mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
Add binary capabilities to Serial node - along with timeout, fixed
buffer size and binary output options. Also updated icons and added strict checking.
This commit is contained in:
Dave C-J
parent
c10ed13322
commit
0cbc277a2c
@ -1,5 +1,5 @@
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<!--
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Copyright 2013 IBM Corp.
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Copyright 2013,2014 IBM Corp.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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@ -16,18 +16,19 @@
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<script type="text/x-red" data-template-name="serial in">
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<div class="form-row node-input-serial">
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<label for="node-input-serial"><i class="icon-bullhorn"></i> Serial Port</label>
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<label for="node-input-serial"><i class="fa fa-random"></i> Serial Port</label>
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<input type="text" id="node-input-serial">
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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<script type="text/x-red" data-help-name="serial in">
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<p>Reads data from a local serial port.</p>
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<p>Keeps reading from the serial port until it sees \n (default) or the character(s) requested. Only sets <b>msg.payload</b>.</p>
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<p>In ascii mode keeps reading from the serial port until it sees \n (default) or the character(s) requested. Outputs <b>msg.payload</b> as a <i>string</i>.</p>
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<p>In binary mode can either output buffers of a fixed size, or wait for a timeout and then send whatever has accumlated. Outputs <b>msg.payload</b> as a <i>buffer</i>.</p>
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</script>
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<script type="text/javascript">
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@ -53,11 +54,11 @@
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<script type="text/x-red" data-template-name="serial out">
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<div class="form-row node-input-serial">
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<label for="node-input-serial"><i class="icon-bullhorn"></i> Serial Port</label>
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<label for="node-input-serial"><i class="fa fa-random"></i> Serial Port</label>
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<input type="text" id="node-input-serial">
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</div>
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<div class="form-row">
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<label for="node-input-name"><i class="icon-tag"></i> Name</label>
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<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
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<input type="text" id="node-input-name" placeholder="Name">
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</div>
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</script>
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@ -93,13 +94,13 @@
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<script type="text/x-red" data-template-name="serial-port">
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<div class="form-row">
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<label for="node-config-input-serialport"><i class="icon-bullhorn"></i> Serial Port</label>
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<label for="node-config-input-serialport"><i class="fa fa-random"></i> Serial Port</label>
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<input type="text" id="node-config-input-serialport" style="width:60%;" placeholder="/dev/ttyUSB0"/>
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<a id="node-config-lookup-serial" class="btn"><i id="node-config-lookup-serial-icon" class="icon icon-search"></i></a>
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<a id="node-config-lookup-serial" class="btn"><i id="node-config-lookup-serial-icon" class="fa fa-search"></i></a>
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</div>
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<div class="form-row">
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<table><tr>
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<td width = "102px"><i class="icon-wrench"></i> Settings</td>
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<td width = "102px"><i class="fa fa-wrench"></i> Settings</td>
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<td width = "100px">Baud Rate</td>
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<td width = "80px">Data Bits</td>
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<td width = "80px">Parity</td>
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@ -146,19 +147,66 @@
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<option value="1">1</option>
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</select>
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</td>
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</tr></table>
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</tr></table><br/>
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<div class="form-row">
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<label for="node-config-input-newline"><i class="icon-text-width"></i> New line</label>
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<label for="node-config-input-out"><i class="fa fa-cut"></i> Split input</label>
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<select type="text" id="node-config-input-out" style="width:52%;">
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<option value="char">when character received is</option>
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<option value="time">after a fixed timeout of</option>
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<option value="count">a fixed number of characters</option>
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</select>
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<input type="text" id="node-config-input-newline" style="width:50px;">
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<span id="node-units"></span>
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</div>
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<div class="form-row">
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<label for="node-config-input-addchar"> </label>
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<select type="text" id="node-config-input-addchar" style="width: 70%;">
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<option value="false">Don't add 'New Line' to any output messages</option>
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<option value="true">Add 'New line' to output messages</option>
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<label for="node-config-input-bin"><i class="fa fa-sign-in"></i> and deliver</label>
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<select type="text" id="node-config-input-bin" style="width: 77%;">
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<option value="false">ascii strings</option>
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<option value="bin">binary buffers</option>
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</select>
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</div>
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<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>
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<br/>
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<div class="form-row" id="node-config-addchar">
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<label for="node-config-input-addchar"><i class="fa fa-sign-out"></i> On output</label>
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<select type="text" id="node-config-input-addchar" style="width: 77%;">
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<option value="false">don't add 'split' character to output messages</option>
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<option value="true">add 'split' character to output messages</option>
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</select>
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</div>
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<div class="form-tips" id="tip-split">Tip: the "Split on" 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>
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<div class="form-tips" id="tip-bin" hidden>Tip: In timeout mode timeout starts from arrival of first character.</div>
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<script>
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var previous = null;
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$("#node-config-input-out").on('focus', function () { previous = this.value; }).change(function() {
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if (previous == null) { previous = $("#node-config-input-out").val(); }
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if ($("#node-config-input-out").val() == "char") {
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if (previous != "char") { $("#node-config-input-newline").val("\\n"); }
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$("#node-units").text("");
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$("#node-config-addchar").show();
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$("#tip-split").show();
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$("#tip-bin").hide();
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}
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else if ($("#node-config-input-out").val() == "time") {
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if (previous != "time") { $("#node-config-input-newline").val("0"); }
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$("#node-units").text("ms");
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$("#node-config-addchar").hide();
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$("#node-config-input-addchar").val("false");
