diff --git a/notes.md b/notes.md
index f369149..5440fb1 100644
--- a/notes.md
+++ b/notes.md
@@ -23,8 +23,9 @@
 * ssh aktiviert aus volumio.local/dev
 
  ssh volumio@volumio.local
- sudo apt-get install fswebcam
+ sudo apt-get install fswebcam zbar-tools
  fswebcam -r 320x240 -d /dev/video0 -v ~/webcam-test.jpg
+ zbarcam --quiet --nodisplay --raw -Sdisable -Sqrcode.enable --prescale=320x240 /dev/video0
  
  #sudo apt-get install python3
  #sudo apt-get install python3-websocket