startup. It should therefore not be pulled LOW
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on startup to avoid booting into flash mode. You can, however, still use this as an output pin.
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- ``GPIO34``-``GPIO39`` can not be used as outputs (even though GPIO stands for "general purpose input
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**output**"...).
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- ``GPIO32``-``GPIO39``: These pins can be used with the :doc:`/components/sensor/adc` to measure
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voltages.
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- ``GPIO2``: This pin is connected to the blue LED on the board as seen in the picture above. It also supports
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the :doc:`touch pad binary sensor </components/binary_sensor/esp32_touch>` as do the other
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pins marked ``touch`` in the above image.
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- ``5V`` is connected to the 5V rail from the USB bus and can be used to power the board. Note that
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the UART chip is directly connected to this rail and you therefore **cannot** supply other voltages
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into this pin.
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.. code-block:: yaml
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# Example configuration entry
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esphome:
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name: livingroom
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platform: ESP32
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board: nodemcu-32s
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binary_sensor:
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- platform: gpio
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name: "Pin GPIO23"
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pin: GPIO23
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See Also
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--------
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- :doc:`esp32`
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- :doc:`nodemcu_esp8266`
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- :ghedit:`Edit`
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