Fix simulation mode

run.py

@@ -37,7 +37,7 @@ import time
 import subprocess
 
 # set to false to run without real hardware for development
-real = True
+real = False
 skip_scanning = True
 
 mbconn = None
@@ -542,6 +542,8 @@ def get_sensors():
     global mbconn
     global sensors
     #print("Reading sensors")
+    if not real:
+        return -1
     if not mbconn.is_open:
         mbconn.open()
     """
@@ -739,7 +741,7 @@ def mainloop_server(pool, manager):
         if ring_animation is not None and real:
             ledsys.mainloop(None, ring_animation, arm_position=arm_position)
             
-        else:
+        elif real:
             ledsys.mainloop(None, -1, arm_position=arm_position)
 
     # every 1 second