diff --git a/COZIR-OSC/cozir.py b/COZIR-OSC/cozir.py
index 0c3592b..136a70e 100644
--- a/COZIR-OSC/cozir.py
+++ b/COZIR-OSC/cozir.py
@@ -4,12 +4,13 @@ from pythonosc import udp_client  #pip install python-osc
 
 parser = argparse.ArgumentParser()
 parser.add_argument("--ip", default="127.0.0.1", help="The ip of the OSC server")
-parser.add_argument("--port", type=int, default=7005, help="The port the OSC server is listening on")
+parser.add_argument("--port", type=int, default=7331, help="The port the OSC server is listening on")
+parser.add_argument("--serial", default="/dev/ttyUSB0", help="The usb serial converter port")
 args = parser.parse_args()
 
 client = udp_client.SimpleUDPClient(args.ip, args.port)
 
-ser = Serial('COM4', 9600, timeout=1)
+ser = Serial(args.serial, 9600, timeout=1)
 
 ser.write(b'M 6\n') # set output data mode
 ser.write(b'K 1\n') # set cozir into streaming mode
@@ -26,7 +27,8 @@ while True:
         data=datastring.split(' ')
         print(data)
         
-        client.send_message('cozir/humidity', int(data[2])/10.0)
-        client.send_message('cozir/temperature', (int(data[4])-1000)/10.0)
-        client.send_message('cozir/co2filtered', int(data[6]))
-        client.send_message('cozir/co2raw', int(data[8]))
\ No newline at end of file
+        if len(data)==9:
+            client.send_message('cozir/humidity', int(data[2])/10.0)
+            client.send_message('cozir/temperature', (int(data[4])-1000)/10.0)
+            client.send_message('cozir/co2filtered', int(data[6]))
+            client.send_message('cozir/co2raw', int(data[8]))
\ No newline at end of file