Let serialport node only report errors once

instead of repeating

io/serialport/25-serial.js

@@ -216,6 +216,7 @@ module.exports = function(RED) {
                             write: function(m,cb) { this.serial.write(m,cb); },
                         }
                         //newline = newline.replace("\\n","\n").replace("\\r","\r");
+                        var olderr = "";
                         var setupSerial = function() {
                             obj.serial = new serialp.SerialPort(port,{
                                 baudrate: baud,
@@ -223,7 +224,17 @@ module.exports = function(RED) {
                                 parity: parity,
                                 stopbits: stopbits,
                                 parser: serialp.parsers.raw
-                            },true, function(err, results) { if (err) { obj.serial.emit('error',err); } });
+                            },true, function(err, results) {
+                                if (err) {
+                                    if (err.toString() !== olderr) {
+                                        olderr = err.toString();
+                                        RED.log.error(RED._("serial.errors.error",{port:port,error:olderr}));
+                                    }
+                                }
+                                obj.tout = setTimeout(function() {
+                                    setupSerial();
+                                }, settings.serialReconnectTime);
+                            });
                             obj.serial.on('error', function(err) {
                                 RED.log.error(RED._("serial.errors.error",{port:port,error:err.toString()}));
                                 obj._emitter.emit('closed');
@@ -241,6 +252,7 @@ module.exports = function(RED) {
                                 }
                             });
                             obj.serial.on('open',function() {
+                                olderr = "";
                                 RED.log.info(RED._("serial.onopen",{port:port,baud:baud,config: databits+""+parity.charAt(0).toUpperCase()+stopbits}));
                                 if (obj.tout) { clearTimeout(obj.tout); }
                                 //obj.serial.flush();

io/serialport/README.md

@@ -26,7 +26,7 @@ Usage
 
 Provides two nodes - one to receive messages, and one to send.
 
-###Input
+### Input
 
 Reads data from a local serial port.
 
@@ -44,7 +44,7 @@ It then outputs **msg.payload** as either a UTF8 ascii string or a binary Buffer
 If no split character is specified, or a timeout or buffer size of 0, then a stream
 of single characters is sent - again either as ascii chars or size 1 binary buffers.
 
-###Output
+### Output
 
 Provides a connection to an outbound serial port.
 

io/serialport/package.json

@@ -1,10 +1,12 @@
 {
     "name"          : "node-red-node-serialport",
-    "version"       : "0.0.3",
+    "version"       : "0.0.4",
     "description"   : "Node-RED nodes to talk to an serial port",
     "dependencies"  : {
         "serialport"   : "1.7.*"
     },
+    "engineStrict" : true,
+    "engines" : { "node" : "<=0.12" },
     "repository" : {
         "type":"git",
         "url":"https://github.com/node-red/node-red-nodes/tree/master/io/serialport"