Add WTS01 temperature sensor documentation and image

components/index.rst

@@ -240,6 +240,7 @@ Air Quality
     SPS30, components/sensor/sps30, sps30.jpg, Particulate
     T6613/15, components/sensor/t6615, t6615.jpg, CO2
     ZyAura, components/sensor/zyaura, zgm053.jpg, CO2 & Temperature & Humidity
+    WTS01, components/sensor/wts01, wts01.png, Temperature
 
 Analogue
 ********

components/sensor/wts01.rst

@@ -0,0 +1,78 @@
+WTS01 Temperature Sensor
+========================
+
+.. seo::
+    :description: Instructions for setting up WTS01 temperature sensors in ESPHome.
+    :image: wts01.png
+    :keywords: WTS01, Sonoff, TH Origin, TH Elite, THR316, THR320, THR316D, THR320D
+
+The ``wts01`` platform allows you to use WTS01 temperature sensors with ESPHome.
+This is the sensor used in Sonoff TH Origin (THR316, THR320) and TH Elite (THR316D, THR320D) devices.
+
+For this component to work you need to have set up a UART bus in your configuration - only the RX pin should be necessary.
+
+The sensor communicates with the microcontroller via :doc:`UART </components/uart>`.
+
+.. figure:: images/wts01-full.png
+    :align: center
+    :width: 80.0%
+
+    WTS01 Temperature Sensor
+
+**Basic configuration**
+
+.. code-block:: yaml
+
+    # You need to have a UART bus setup in your configuration
+    uart:
+      rx_pin: GPIO17
+      baud_rate: 9600
+
+    # Then you can add the WTS01 sensor
+    sensor:
+      - platform: wts01
+        name: "WTS01 Temperature"
+
+**More advanced configurations**
+
+.. code-block:: yaml
+
+    # Throttle updates to the sensor
+    sensor:
+      - platform: wts01
+        name: "WTS01 Temperature"
+        filters:
+          - throttle: 60s
+
+.. code-block:: yaml
+
+    # Convert the temperature to Fahrenheit
+    sensor:
+      - platform: wts01
+        name: "WTS01 Temperature"
+        filters:
+        - lambda: return x * (9.0/5.0) + 32.0;
+        unit_of_measurement: "°F"
+
+
+Configuration variables:
+------------------------
+
+- **sensor** (*Required*): The sensor configuration.
+
+  - **platform** (*Required*, string): Must be ``wts01``.
+  - **name** (*Required*, string): The name of the temperature sensor.
+  - All other options from :ref:`Sensor <config-sensor>`.
+
+.. note::
+
+    The WTS01 sensor is used in Sonoff TH Origin (THR316, THR320) and TH Elite (THR316D, THR320D) devices and connects to the main device using a RJ9 4C4P connector.
+    This sensor provides temperature readings with 0.1°C resolution.
+
+See Also
+--------
+
+- :ref:`sensor-filters`
+- :doc:`/components/uart`
+- :apiref:`wts01/wts01.h`
+- :ghedit:`Edit`