node-red-nodes/hardware/BBB/145-BBB-hardware.html

<!--
  Copyright 2014 Maxwell R Hadley

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->

<!-- Edit dialog for bbb-analogue-in -->
<script type="text/x-red" data-template-name="bbb-analogue-in">
   <div class="form-row">
       <label for="node-input-pin"><i class="fa fa-asterisk"></i>Input pin</label>
       <select type="text" id="node-input-pin" style="width: 150px;">
           <option value="">select pin</option>
           <option value="P9_39">AIN0 (P9 pin 39)</option>
           <option value="P9_40">AIN1 (P9 pin 40)</option>
           <option value="P9_37">AIN2 (P9 pin 37)</option>
           <option value="P9_38">AIN3 (P9 pin 38)</option>
           <option value="P9_33">AIN4 (P9 pin 33)</option>
           <option value="P9_36">AIN5 (P9 pin 36)</option>
           <option value="P9_35">AIN6 (P9 pin 35)</option>
       </select>
   </div>
    <div class="form-row">
        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </div>
    <div class="form-row">
    Input Scaling
    </div>
    <div class="form-row">
        <div id="node-input-breakpoint-container-div" style="border-radius: 5px; height: 132px; padding: 5px; border: 1px solid #ccc; overflow-y:scroll;">
            <ol id="node-input-breakpoint-container" style=" list-style-type:none; margin: 0;">
            </ol>
        </div>
    </div>
    <div class="form-row">
        <a href="#" class="btn btn-mini" id="node-input-add-breakpoint" style="margin-top: 4px;"><i class="fa fa-plus"></i> Add Breakpoint</a>
        <span style="float:right; margin-top:4px">
            <input type="checkbox" id="node-input-averaging" style="display:inline-block; width:auto; vertical-align:top;"> Averaging&nbsp;
        </span> 
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Help text for bbb-analogue-in -->
<script type="text/x-red" data-help-name="bbb-analogue-in">
<p>
Analogue input for the Beaglebone Black. Reads an analogue pin when triggered by
a message.
</p>
<p>The output message topic is the node topic: the output message value is the
scaled analogue input or NaN if a read error occurs.
</p>
<p>
Simple linear scaling is defined by setting the output values required for input
values of 0 and 1. You can apply more complicated scaling, e.g. for sensor linearisation,
by defining breakpoints at intermediate input values, with the desired output for
each. Values between breakpoints are linearly interpolated.
</p>
<p>
To reduce the effect of noise, enable averaging. This will read the input pin
voltage ten times in rapid succession for each input message and output the mean value.
</p>
</script>

<!-- Register bbb-analogue-in node -->
<script type="text/javascript">
    RED.nodes.registerType('bbb-analogue-in', {
        category: 'advanced-input', // the palette category
        color:"#de7224",
        defaults: {                 // defines the editable properties of the node
            pin: { value:"", required:true },
            topic: { value:"" },
            breakpoints: { value:[{input:0.0, output:0.0, mutable:false},  {input:1.0, output:1.0, mutable:false}] },
            averaging: { value:false, required:true },
            name: { value:"" }
        },
        inputs:1,                   // set the number of inputs - only 0 or 1
        outputs:1,                  // set the number of outputs - 0 to n
        icon: "BBB.png",            // set the icon (held in public/icons)
        label: function() {         // sets the default label contents
                return this.name || "bbb-analogue-in: " + this.pin;
            },
        labelStyle: function() {    // sets the class to apply to the label
                return this.name ? "node_label_italic" : "";
            },
        oneditprepare: function () {
                function generateBreakpoint(breakpoint, insert) {
                    var container = $('<li/>', {style:"margin:0; padding:4px; padding-left 10px;"});
                    var row = $('<div/>').appendTo(container);
                    var breakpointField = $('<span/>').appendTo(row);
                    var inputValueField = $('<input/>',
                        {disabled:"", class:"node-input-breakpoint-input-value", type:"text", style:"margin-left:5px; margin-right:2px; width:36%;"}).appendTo(breakpointField);
                    if (breakpoint.mutable) {
                        inputValueField.removeAttr("disabled");
                    }
                    breakpointField.append(" => ");
                    var outputValueField = $('<input/>',
                        {class:"node-input-breakpoint-output-value", type:"text", style:"margin-left:0px; width:36%;"}).appendTo(breakpointField);
                    var finalSpan = $('<span/>', {style:"float:right; margin-top:3px; margin-right:10px;"}).appendTo(row);
                    var mutableFlag = $('<span/>', {class:"node-input-breakpoint-mutable", style:"display:hide;"}).appendTo(row);
                    if (breakpoint.mutable) {
                        mutableFlag.attr("mutable", "true");
                        var deleteButton = $('<a/>', {href:"#", class:"btn btn-mini", style:"margin-left: 5px;"}).appendTo(finalSpan);
                        $('<i/>', {class:"icon-remove"}).appendTo(deleteButton);

