diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index f8e4c2a3..d91efc98 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -162,6 +162,9 @@ void setup() {
 
   }
 	
+// start pwm
+start_pwm();
+	
 // configure ina219s	
 start_ina219();