diff --git a/pyren3/data_logger.py b/pyren3/data_logger.py
index f896841..6495e11 100644
--- a/pyren3/data_logger.py
+++ b/pyren3/data_logger.py
@@ -6,11 +6,7 @@ from datetime import datetime
 from time import time_ns
 from os import _exit
 
-import mod_globals
-
-mod_globals.opt_demo = True
-
-dash = RenDash("/dev/tty1")
+dash = RenDash("/dev/ttyUSB0")
 web = Flask(__name__, static_folder="web_static/", static_url_path="/static")
 socket = SocketIO(web)