Add information on sensor entities

source/_integrations/motionblinds_ble.markdown

@@ -33,6 +33,17 @@ During the setup of a Motionblinds BLE device, you will be asked what kind of bl
 - **Curtain blind**: has the ability to change position. May need to be calibrated if the end positions are lost, which can be done by using the open/close cover button or the set cover position slider. This will trigger a calibration which will first make the curtain find the end positions after which it will run to the position as indicated by the command that was given.
 - **Vertical blind**: has the ability to change position and tilt. May need to be calibrated if the end positions are lost, which has to be done using the Motionblinds BLE mobile app.
 
+## Entities
+
+The following entities are available for a Motionblinds BLE device:
+
+- [Cover](https://www.home-assistant.io/integrations/cover/) entity: depending on the blind that was chosen during the setup, this entity has a slider that makes it possible to change position and tilt, and buttons that allow you to open the blind, close the blind, tilt it open, tilt it closed and stop it.
+- [Sensor](https://www.home-assistant.io/integrations/sensor/) entities:
+  -  Battery sensor: shows the battery percentage. The icon also reflects whether the motor is currently charging and/or whether the motor is wired and therefore does not have a battery.
+  -  Calibration sensor: shows whether or not the blind is still calibrated. The motor can move to an uncalibrated state when the motor has been moved to a different position while not powered. Available for a curtain blind and vertical blind as these can be moved while not powered.
+  -  Connection sensor: shows whether the blind is connected, disconnected, connecting, or disconnecting.
+  -  Signal strength sensor: shows the signal strength in dBm.
+
 ## Services
 
 Since Motionblinds BLE motors require a Bluetooth connection to control them, Home Assistant does not get automatic updates of the motor's state by default. Therefore, you can use the [homeassistant.update_entity](https://www.home-assistant.io/docs/scripts/service-calls/#homeassistant-services) service on a Motionblinds BLE entity which will connect to your Motionblind and update the state of all entities belonging to the device. **However, be aware that doing so may impact battery life.**