diff --git a/source/components/sensor.mysensors.markdown b/source/components/sensor.mysensors.markdown
index df659179aee..2566cc3fa4a 100644
--- a/source/components/sensor.mysensors.markdown
+++ b/source/components/sensor.mysensors.markdown
@@ -10,7 +10,9 @@ footer: true
 ---
 
 <img src='/images/supported_brands/mysensors.png' class='brand pull-right' />
-Integrate your [MySensors sensors](https://www.mysensors.org) by adding the following to your `configuration.yaml`:
+The [MySensors](https://www.mysensors.org) project combines Arduino boards with NRF24L01 radio boards to build sensor networks.
+
+Integrate your Serial MYSensors Gateway by adding the following to your `configuration.yaml`:
 
 ```yaml
 # Example configuration.yaml entry
@@ -18,3 +20,11 @@ sensor:
   platform: mysensors
   port: /dev/ttyACM0
 ```
+
+Configuration variables:
+
+- **port** (*Required*): The port where your board is connected to your Home Assistant host. If you are using an original Arduino the port will be named `ttyACM*`. The exact number can be determined with `ls /dev/ttyACM*`.
+
+```bash
+ls /dev/ttyACM*
+```