esphome-docs/components/ethernet.rst

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Ethernet Component
==================
.. seo::
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:description: Instructions for setting up the Ethernet configuration for your ESP32 node in ESPHome.
:image: ethernet.svg
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:keywords: Ethernet, ESP32
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This ESPHome component enables *wired* Ethernet connections for ESP32s.
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Ethernet for ESP8266 is not supported.
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This component and the Wi-Fi component may **not** be used simultaneously, even if both are physically available.
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.. code-block:: yaml
# Example configuration entry
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 0
# Optional manual IP
manual_ip:
static_ip: 10.0.0.42
gateway: 10.0.0.1
subnet: 255.255.255.0
Configuration variables:
------------------------
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- **type** (**Required**, string): The type of LAN chipset/phy.
Supported chipsets are:
- ``LAN8720``
- ``RTL8201``
- ``DP83848``
- ``IP101``
- ``JL1101``
- ``KSZ8081``
- ``KSZ8081RNA``
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- **mdc_pin** (**Required**, :ref:`config-pin`): The MDC pin of the board.
Usually this is ``GPIO23``.
- **mdio_pin** (**Required**, :ref:`config-pin`): The MDIO pin of the board.
Usually this is ``GPIO18``.
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- **clk_mode** (*Optional*, string): The clock mode of the data lines. See your board's
datasheet for more details. Must be one of the following values:
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- ``GPIO0_IN`` (Default) - External clock
- ``GPIO0_OUT`` - Internal clock
- ``GPIO16_OUT`` - Internal clock
- ``GPIO17_OUT`` - Internal clock
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- **phy_addr** (*Optional*, int): The PHY addr type of the Ethernet controller. Defaults to 0.
- **power_pin** (*Optional*, :ref:`Pin Schema <config-pin_schema>`): The pin controlling the
power/reset status of the Ethernet controller. Leave unspecified for no power pin (default).
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- **manual_ip** (*Optional*): Manually configure the static IP of the node.
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- **static_ip** (**Required**, IPv4 address): The static IP of your node.
- **gateway** (**Required**, IPv4 address): The gateway of the local network.
- **subnet** (**Required**, IPv4 address): The subnet of the local network.
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- **dns1** (*Optional*, IPv4 address): The main DNS server to use.
- **dns2** (*Optional*, IPv4 address): The backup DNS server to use.
- **use_address** (*Optional*, string): Manually override what address to use to connect
to the ESP. Defaults to auto-generated value. For example, if you have changed your
static IP and want to flash OTA to the previously configured IP address.
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- **domain** (*Optional*, string): Set the domain of the node hostname used for uploading.
For example, if it's set to ``.local``, all uploads will be sent to ``<HOSTNAME>.local``.
Defaults to ``.local``.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
.. note::
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If your Ethernet board is not designed with an ESP32 built in, it's common to attempt
to use flying leads, dupont wires, etc. to connect the Ethernet controller to the ESP32.
This approach is likely to fail, however, as the Ethernet interface uses a high frequency
clock signal that will not travel reliably over these types of connections. For more
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information and wiring details refer to the link in the *See also* section.
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Configuration examples
----------------------
**Olimex ESP32-POE**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO17_OUT
phy_addr: 0
power_pin: GPIO12
.. note::
WROVER version of Olimex POE cards change CLK to ping GPIO0, configuration must be `clk_mode: GPIO0_OUT`.
**Olimex ESP32-EVB**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 0
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**Olimex ESP32-GATEWAY** and **LILYGO TTGO T-Internet-POE ESP32-WROOM LAN8270A**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
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clk_mode: GPIO17_OUT
phy_addr: 0
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**LILYGO TTGO T-Internet ESP32-WROVER-E LAN8270**:
.. code-block:: yaml
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ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
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clk_mode: GPIO0_OUT
phy_addr: 0
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power_pin: GPIO04
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**Wireless Tag WT32-ETH01** and **SMLIGHT SLZB-06 PoE Zigbee**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO16
**M5Stack PoESP32** and **ESP32-Ethernet-Kit**:
.. code-block:: yaml
ethernet:
type: IP101
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 1
power_pin: GPIO5
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**AiThinker ESP32-G Gateway**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO17_OUT
phy_addr: 1
power_pin: GPIO5
**wESP32**:
.. code-block:: yaml
# for board up to rev.5
ethernet:
type: LAN8720
mdc_pin: GPIO16
mdio_pin: GPIO17
clk_mode: GPIO0_IN
phy_addr: 0
# for board rev.7 and up
ethernet:
type: RTL8201
mdc_pin: GPIO16
mdio_pin: GPIO17
clk_mode: GPIO0_IN
phy_addr: 0
.. note::
Revision 5 and below of the wESP32 board use the LAN8720 Ethernet PHY. Revision 7 and newer of it use the RTL8201 Ethernet PHY. Support for RTL8201 is available from ESPHome version 2022.12 upwards.
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**OpenHacks LAN8720**:
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.. code-block:: yaml
ethernet:
type: LAN8720
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mdc_pin: GPIO23
mdio_pin: GPIO18
phy_addr: 1
.. note::
This board has an issue that might cause the ESP32 to boot in program mode. When testing, make sure
you are monitoring the serial output and reboot the device several times to see if it boots into the
program properly.
**Esp32-Stick-Eth** and **Esp32-Stick-PoE-P** and **Esp32-Stick-PoE-A**:
.. code-block:: yaml
ethernet:
type: LAN8720
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO17_OUT
phy_addr: 1
**LILYGO T-ETH-Lite**:
.. code-block:: yaml
ethernet:
type: RTL8201
mdc_pin: GPIO23
mdio_pin: GPIO18
clk_mode: GPIO0_IN
phy_addr: 0
power_pin: GPIO12
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See Also
--------
- :doc:`network`
- :doc:`text_sensor/ethernet_info`
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- :apiref:`ethernet/ethernet_component.h`
- `ESP32 Ethernet PHY connection info <https://pcbartists.com/design/embedded/esp32-ethernet-phy-schematic-design/>`__
- :ghedit:`Edit`