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$("#tip-split").hide();
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$("#tip-bin").show();
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}
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else {
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if (previous != "count") { $("#node-config-input-newline").val("12"); }
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$("#node-units").text("chars");
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$("#node-config-addchar").hide();
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$("#node-config-input-addchar").val("false");
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$("#tip-split").hide();
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$("#tip-bin").hide();
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}
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});
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</script>
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</script>
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<script type="text/javascript">
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@ -172,6 +220,8 @@
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parity: {value:"none",required:true},
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stopbits: {value:1,required:true},
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newline: {value:"\\n"},
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bin: {value:""},
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out: {value:""},
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addchar: {value:false}
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},
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label: function() {
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@ -187,13 +237,12 @@
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} catch(err) {
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}
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$("#node-config-lookup-serial").click(function() {
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$("#node-config-lookup-serial-icon").removeClass('icon-search');
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$("#node-config-lookup-serial-icon").addClass('spinner');
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//$("#node-config-lookup-serial-icon").removeClass('fa fa-search');
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//$("#node-config-lookup-serial-icon").addClass('fa fa-spinner');
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$("#node-config-lookup-serial").addClass('disabled');
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$.getJSON('serialports',function(data) {
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$("#node-config-lookup-serial-icon").addClass('icon-search');
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$("#node-config-lookup-serial-icon").removeClass('spinner');
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//$("#node-config-lookup-serial-icon").addClass('fa fa-search');
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//$("#node-config-lookup-serial-icon").removeClass('fa fa-spinner');
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$("#node-config-lookup-serial").removeClass('disabled');
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var ports = [];
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$.each(data, function(i, port){
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@ -1,5 +1,5 @@
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/**
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* Copyright 2013 IBM Corp.
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* Copyright 2013,2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -15,10 +15,12 @@
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**/
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module.exports = function(RED) {
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"use strict";
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var settings = RED.settings;
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var events = require("events");
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var util = require("util");
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var serialp = require("serialport");
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var bufMaxSize = 32768; // Max serial buffer size, for inputs...
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// TODO: 'serialPool' should be encapsulated in SerialPortNode
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@ -27,11 +29,12 @@ module.exports = function(RED) {
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this.serialport = n.serialport;
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this.newline = n.newline;
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this.addchar = n.addchar || "false";
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this.serialbaud = parseInt(n.serialbaud) || 57600;
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this.databits = parseInt(n.databits) || 8;
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this.parity = n.parity || "none";
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this.stopbits = parseInt(n.stopbits) || 1;
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this.bin = n.bin || "false";
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this.out = n.out || "char";
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}
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RED.nodes.registerType("serial-port",SerialPortNode);
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@ -50,7 +53,7 @@ module.exports = function(RED) {
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this.serialConfig.newline);
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node.addCh = "";
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if (node.serialConfig.addchar == "true") {
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node.addCh = this.serialConfig.newline.replace("\\n","\n").replace("\\r","\r");
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node.addCh = this.serialConfig.newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0");
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}
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node.on("input",function(msg) {
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var payload = msg.payload;
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@ -90,6 +93,7 @@ module.exports = function(RED) {
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}
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RED.nodes.registerType("serial out",SerialOutNode);
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function SerialInNode(n) {
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RED.nodes.createNode(this,n);
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this.serial = n.serial;
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@ -97,15 +101,70 @@ module.exports = function(RED) {
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if (this.serialConfig) {
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var node = this;
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node.tout = null;
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var buf;
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if (node.serialConfig.out != "count") { buf = new Buffer(bufMaxSize); }
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else { buf = new Buffer(Number(node.serialConfig.newline)); }
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var i = 0;
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node.status({fill:"grey",shape:"dot",text:"unknown"});
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node.port = serialPool.get(this.serialConfig.serialport,
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this.serialConfig.serialbaud,
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this.serialConfig.databits,
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this.serialConfig.parity,
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this.serialConfig.stopbits,
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this.serialConfig.newline);
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this.serialConfig.newline
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);
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var splitc = new Buffer(node.serialConfig.newline.replace("\\n","\n").replace("\\r","\r").replace("\\t","\t").replace("\\e","\e").replace("\\f","\f").replace("\\0","\0"));
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this.port.on('data', function(msg) {
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node.send({ "payload": msg });
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// single char buffer
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if (node.serialConfig.newline == 0) {
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node.send({"payload": new Buffer([msg])});
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}
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else {
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// do the timer thing
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if (node.serialConfig.out === "time") {
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if (node.tout) {
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i += 1;
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buf[i] = msg;
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}
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else {
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node.tout = setTimeout(function () {
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node.tout = null;
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var m = new Buffer(i+1);
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buf.copy(m,0,0,i+1);
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if (node.serialConfig.bin !== "bin") { m = m.toString(); }
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node.send({"payload": m});
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}, node.serialConfig.newline);
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i = 0;
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buf[0] = msg;
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}
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}
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// count bytes into a buffer...
