esphome-docs/components/sensor/max31855.rst
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MAX31855 K-Type Thermocouple Temperature Sensor
===============================================
.. seo::
:description: Instructions for setting up MAX31855 Thermocouple temperature sensors.
:image: max31855.jpg
The ``max31855`` temperature sensor allows you to use your max31855 thermocouple
temperature sensor (`datasheet <https://datasheets.maximintegrated.com/en/ds/MAX31855.pdf>`__) with esphomelib
As the communication with the MAX66775 is done using SPI, you need
to have an :ref:`spi bus <spi>` in your configuration with the **miso_pin** set (mosi is not required).
Connect ``GND`` to ``GND``, ``VCC`` to ``3.3V`` and the other three ``MISO`` (or ``SO`` for short),
``CS`` and ``CLOCK`` (or ``CLK``) to free GPIO pins.
.. figure:: images/temperature.png
:align: center
:width: 80.0%
.. code:: yaml
# Example configuration entry
spi:
miso_pin: D0
clk_pin: D1
sensor:
- platform: max31855
name: "Living Room Temperature"
cs_pin: D2
update_interval: 60s
Configuration variables:
------------------------
- **name** (**Required**, string): The name for the temperature sensor.
- **cs_pin** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The Chip Select pin of the SPI interface.
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
- **spi_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`SPI Component <spi>` if you want
to use multiple SPI buses.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
- All other options from :ref:`Sensor <config-sensor>` and :ref:`MQTT Component <config-mqtt-component>`.
See Also
--------
- :ref:`sensor-filters`
- :doc:`dallas`
- :doc:`dht`
- :doc:`adc`
- :doc:`sht3xd`
- :doc:`max6675`
- `MAX31855 Library <https://github.com/adafruit/Adafruit-MAX31855-library>`__ by `Adafruit <https://www.adafruit.com/>`__
- :apiref:`sensor/max31855_sensor.h`
- :ghedit:`Edit`
.. disqus::