Simple bidir communication working

software/hardware_interface.py

 #Class that uses bluetooth to communicate with HC-06
 #https://github.com/pybluez/pybluez
+#https://github.com/pybluez/pybluez/blob/master/examples/simple/rfcomm-server.py
+
 import bluetooth
 
 class Hardware_interface:
     
-    def __init__(self):
+    #def __init__(self):
+    
+    def __del__(self):
+        #Destructor used to close the socket
+        self.client_socket.close()
+        self.server_socket.close()
+        print("All done.")
+
+    #Print device list to check names used by the system. Used for debugging purposes
+    def print_device_list(self):
         nearby_devices = bluetooth.discover_devices(lookup_names=True)
         print("Found {} devices.".format(len(nearby_devices)))
 
         for addr, name in nearby_devices:
-            print("  {} - {}".format(addr, name))
-       
-    #Print device list to check names used by the system. Used for debugging purposes
-    #def print_device_list(self):
+            print("  {} - {}".format(addr, name))    
+
+    def start_server(self):
+        self.server_socket = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
+        self.server_socket.bind(("", bluetooth.PORT_ANY))
+        self.server_socket.listen(1)
         
+        port = self.server_socket.getsockname()[1]
+
+        uuid = "94f39d29-7d6d-437d-973b-fba39e49d4ee"
+
+        bluetooth.advertise_service(self.server_socket, "SampleServer", service_id=uuid,
+                            service_classes=[uuid, bluetooth.SERIAL_PORT_CLASS],
+                            profiles=[bluetooth.SERIAL_PORT_PROFILE],
+                            # protocols=[bluetooth.OBEX_UUID]
+                            )
+
+        print("Waiting for connection on RFCOMM channel", port)
+
+        self.client_socket, self.client_info = self.server_socket.accept()
+        print("Accepted connection from", self.client_info)
 
-    #def send_data(self):
+    def send_data(self):
+        self.client_socket.send("Envio desde la PC")
 
-    #def get_data(self):
\ No newline at end of file
+    def get_data(self):
+        try:
+            while True:
+                data = self.client_socket.recv(1024)
+                print(data)
+                if not data:
+                    break
+                print("Received", data)     
+        except OSError:
+            pass
\ No newline at end of file

software/smartwatch.py

@@ -166,10 +166,16 @@ if __name__ == '__main__':
 
     #Bluetooth object for communication with MSP432
     btInterface = Hardware_interface()
+    btInterface.print_device_list()
+    btInterface.start_server()
+
+    btInterface.send_data()
+    btInterface.get_data()
 
     #Thread used to separate the use interface with the front end. It is used to not slow down the GUI when processing information
     t = Thread(target=refreshUI, args=(guiRef, model, guiQueue,))
     t.daemon = True
     t.start()
-
-    app.mainloop()
+    
+    #Uncomment to show the GUI
+    #app.mainloop()