mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-12-28 17:48:35 +01:00
70 lines
2.4 KiB
ReStructuredText
70 lines
2.4 KiB
ReStructuredText
MAX31856 Thermocouple Temperature Sensor
|
|
========================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up MAX31856 Thermocouple temperature sensors.
|
|
:image: max31865.png
|
|
|
|
The ``MAX31856`` temperature sensor allows you to use your MAX31856 Thermocouple
|
|
temperature sensor (`datasheet <https://datasheets.maximintegrated.com/en/ds/MAX31856.pdf>`__) with ESPHome
|
|
|
|
.. figure:: images/max31865-full.jpg
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
MAX31856 Sensor. Image by `Adafruit`_
|
|
|
|
.. _Adafruit: https://www.adafruit.com/product/3263
|
|
|
|
As the communication with the MAX31856 is done using SPI, you need
|
|
to have an :ref:`spi bus <spi>` in your configuration with both **miso_pin** and **mosi_pin** set.
|
|
|
|
- ``VIN`` connects to 5V (``3V3`` will output 3.3V), or directly connect ``3V3`` to 3.3V
|
|
- ``3Vo`` is not used by ESPHome
|
|
- ``GND`` connects to ground
|
|
- ``CLK`` connects to the SPI **clk_pin**
|
|
- ``SDO`` connects to the SPI **miso_pin**
|
|
- ``SDI`` connects to the SPI **mosi_pin**
|
|
- ``CS`` connects to a free GPIO pin
|
|
- ``FLT`` is not used by ESPHome
|
|
- ``DRDY`` is not used by ESPHome
|
|
|
|
.. code:: yaml
|
|
|
|
# Example configuration entry
|
|
spi:
|
|
clk_pin: GPIO18
|
|
miso_pin: GPIO19
|
|
mosi_pin: GPIO23
|
|
|
|
sensor:
|
|
- platform: MAX31856
|
|
name: "BBQ Temperature"
|
|
icon: "mdi:hamburger"
|
|
cs_pin: GPIO17
|
|
|
|
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``.
|
|
- **mains_filter** (*Optional*, string): The mains power frequency to reject (``50 Hz`` or ``60 Hz``). Defaults to ``60 Hz``.
|
|
- **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:`max6675`
|
|
- :doc:`max31855`
|
|
- :doc:`max31865`
|
|
- `MAX31856 Library <https://github.com/adafruit/Adafruit_MAX31856>`__ by `Adafruit <https://www.adafruit.com/>`__
|
|
- :apiref:`MAX31856/MAX31856.h`
|
|
- :ghedit:`Edit`
|