diff --git a/playgrounds/multithread_comm_demo.py b/playgrounds/multithread_comm_demo.py
index bd048a1..ea5b593 100644
--- a/playgrounds/multithread_comm_demo.py
+++ b/playgrounds/multithread_comm_demo.py
@@ -22,11 +22,9 @@ def __init__(self):
         self.pc_queue = queue.Queue(maxsize=0)
 
     def start(self):
-        # _thread.start_new_thread(self.read_android, (self.android_queue,))
         _thread.start_new_thread(self.read_arduino, (self.pc_queue,))
         _thread.start_new_thread(self.read_pc,(self.arduino_queue,))
 
-        # _thread.start_new_thread(self.write_android, (self.android_queue,))
         _thread.start_new_thread(self.write_arduino, (self.arduino_queue,))
         _thread.start_new_thread(self.write_pc, (self.pc_queue,))
 
@@ -38,20 +36,6 @@ def start(self):
     def end(self):
         log.info('Multithread Communication Session Ended')
 
-    # def read_android(self, android_queue):
-    #     while True:
-    #         msg = self.android.read()
-    #         if msg is not None:
-    #             log.info('Read Android:' + str(msg))
-    #             android_queue.put_nowait('Hello from PC: ' + str(msg))
-
-    # def write_android(self, android_queue):
-    #     while True:
-    #         if not android_queue.empty():
-    #             msg = android_queue.get_nowait()
-    #             self.android.write(msg)
-    #             log.info('Write Android: ' + str(msg))
-
     def read_arduino(self, pc_queue):
         while True:
             msg = self.arduino.read()
@@ -70,8 +54,11 @@ def read_pc(self, arduino_queue):
         while True:
             msg = self.pc.read()
             if msg is not None:
-                log.info('Read PC: ' + str(msg))
-                arduino_queue.put_nowait(msg)
+                log.info('Read PC: ' + str(msg['target']) + '; ' + str(msg['payload']))
+                if msg['target'] == 'arduino':
+                    arduino_queue.put_nowait(msg['payload'])
+                elif msg['target'] == 'both':
+                    arduino_queue.put_nowait(msg['payload']['arduino'])
 
     def write_pc(self, pc_queue):
         while True: