diff --git a/README.md b/README.md
index 4901596..354b718 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,9 @@ All the credits goes to [python-broadlink library](https://github.com/mjg59/pyth
 This small program just outputs the information from the library of the detected smart plug devices.
 The MAC addresses are needed for the configuration of the real tool.
 
+Note: Instead of using this tool, you can also look up the connected devices MAC addresses in your router, then you do not need to install the library python-broadlink.
+
+
 ## Example standard output of python_broadlink_smart_plug_mini_info.py
 
 ```
diff --git a/requirements.txt b/requirements.txt
index cacb834..adb5161 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 python_version>=3.9
-broadlink==0.18.3
+broadlink==0.18.3       # only needed when you want to look up MAC addresses with the tool python_broadlink_smart_plug_mini_info.py, alternatively look for the MAC addresses in your router
 python_dateutil==2.8.2
-gspread==5.6.2
+gspread==5.6.2          # only needed when you use csv_to_google_sheet.py