diff --git a/Universal_Serial_Adapter/Project.cpp b/Universal_Serial_Adapter/Project.cpp
index 628f786..a4ca947 100644
--- a/Universal_Serial_Adapter/Project.cpp
+++ b/Universal_Serial_Adapter/Project.cpp
@@ -12,12 +12,17 @@
 
 // Map a mode -> text value
 char* modeToText[4] = {
-  "Phone UART",
-  "DB9 - Normal",
+  "Serial TTL",
   "DB9 - Null Mdm",
   "Cisco console"
 };
 
+char* voltageToText[3] = {
+  "1.8V",
+  "3.3V",
+  "5.0V"
+};
+
 // Known and supported line speeds
 linespeedinfo linespeeds[6] = {
   { "2400b", 2400 },
diff --git a/Universal_Serial_Adapter/Project.h b/Universal_Serial_Adapter/Project.h
index 337225f..b95df17 100644
--- a/Universal_Serial_Adapter/Project.h
+++ b/Universal_Serial_Adapter/Project.h
@@ -30,11 +30,9 @@
 // Serial modes supported
 //  Abused in for loops / lookup tables -- DO NOT CHANGE none or set values
 enum serialmode { 
-  phone,
-  db9_norm, 
+  ttl,
   db9_null, 
   cisco,
-  modelinespeed,
   none=-1
 };
 
@@ -54,6 +52,15 @@ enum linespeed {
   zero=-1
 };
 
+enum voltage {
+  onePointEight,
+  threePointThree,
+  five,
+  zero=-1
+};
+
+extern char* voltageToText[];
+
 // Description / speed scruct to use in lookup table
 struct linespeedinfo {
   char* description;
@@ -67,5 +74,8 @@ extern linespeedinfo linespeeds[];
 extern serialmode currentMode;
 extern serialmode selectedMode;
 extern linespeed currentLineSpeed;
+extern linespeed selectedLineSpeed;
+extern voltage currentVoltage;
+extern voltage selectedVoltage;
 
 #endif
diff --git a/Universal_Serial_Adapter/Universal_Serial_Adapter.ino b/Universal_Serial_Adapter/Universal_Serial_Adapter.ino
index 1205947..3467ab7 100644
--- a/Universal_Serial_Adapter/Universal_Serial_Adapter.ino
+++ b/Universal_Serial_Adapter/Universal_Serial_Adapter.ino
@@ -14,6 +14,9 @@
 serialmode currentMode = none;
 serialmode selectedMode = none;
 linespeed currentLineSpeed = zero;
+linespeed selectedLineSpeed = zero;
+voltage currentVoltage = zero;
+voltage selectedVoltage = zero;
 
 // Defaults
 void setDefaults() {