diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index b218dce2..95d2b428 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -162,7 +162,7 @@ void setup() {
 // setup radio depending on mode 
   config_radio();	
 		
-  start_button_isr(); 
+///  start_button_isr(); 
 	
   sampleTime = (unsigned int) millis();