diff --git a/shepherd/plugins/scout/tdw.py b/shepherd/plugins/scout/tdw.py
index 176a0b6..f4c8868 100644
--- a/shepherd/plugins/scout/tdw.py
+++ b/shepherd/plugins/scout/tdw.py
@@ -21,8 +21,11 @@ import threading
 import serial
 import re
 import time
+import logging
 from enum import Enum
 
+log = logging.getLogger(__name__)
+
 DEFAULT = object()
 
 MAX_MSG_LEN = 128
@@ -108,7 +111,7 @@ class TXMessage(Message):
 
         # Allow single value or string as arg, convert to list
         if isinstance(arguments, str) or (not hasattr(arguments, "__iter__")):
-            arguments = list(arguments)
+            arguments = [arguments]
 
         # Stringify args and put in immutable tuples
         immutable_args = tuple([str(arg) for arg in arguments])
@@ -117,7 +120,7 @@ class TXMessage(Message):
         if multipart_args is not None:
             # Allow single value or string as arg, convert to list
             if isinstance(multipart_args, str) or (not hasattr(multipart_args, "__iter__")):
-                multipart_args = list(multipart_args)
+                multipart_args = [multipart_args]
 
             immutable_multipart_args = []
             for arglist in multipart_args:
@@ -288,7 +291,7 @@ class MessageHandler():
         send_str = F"{self._tx_message.msg_type}{self._tx_message.msg_name}{argstr}\n"
         self.port.write(send_str.encode('utf-8'))
         self._tx_sent_time = time.time()
-        #print(F"TX: {send_str}")
+        log.debug(F"Msg TX: {send_str}")
         # Only keep the current message around if we need to track a response
         if not self._tx_message.needs_response:
             self._tx_message = None
@@ -339,7 +342,7 @@ class MessageHandler():
         Only called from the serial_comm thread
         """
 
-        #print(F"RX: {msg_str}")
+        log.debug(F"Msg RX: {msg_str}")
         self._last_rx_time = time.time()
 
         msg_name, _, msg_args_text = msg_str.strip(' \t').partition(':')
@@ -458,9 +461,11 @@ class MessageHandler():
             # Serial comms is not synchronous, so need to be available to recieve characters
             # at any point
             try:
+                log.info(F"Connecting to serial port {self.port.port}, with baud {self.port.baudrate}...")
                 self.port.open()
                 while True:
                     self._handle_serial_port()
             except serial.SerialException:
+                log.error("Could not open serial port")
                 time.sleep(1)
                 # If there's a serialexception, try to reopen the port