diff --git a/io/serialport/25-serial.html b/io/serialport/25-serial.html
index e176fdd6..4fd2f063 100644
--- a/io/serialport/25-serial.html
+++ b/io/serialport/25-serial.html
@@ -86,7 +86,7 @@
 <script type="text/x-red" data-template-name="serial-port">
     <div class="form-row">
         <label for="node-config-input-serialport"><i class="fa fa-random"></i> <span data-i18n="serial.label.serialport"></span></label>
-        <input type="text" id="node-config-input-serialport" style="width:60%;" data-i18n="[placeholder]serial.placeholder.serialport">
+        <input type="text" id="node-config-input-serialport" style="width:66%;" data-i18n="[placeholder]serial.placeholder.serialport">
         <a id="node-config-lookup-serial" class="btn"><i id="node-config-lookup-serial-icon" class="fa fa-search"></i></a>
     </div>
     <div class="form-row">
@@ -98,16 +98,16 @@
             <td width="70px" data-i18n="serial.label.stopbits"></td>
         </tr><tr><td>&nbsp;</td>
         <td>
-            <input type="text" id="node-config-input-serialbaud" style="width:100px">
+            <input type="text" id="node-config-input-serialbaud" style="width:92%">
         </td><td>
-        <select type="text" id="node-config-input-databits" style="width:70px;">
+        <select type="text" id="node-config-input-databits" style="width:90%;">
             <option value="8">8</option>
             <option value="7">7</option>
             <option value="6">6</option>
             <option value="5">5</option>
         </select>
         </td><td>
-        <select type="text" id="node-config-input-parity" style="width:80px;">
+        <select type="text" id="node-config-input-parity" style="width:90%;">
             <option value="none" data-i18n="serial.parity.none"></option>
             <option value="even" data-i18n="serial.parity.even"></option>
             <option value="mark" data-i18n="serial.parity.mark"></option>
@@ -115,29 +115,29 @@
             <option value="space" data-i18n="serial.parity.space"></option>
         </select>
         </td><td>
-        <select type="text" id="node-config-input-stopbits" style="width:70px;">
+        <select type="text" id="node-config-input-stopbits" style="width:90%;">
             <option value="2">2</option>
             <option value="1">1</option>
         </select>
-    </td>
-    </tr></table></div>
+        </td></tr></table>
+    </div>
     <br/>
     <div class="form-row">
         <label><i class="fa fa-sign-in"></i> <span data-i18n="serial.label.input"></span></label>
     </div>
-    <div class="form-row" style="padding-left: 10px;">
+    <div class="form-row" style="padding-left:10px;">
         <span data-i18n="serial.label.split"></span>
-        <select type="text" id="node-config-input-out" style="margin-left: 5px; width:200px;">
+        <select type="text" id="node-config-input-out" style="margin-left:5px; width:200px;">
             <option value="char" data-i18n="serial.split.character"></option>
             <option value="time" data-i18n="serial.split.timeout"></option>
             <option value="count" data-i18n="serial.split.lengths"></option>
         </select>
-        <input type="text" id="node-config-input-newline"  style="width:50px;">
+        <input type="text" id="node-config-input-newline" style="width:50px;">
         <span id="node-units"></span>
     </div>
-    <div class="form-row" style="padding-left: 10px;">
+    <div class="form-row" style="padding-left:10px;">
         <span data-i18n="serial.label.deliver"></span>
-        <select type="text" id="node-config-input-bin" style="margin-left: 5px; width: 150px;">
+        <select type="text" id="node-config-input-bin" style="margin-left:5px; width:150px;">
             <option value="false" data-i18n="serial.output.ascii"></option>
             <option value="bin" data-i18n="serial.output.binary"></option>
         </select>
@@ -148,7 +148,7 @@
             <label><i class="fa fa-sign-out"></i> <span data-i18n="serial.label.output"></span></label>
         </div>
         <div class="form-row">
-            <input style="width: 30px;margin-left: 10px; vertical-align: top;" type="checkbox" id="node-config-input-addchar"><label style="width: auto;" for="node-config-input-addchar"><span data-i18n="serial.addsplit"></span></label>
+            <input style="width:30px; margin-left:10px; vertical-align:top;" type="checkbox" id="node-config-input-addchar"><label style="width:auto;" for="node-config-input-addchar"><span data-i18n="serial.addsplit"></span></label>
         </div>
     </div>
     <div class="form-tips" id="tip-split"><span data-i18n="serial.tip.split"></span></div>
diff --git a/io/serialport/25-serial.js b/io/serialport/25-serial.js
index e6fcf10d..947f0ec1 100644
--- a/io/serialport/25-serial.js
+++ b/io/serialport/25-serial.js
@@ -36,9 +36,13 @@ module.exports = function(RED) {
                 this.serialConfig.stopbits,
                 this.serialConfig.newline);
             node.addCh = "";
-            if (node.serialConfig.addchar == "true" || node.serialConfig.addchar === true) {
-                node.addCh = this.serialConfig.newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0"); // jshint ignore:line
+            if (node.serialConfig.newline.substr(0,2) == "0x") {
+                node.addCh = new Buffer([parseInt(node.serialConfig.newline)]);
             }
+            else {
+                node.addCh = new Buffer(node.serialConfig.newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0")); // jshint ignore:line
+            }
+
             node.on("input",function(msg) {
                 if (msg.hasOwnProperty("payload")) {
                     var payload = msg.payload;
@@ -49,10 +53,10 @@ module.exports = function(RED) {
                         else {
                             payload = payload.toString();
                         }
-                        if (node.out === "char") { payload += node.addCh; }
+                        if ((node.serialConfig.out === "char") && (node.serialConfig.addchar === true)) { payload += node.addCh; }
                     }
-                    else if ((node.addCh !== "") && (node.out === "char")) {
-                        payload = Buffer.concat([payload,new Buffer(node.addCh)]);
+                    else if ((node.serialConfig.out === "char") && (node.serialConfig.addchar === true) && (node.addCh !== "")) {
+                        payload = Buffer.concat([payload,node.addCh]);
                     }
                     node.port.write(payload,function(err,res) {
                         if (err) {
diff --git a/io/serialport/README.md b/io/serialport/README.md
index 12b343b1..29b2f039 100644
--- a/io/serialport/README.md
+++ b/io/serialport/README.md
@@ -1,37 +1,24 @@
 node-red-node-serialport
 ========================
 
