diff --git a/plugins/LaserUE.java b/plugins/LaserUE.java
index 81dc05a..bf9d976 100644
--- a/plugins/LaserUE.java
+++ b/plugins/LaserUE.java
@@ -27,6 +27,7 @@ public class LaserUE extends SerialPortDevice{
                 while(!isClosed()){
                     try{
                         if (isInitialized()){
+                            System.out.println("R");
                             int rx;
                             while ((rx = readByte()) >= 0) {
                                  onByte((byte) rx);