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57 lines
2.1 KiB
ReStructuredText
57 lines
2.1 KiB
ReStructuredText
MAX31855 K-Type Thermocouple Temperature Sensor
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===============================================
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.. seo::
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:description: Instructions for setting up MAX31855 Thermocouple temperature sensors.
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:image: max31855.jpg
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The ``max31855`` temperature sensor allows you to use your MAX31855 thermocouple
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temperature sensor (`datasheet <https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf>`__) with ESPHome
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As the communication with the MAX31855 is done using SPI, you need
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to have an :ref:`SPI bus <spi>` in your configuration with the **miso_pin** set (MOSI is not required).
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Connect ``GND`` to ``GND``, ``VCC`` to ``3.3V`` and the other three ``MISO`` (or ``SO`` for short),
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``CS`` and ``CLOCK`` (or ``CLK``) to free GPIO pins.
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.. figure:: images/temperature.png
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:align: center
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:width: 80.0%
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.. code:: yaml
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# Example configuration entry
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spi:
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miso_pin: D0
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clk_pin: D1
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sensor:
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- platform: max31855
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name: "Living Room Temperature"
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cs_pin: D2
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update_interval: 60s
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Configuration variables:
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------------------------
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- **name** (**Required**, string): The name for the temperature sensor.
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- **cs_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The Chip Select pin of the SPI interface.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
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- **reference_temperature** (*Optional*, :ref:`Sensor <config-sensor>`): Access the internal temperature sensor of the MAX31855. Requires a **name** and/or **id**.
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- **spi_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`SPI Component <spi>` if you want to use multiple SPI buses.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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- All other options from :ref:`Sensor <config-sensor>`.
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`dallas`
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- :doc:`dht`
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- :doc:`adc`
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- :doc:`max6675`
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- :doc:`max31865`
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- `MAX31855 Library <https://github.com/adafruit/Adafruit-MAX31855-library>`__ by `Adafruit <https://www.adafruit.com/>`__
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- :apiref:`max31855/max31855.h`
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- :ghedit:`Edit`
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