Add sensor platform to acaia (#35752)

Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>

source/_integrations/acaia.markdown

@@ -4,11 +4,13 @@ description: Instructions on how to integrate your Acaia smart coffee scale with
 ha_release: 2024.12
 ha_category:
   - Button
+  - Sensor
 ha_iot_class: Local Push
 ha_config_flow: true
 ha_domain: acaia
 ha_platforms:
   - button
+  - sensor
 ha_bluetooth: true
 ha_codeowners:
   - '@zweckj'
@@ -34,6 +36,11 @@ MAC:
 - **Reset timer**: Resets the timer. If the timer is running, it will continue to run.
 - **Start/stop timer**: Starts or stops the timer, depending on whether the timer is currently running. Does not reset, but continue the timer.
 
+## Sensors
+
+- **Battery**: Current battery level of the scale.
+- **Weight**: The weight currently shown on the scale.
+
 ## Supported devices
 
 The following devices have been tested successfully with this integration:
@@ -94,4 +101,3 @@ actions:
 
 Make sure your scale is turned on and in Bluetooth range to your Home Assistant instance. [ESPHome Bluetooth Proxies](https://esphome.io/components/bluetooth_proxy.html) are a great way to increase the range if your instance is too far away. Turn on debug settings in the acaia integration and check your logs.
 {% enddetails %}
-