esphome-docs/components/sensor/max6675.rst
2021-11-22 16:14:27 +01:00

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MAX6675 K-Type Thermocouple Temperature Sensor
==============================================
.. seo::
:description: Instructions for setting up MAX6675 Thermocouple temperature sensors.
:image: max6675.jpg
The ``max6675`` temperature sensor allows you to use your MAX6675 thermocouple
temperature sensor (`datasheet <https://datasheets.maximintegrated.com/en/ds/MAX6675.pdf>`__, `SainSmart`_) with ESPHome
.. figure:: images/max6675-full.jpg
:align: center
:width: 60.0%
MAX6675 K-Type Thermocouple Temperature Sensor.
.. _SainSmart: https://www.sainsmart.com/products/max6675-module-k-type-thermocouple-thermocouple-sensor-temperature-0-1024-for-arduino
As the communication with the MAX6675 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-block:: yaml
# Example configuration entry
spi:
miso_pin: D0
clk_pin: D1
sensor:
- platform: max6675
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>`.
See Also
--------
- :ref:`sensor-filters`
- :doc:`dallas`
- :doc:`dht`
- :doc:`adc`
- :doc:`sht3xd`
- `MAX6675 Library <https://github.com/adafruit/MAX6675-library>`__ by `Adafruit <https://www.adafruit.com/>`__
- :apiref:`max6675/max6675.h`
- :ghedit:`Edit`