                        deleteButton.click(function() {
                                container.css({"background":"#fee"});
                                container.fadeOut(300, function() {
                                        $(this).remove();
                                    });
                            });
                    } else {
                        mutableFlag.attr("mutable", "false");
                    }                   
                    if (insert === true) {
                        var last = $("#node-input-breakpoint-container").children().last();
                        var prev = last.prev();
                        inputValueField.val((Number(last.find(".node-input-breakpoint-input-value").val()) + 
                                                Number(prev.find(".node-input-breakpoint-input-value").val()))/2);
                        outputValueField.val((Number(last.find(".node-input-breakpoint-output-value").val()) +
                                                Number(prev.find(".node-input-breakpoint-output-value").val()))/2);
                        last.before(container);
                    } else {
                        inputValueField.val(breakpoint.input);
                        outputValueField.val(breakpoint.output);
                        $("#node-input-breakpoint-container").append(container);
                    }
                }
                
                $("#node-input-add-breakpoint").click(function () {
                        generateBreakpoint({input:0, output:0, mutable:true}, true);
                        $("#node-input-breakpoint-container-div").scrollTop($("#node-input-breakpoint-container-div").get(0).scrollHeight);
                    });
                    
                for (var i = 0; i < this.breakpoints.length; i++) {
                    var breakpoint = this.breakpoints[i];
                    generateBreakpoint(breakpoint, false);
                }
                
                // Handle resizing the Input Scaling div when the dialog is resized - this isn't quite right!
                function switchDialogResize(ev, ui) {
                    $("#node-input-breakpoint-container-div").css("height", (ui.size.height - 299) + "px");
                };

                $("#dialog").on("dialogresize", switchDialogResize);
                $("#dialog").one("dialogopen", function (ev) {
                        var size = $("#dialog").dialog('option', 'sizeCache-switch');
                        if (size) {
                            switchDialogResize(null, { size:size });
                        }
                    });
                $("#dialog").one("dialogclose", function(ev, ui) {
                        $("#dialog").off("dialogresize", switchDialogResize);
                    });
            },
        oneditsave: function() {
                var breakpoints = $("#node-input-breakpoint-container").children();
                var node = this;
                node.breakpoints = [];
                breakpoints.each(function (i) {
                        var breakpoint = $(this);
                        var r = {};
                        r.input = Number(breakpoint.find(".node-input-breakpoint-input-value").val());
                        r.output = Number(breakpoint.find(".node-input-breakpoint-output-value").val());
                        r.mutable = breakpoint.find(".node-input-breakpoint-mutable").attr("mutable") == "true";
                        node.breakpoints.push(r);
                    });
                node.breakpoints = node.breakpoints.sort(function (a, b) { return a.input - b.input; });
            }
        });
</script>

