diff --git a/README.md b/README.md
index 526db7387..c8069ad5e 100644
--- a/README.md
+++ b/README.md
@@ -11,10 +11,10 @@ _Sonoff-Tasmota_KNX development branch is kept in sync with the Original Sonoff-
 
 The [KNX](https://www.knx.org/knx-en/knx/association/what-is-knx/index.php) IP Protocol is intended for smart home and smart bulding automation. It is a decentraliced system. Each device can talk directly to each other without the need of a central controller or server. Any panel or server is just for telesupervision and for sending requests.
 
-Each device has a physical address ( like a MAC ) as 1.1.1 and that address is used for configuration purposes.
+Each device has a physical address ( like a MAC ) as 1.1.0 and that address is used for configuration purposes.
 
-Each device can be configured with group addresses as 1/1/1 and that address can be used for sending/receiving commands.
-So, for example, if 2 devices that are configured with the 1/2/5 for turning on/off their outputs, and other device send _Turn ON_ command to 1/2/5, both devices will turn on their outputs.
+Each device can be configured with group addresses as 2/2/1 and that address can be used for sending/receiving commands.
+So, for example, if 2 devices that are configured with the 2/2/1 for turning on/off their outputs, and other device send _Turn ON_ command to 2/2/1, both devices will turn on their outputs.
 
 ## Requirements ##