-<a href="http://nodered.org" target="_new">Node-RED</a> nodes to talk to
+<a href="http://nodered.org" target="noderedinfo">Node-RED</a> nodes to talk to
 hardware Serial ports.
 
-Install
--------
+## Install
 
-This node is usually installed by default in Node-RED so should not need to be installed manually.
+This node is sometimes installed by default in Node-RED so may not need to be installed manually.
 
 Run the following command in your Node-RED user directory (typically `~/.node-red`):
 
         npm i node-red-node-serialport
 
-For versions on node.js prior to 4.x (ie v0.10.x and v0.12.x) please install using
-
-        sudo npm i -g npm@2.x
-        npm i node-red-node-serialport
-
-You may also have to install or upgrade GCC to be version 4.8 or better.
-Alternatively you can simply install the older version of this node.
-
-        npm install node-red-node-serialport@0.0.5
-
 During install there may be multiple messages about optional compilation.
 These may look like failures... as they report as failure to compile errors -
 but often are warnings and the node will continue to install and, assuming nothing else
 failed, you should be able to use it. Occasionally some platforms *will* require
 you to install the full set of tools in order to compile the underlying package.
 
-
-Usage
------
+## Usage
 
 Provides two nodes - one to receive messages, and one to send.
 
@@ -59,4 +46,4 @@ Provides a connection to an outbound serial port.
 
 Only the `msg.payload` is sent.
 
-Optionally the new line character used to split the input can be appended to every message sent out to the serial port.
+Optionally the character used to split the input can be appended to every message sent out to the serial port.
diff --git a/io/serialport/package.json b/io/serialport/package.json
index 078869e2..ba17ad93 100644
--- a/io/serialport/package.json
+++ b/io/serialport/package.json
@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-serialport",
-    "version"       : "0.6.6",
+    "version"       : "0.6.7",
     "description"   : "Node-RED nodes to talk to serial ports",
     "dependencies"  : {
         "serialport"   : "^6.2.0"