diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index 060065c8..cc32029e 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -292,7 +292,7 @@ void loop() {
  
 //      ITimer1.stopTimer();	// turn off pushbutton timer  	   
 ///      ITimer1.disableTimer();	// turn off pushbutton timer  	
-	  
+/*	  
        get_pwm_file();
 	      
        show_dir();
@@ -302,6 +302,8 @@ void loop() {
 
 //       play_pwm_file(26);
        play_pwm_from_file(26);
+*/	  
+       play_pwm_from_serial(26);
 	  
 //      ITimer1.restartTimer();	// turn back on pushbutton timer  	  
 ///      ITimer1.enableTimer();	// turn back on pushbutton timer