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else if (node.serialConfig.out === "count") {
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buf[i] = msg;
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i += 1;
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if ( i >= Number(node.serialConfig.newline)) {
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var m = new Buffer(i);
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buf.copy(m,0,0,i-1);
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if (node.serialConfig.bin !== "bin") { m = m.toString(); }
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node.send({"payload":m});
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i = 0;
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}
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}
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// look to match char...
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else if (node.serialConfig.out === "char") {
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buf[i] = msg;
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i += 1;
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if ((msg === splitc[0]) || (i === bufMaxSize)) {
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var m = new Buffer(i);
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buf.copy(m,0,0,i);
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if (node.serialConfig.bin !== "bin") { m = m.toString(); }
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node.send({"payload":m});
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i = 0;
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}
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}
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else { console.log("Should never get here"); }
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}
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});
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this.port.on('ready', function() {
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node.status({fill:"green",shape:"dot",text:"connected"});
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@ -144,9 +203,9 @@ module.exports = function(RED) {
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close: function(cb) { this.serial.close(cb); },
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write: function(m,cb) { this.serial.write(m,cb); },
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}
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newline = newline.replace("\\n","\n").replace("\\r","\r");
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//newline = newline.replace("\\n","\n").replace("\\r","\r");
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var setupSerial = function() {
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if (newline == "") {
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//if (newline == "") {
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obj.serial = new serialp.SerialPort(port,{
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baudrate: baud,
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databits: databits,
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@ -154,16 +213,16 @@ module.exports = function(RED) {
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stopbits: stopbits,
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parser: serialp.parsers.raw
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},true, function(err, results) { if (err) obj.serial.emit('error',err); });
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}
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else {
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obj.serial = new serialp.SerialPort(port,{
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baudrate: baud,
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databits: databits,
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parity: parity,
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stopbits: stopbits,
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parser: serialp.parsers.readline(newline)
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},true, function(err, results) { if (err) obj.serial.emit('error',err); });
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}
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//}
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//else {
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// obj.serial = new serialp.SerialPort(port,{
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// baudrate: baud,
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// databits: databits,
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// parity: parity,
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// stopbits: stopbits,
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// parser: serialp.parsers.readline(newline)
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// },true, function(err, results) { if (err) obj.serial.emit('error',err); });
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//}
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obj.serial.on('error', function(err) {
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util.log("[serial] serial port "+port+" error "+err);
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obj._emitter.emit('closed');
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@ -187,15 +246,16 @@ module.exports = function(RED) {
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obj._emitter.emit('ready');
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});
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obj.serial.on('data',function(d) {
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if (typeof d !== "string") {
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d = d.toString();
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for (i=0; i<d.length; i++) {
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obj._emitter.emit('data',d.charAt(i));
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}
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}
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else {
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obj._emitter.emit('data',d);
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//console.log(Buffer.isBuffer(d),d.length,d);
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//if (typeof d !== "string") {
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// //d = d.toString();
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for (var z=0; z<d.length; z++) {
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obj._emitter.emit('data',d[z]);
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}
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//}
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//else {
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// obj._emitter.emit('data',d);
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//}
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});
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}
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setupSerial();
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@ -226,7 +286,7 @@ module.exports = function(RED) {
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RED.httpAdmin.get("/serialports",function(req,res) {
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serialp.list(function (err, ports) {
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console.log(JSON.stringify(ports));
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//console.log(JSON.stringify(ports));
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res.writeHead(200, {'Content-Type': 'text/plain'});
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res.write(JSON.stringify(ports));
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res.end();
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