diff --git a/LoRaSender/LoRaSender.ino b/LoRaSender/LoRaSender.ino
index 172c606..cf1706c 100644
--- a/LoRaSender/LoRaSender.ino
+++ b/LoRaSender/LoRaSender.ino
@@ -86,7 +86,8 @@ void showOnOLED(const String& line1, const String& line2 = "", const String& lin
 }
 
 String readGpsLine() {
-  return "GPS DATEN!";
+  static int counter = 1;
+  return String(counter++);
 }
 
 void setup() {