Added output "New Line" char to Serial

Addresses Issue #104
adds the option to re-use the character used the split input into lineson input as an append to every line sent out to the serial port.

nodes/core/io/25-serial.html

@@ -66,6 +66,7 @@
 <script type="text/x-red" data-help-name="serial out">
     <p>Provides a connection to an outbound serial port.</p>
     <p>Only the <b>msg.payload</b> is sent.</p>
+    <p>Optionally the new line character used to split the input can be appended to every message sent out to the serial port.</p>
 </script>
 
 <script type="text/javascript">
@@ -88,7 +89,6 @@
             return this.name?"node_label_italic":"";
         }
     });
-
 </script>
 
 
@@ -121,14 +121,16 @@
     </div>
     <div class="form-row">
         <label for="node-config-input-newline"><i class="icon-text-width"></i> New line</label>
-        <input type="text" id="node-config-input-newline">
+        <input type="text" id="node-config-input-newline"  style="width: 50px;">
     </div>
-<!--
     <div class="form-row">
-        <label for="node-config-input-name"><i class="icon-tag"></i> Name</label>
+        <label for="node-config-input-addchar">&nbsp;</label>
-        <input type="text" id="node-config-input-name" placeholder="Name">
+        <select type="text" id="node-config-input-addchar" style="width: 70%;">
+            <option value="false">Don't add 'New Line' to serial output</option>
+            <option value="true">Add 'New line' to serial output message</option>
+        </select>
     </div>
--->
+    <div class="form-tips">Tip: the new line character is used to split the input into separate messages. It can also be added to every message sent out to the serial port.</div>
 </script>
 
 <script type="text/javascript">
@@ -138,7 +140,8 @@
             //name: {value:""},
             serialport: {value:"",required:true},
             serialbaud: {value:57600,required:true},
-            newline: {value:"\\n"}
+            newline: {value:"\\n"},
+            addchar: {value:false}
         },
         label: function() {
             //return this.name||this.serialport;

nodes/core/io/25-serial.js

@@ -27,6 +27,7 @@ function SerialPortNode(n) {
     this.serialport = n.serialport;
     this.serialbaud = n.serialbaud * 1;
     this.newline = n.newline;
+    this.addchar = n.addchar || "false";
 }
 RED.nodes.registerType("serial-port",SerialPortNode);
 
@@ -44,27 +45,28 @@ function SerialOutNode(n) {
             this.error(err);
             return;
         }
-
+        node.addCh = "";
+        if (node.serialConfig.addchar == "true") { node.addCh = this.serialConfig.newline.replace("\\n","\n").replace("\\r","\r"); }
         node.on("input",function(msg) {
-                //console.log("{",msg,"}");
+            var payload = msg.payload;
-                node.port.write(msg.payload,function(err,res) {
+            if (typeof payload === "object") { payload = JSON.stringify(payload); }
-                        if (err) {
+            if (typeof payload !== "buffer") { payload = new String(payload) + node.addCh; }
-                            node.error(err);
+            node.port.write(payload,function(err,res) {
-                        }
+                if (err) { node.error(err); }
             });
         });
     } else {
         this.error("missing serial config");
     }
-}
-RED.nodes.registerType("serial out",SerialOutNode);
 
-
+    this.on("close", function() {
-SerialOutNode.prototype.close = function() {
         if (this.serialConfig) {
             serialPool.close(this.serialConfig.serialport);
         }
+    });
 }
+RED.nodes.registerType("serial out",SerialOutNode);
+
 
 function SerialInNode(n) {
     RED.nodes.createNode(this,n);
@@ -81,18 +83,13 @@ function SerialInNode(n) {
         }
 
         this.port.on('data', function(msg) {
-                // console.log("{",msg,"}");
+            node.send({ "payload": msg });
-                var m = { "payload": msg };
-                node.send(m);
         });
     } else {
         this.error("missing serial config");
     }
-}
-RED.nodes.registerType("serial in",SerialInNode);
 
-
+    this.on("close", function() {
-SerialInNode.prototype.close = function() {
         if (this.serialConfig) {
             try {
                 serialPool.close(this.serialConfig.serialport);
@@ -100,7 +97,10 @@ SerialInNode.prototype.close = function() {
             }
             this.warn("Deploying with serial-port nodes is known to occasionally cause Node-RED to hang. This is due to an open issue with the underlying module.");
         }
+    });
 }
+RED.nodes.registerType("serial in",SerialInNode);
+
 
 var serialPool = function() {
     var connections = {};