diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index e4cdbcdc..a2e8eb19 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -263,7 +263,7 @@ void loop() {
 
 bool TimerHandler1(struct repeating_timer *t) {
 	
-//  serial_input();
+  serial_input();
 	
 // check for button press 
   if (digitalRead(MAIN_PB_PIN) == PRESSED) // pushbutton is pressed