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diff --git a/Arduino_Grundlagen/05_Lichtsensor/readme.md b/Arduino_Grundlagen/05_Lichtsensor/readme.md
index 0146be7..fbbf117 100644
--- a/Arduino_Grundlagen/05_Lichtsensor/readme.md
+++ b/Arduino_Grundlagen/05_Lichtsensor/readme.md
@@ -6,15 +6,15 @@ Zuerst öffnen wir die Übung über den gewohnten Weg. Der Name ist "05_Lichtsen
 
 ![Übung öffnen](oeffnen.png)
 
-## Verkabeln wir den Piepser mit dem Arduino mit dem Arduino
+## Verkabeln wir den Lichtsensor mit dem Arduino
 
 So muss da aussehen, wenn wir fertig sind:
 
-<img src="04_Lichtsensor.svg">
+<img src="05_Lichtsensor.svg">
 
 So und dann geht's wieder ans Programmieren.
 
-In der Datei 05_Piepser.ino finden wir (ohne die ganzen Kommentare) folgenden Quellcode:
+In der Datei 05_Lichtsensor.ino finden wir (ohne die ganzen Kommentare) folgenden Quellcode:
 
 ```c
 int sensorPin = A0;