Tuya automation and text sensor support (#1684)

components/text_sensor/tuya.rst

@@ -0,0 +1,35 @@
+Tuya Text Sensor
+================
+
+.. seo::
+    :description: Instructions for setting up a Tuya device sensor.
+    :image: tuya.png
+
+The ``tuya`` text sensor platform creates a sensor from a tuya component
+and requires :doc:`/components/tuya` to be configured.
+
+You can create the text sensor as follows:
+
+.. code-block:: yaml
+
+    # Create a sensor
+    text_sensor:
+      - platform: "tuya"
+        name: "MyTextSensor"
+        sensor_datapoint: 18
+
+Configuration variables:
+------------------------
+
+- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
+- **name** (**Required**, string): The name of the sensor.
+- **sensor_datapoint** (**Required**, int): The datapoint id number of the sensor.
+- All other options from :ref:`Text Sensor <config-text_sensor>`.
+
+See Also
+--------
+
+- :doc:`/components/tuya`
+- :doc:`/components/text_sensor/index`
+- :apiref:`tuya/text_sensor/tuya_text_sensor.h`
+- :ghedit:`Edit`

components/tuya.rst

@@ -60,6 +60,70 @@ Configuration variables:
 
 - **ignore_mcu_update_on_datapoints** (*Optional*, list): A list of datapoints to ignore MCU updates for.  Useful for certain broken/erratic hardware and debugging.
 
+Automations:
+
+- **on_datapoint_update**: (*Optional*): An automation to perform when a Tuya datapoint update is received. See :ref:`tuya-on_datapoint_update`.
+
+Tuya Automation
+---------------
+
+.. _tuya-on_datapoint_update:
+
+``on_datapoint_update``
+***********************
+
+This automation will be triggered when a a Tuya datapoint update is received. 
+A variable ``x`` is passed to the automation for use in lambdas. 
+The type of ``x`` variable is depending on ``datapoint_type`` configuration variable:
+
+- *raw*: ``x`` is ``std::vector<uint8_t>``
+- *string*: ``x`` is ``std::string``
+- *bool*: ``x`` is ``bool``
+- *int*: ``x`` is ``int``
+- *uint*: ``x`` is ``uint32_t``
+- *enum*: ``x`` is ``uint8_t``
+- *bitmask*: ``x`` is ``uint32_t``
+- *any*: ``x`` is :apistruct:`tuya::TuyaDatapoint`
+
+.. code-block:: yaml
+
+    tuya:
+      on_datapoint_update:
+        - sensor_datapoint: 6
+          datapoint_type: raw
+          then:
+            - lambda: |-
+                ESP_LOGD("main", "on_datapoint_update %s", hexencode(x).c_str());
+                id(voltage).publish_state((x[0] << 8 | x[1]) * 0.1);
+                id(current).publish_state((x[3] << 8 | x[4]) * 0.001);
+                id(power).publish_state((x[6] << 8 | x[7]) * 0.1);
+        - sensor_datapoint: 7 # sample dp
+          datapoint_type: string
+          then:
+            - lambda: |-
+                ESP_LOGD("main", "on_datapoint_update %s", x.c_str());
+        - sensor_datapoint: 8 # sample dp
+          datapoint_type: bool
+          then:
+            - lambda: |-
+                ESP_LOGD("main", "on_datapoint_update %s", ONOFF(x)); 
+        - sensor_datapoint: 6
+          datapoint_type: any # this is optional
+          then:
+            - lambda: |-
+                if (x.type == tuya::TuyaDatapointType::RAW) {
+                  ESP_LOGD("main", "on_datapoint_update %s", hexencode(x.value_raw).c_str());
+                } else {
+                  ESP_LOGD("main", "on_datapoint_update %hhu", x.type);
+                }
+
+Configuration variables:
+
+- **sensor_datapoint** (*Required*, int): The datapoint id number of the sensor.
+- **datapoint_type** (*Required*, string): The datapoint type one of *raw*, *string*, *bool*, *int*, *uint*, *enum*, *bitmask* or *any*.
+- See :ref:`Automation <automation>`.
+
+
 See Also
 --------
 
@@ -69,5 +133,6 @@ See Also
 - :doc:`/components/climate/tuya`
 - :doc:`/components/binary_sensor/tuya`
 - :doc:`/components/sensor/tuya`
+- :doc:`/components/text_sensor/tuya`
 - :apiref:`tuya/tuya.h`
 - :ghedit:`Edit`

index.rst

@@ -524,6 +524,7 @@ Text Sensor Components
     Template Text Sensor, components/text_sensor/template, description.svg
     Custom Text Sensor, components/text_sensor/custom, language-cpp.svg
     Nextion Text Sensor, components/text_sensor/nextion, nextion.jpg
+    Tuya Text Sensor, components/text_sensor/tuya, tuya.png
 
 Climate Components
 ------------------