Anova component docs (#1140)

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

components/climate/anova.rst

@@ -0,0 +1,53 @@
+Anova Cooker
+=============
+
+.. seo::
+    :description: Instructions for setting up an Anova sous-vide cooker.
+    :image: anova.png
+
+The ``anova`` climate platform creates a climate device which can be used
+to control a BLE Anova sous-vide stick. Whilst not strictly a climate
+device, the concept of keeping something to a set temperature applies
+equally here.
+
+This component supports the following functionality:
+
+- Turn the stick on or off
+- Set the desired temperature
+- Show the current temperature
+
+The timer is not currently supported, you can use automations to achieve
+similar functionality.
+
+This platform uses the BLE peripheral on an ESP32, so you also need to enable
+this component. Please see the BLE Client docs for how to discover the MAC
+address of your Anova device.
+You cannot use the Anova app over BLE whilst this component is connected, you
+should disconnect it first. To setup a (dis-)connect switch, see :doc:`/components/switch/ble_client`.
+
+.. code-block:: yaml
+
+    ble_client:
+      - mac_address: 11:22:33:aa:bb:cc
+        id: my_anova
+
+    climate:
+      - platform: anova
+        name: "My Anova stick"
+        ble_client_id: my_anova
+
+Configuration variables:
+------------------------
+
+- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
+- **name** (**Required**, string): The name of the climate device.
+- **ble_client_id** (**Required**, :ref:`config-id`): The ID of the BLE Client.
+- All other options from :ref:`Climate <config-climate>`.
+
+See Also
+--------
+
+- :doc:`/components/ble_client`
+- :doc:`/components/climate/index`
+- :apiref:`anova/anova.h`
+- :ghedit:`Edit`

index.rst

@@ -398,6 +398,7 @@ Climate Components
     IR Remote Climate, components/climate/ir_climate, air-conditioner-ir.svg
     Tuya Climate, components/climate/tuya, tuya.png
     Midea Air Conditioner, components/climate/midea_ac, midea.svg
+    Anova Cooker, components/climate/anova, anova.png
 
 Misc Components
 ---------------