<!-- Edit dialog for bbb-discrete-in -->
<script type="text/x-red" data-template-name="bbb-discrete-in">
   <div class="form-row">
       <label for="node-input-pin"><i class="fa fa-asterisk"></i>Input pin</label>
       <select type="text" id="node-input-pin" style="width: 200px;">
           <option value="">select pin</option>
           <option value="P8_7">GPIO2_2 (P8 pin 7)</option>
           <option value="P8_8">GPIO2_3 (P8 pin 8)</option>
           <option value="P8_9">GPIO2_5 (P8 pin 9)</option>
           <option value="P8_10">GPIO2_4 (P8 pin 10)</option>
           <option value="P8_11">GPIO1_13 (P8 pin 11)</option>
           <option value="P8_12">GPIO1_12 (P8 pin 12)</option>
           <option value="P8_13">GPIO0_23 (P8 pin 13)</option>
           <option value="P8_14">GPIO0_26 (P8 pin 14)</option>
           <option value="P8_15">GPIO1_15 (P8 pin 15)</option>
           <option value="P8_16">GPIO1_14 (P8 pin 16)</option>
           <option value="P8_17">GPIO0_27 (P8 pin 17)</option>
           <option value="P8_18">GPIO2_1 (P8 pin 18)</option>
           <option value="P8_19">GPIO0_22 (P8 pin 19)</option>
           <option value="P8_26">GPIO1_29 (P8 pin 26)</option>
           <option value="P9_11">GPIO0_30 (P9 pin 11)</option>
           <option value="P9_12">GPIO1_28 (P9 pin 12)</option>
           <option value="P9_13">GPIO0_31 (P9 pin 13)</option>
           <option value="P9_14">GPIO1_18 (P9 pin 14)</option>
           <option value="P9_15">GPIO1_16 (P9 pin 15)</option>
           <option value="P9_16">GPIO1_19 (P9 pin 16)</option>
           <option value="P9_17">GPIO0_5 (P9 pin 17)</option>
           <option value="P9_18">GPIO0_4 (P9 pin 18)</option>
           <option value="P9_21">GPIO0_3 (P9 pin 21)</option>
           <option value="P9_22">GPIO0_2 (P9 pin 22)</option>
           <option value="P9_23">GPIO1_17 (P9 pin 23)</option>
           <option value="P9_24">GPIO0_15 (P9 pin 24)</option>
           <option value="P9_26">GPIO0_14 (P9 pin 26)</option>
           <option value="P9_27">GPIO3_19 (P9 pin 27)</option>
           <option value="P9_30">GPIO3_16 (P9 pin 30)</option>
           <option value="P9_41">GPIO0_20 (P9 pin 41)</option>
           <option value="P9_42">GPIO0_7 (P9 pin 42)</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-activeLow">Active low</label>
        <input type="checkbox" id="node-input-activeLow" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-debounce">Debounce</label>
        <input type="checkbox" id="node-input-debounce" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-outputOn">Output on</label>
        <select type="text" id="node-input-outputOn" style="width: 200px;">
           <option value="both">both changes</option>
           <option value="rising">0 to 1 change only</option>
           <option value="falling">1 to 0 change only</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-updateInterval"><i class="fa fa-repeat"></i> Update at</label>
        <input id="node-input-updateInterval" type="text" style="width: 65px">
        <label>sec intervals</label>
    </div>
    <div class="form-row">
        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Help text for bbb-discrete-in -->
<script type="text/x-red" data-help-name="bbb-discrete-in">
<p>
Discrete input for the Beaglebone Black. Sends a message with payload 0 or 1 on the
first output when the pin changes state, and logs the total time in the active state.
</p>
<p>
Sends a message with a payload of the current total active time
(in seconds) on the second output at selectable intervals. An input message with topic 'load'
and a numeric payload will set the total active time to that value: any other input message
will reset it to zero.
</p>
<p>
The active state may be set to be high or low: this only affects the calculation
of the active time, not the pin state value sent on the first output.
</p>
<p>
The pin state messages may be generated for both directions of change, or for just 0 to 1
or just 1 to 0 changes. This is useful to generate a single message from a button
press. When using buttons or switches, enable debouncing to improve reliability.
</p>
</script>

<!-- Register bbb-discrete-in node -->
<script type="text/javascript">
    RED.nodes.registerType('bbb-discrete-in', {
        category: 'advanced-input', // the palette category
        color:"#de7224",
        defaults: {                 // defines the editable properties of the node
            pin: { value:"", required:true },
            activeLow: { value:false, required:true },
            debounce: { value:false, required:true },
            outputOn: { value:"both", required:true },
            updateInterval: { value:60, required:true, validate:RED.validators.number() },
            topic: { value:"" },
            name: { value:"" }
        },
        inputs:1,                   // set the number of inputs - only 0 or 1
        outputs:2,                  // set the number of outputs - 0 to n
        icon: "BBB.png",            // set the icon (held in public/icons)
        label: function() {         // sets the default label contents
            return this.name || "bbb-discrete-in: " + this.pin;
        },
        labelStyle: function() {    // sets the class to apply to the label
            return this.name ? "node_label_italic" : "";
        }
    });
</script>

<!-- Edit dialog for bbb-pulse-in -->
<script type="text/x-red" data-template-name="bbb-pulse-in">
   <div class="form-row">
       <label for="node-input-pin"><i class="fa fa-asterisk"></i>Input pin</label>
       <select type="text" id="node-input-pin" style="width: 200px;">
           <option value="">select pin</option>
           <option value="P8_7">GPIO2_2 (P8 pin 7)</option>
           <option value="P8_8">GPIO2_3 (P8 pin 8)</option>
           <option value="P8_9">GPIO2_5 (P8 pin 9)</option>
           <option value="P8_10">GPIO2_4 (P8 pin 10)</option>
           <option value="P8_11">GPIO1_13 (P8 pin 11)</option>
           <option value="P8_12">GPIO1_12 (P8 pin 12)</option>
           <option value="P8_13">GPIO0_23 (P8 pin 13)</option>
           <option value="P8_14">GPIO0_26 (P8 pin 14)</option>
           <option value="P8_15">GPIO1_15 (P8 pin 15)</option>
           <option value="P8_16">GPIO1_14 (P8 pin 16)</option>
           <option value="P8_17">GPIO0_27 (P8 pin 17)</option>
           <option value="P8_18">GPIO2_1 (P8 pin 18)</option>
           <option value="P8_19">GPIO0_22 (P8 pin 19)</option>
           <option value="P8_26">GPIO1_29 (P8 pin 26)</option>
           <option value="P9_11">GPIO0_30 (P9 pin 11)</option>
           <option value="P9_12">GPIO1_28 (P9 pin 12)</option>
           <option value="P9_13">GPIO0_31 (P9 pin 13)</option>
           <option value="P9_14">GPIO1_18 (P9 pin 14)</option>
           <option value="P9_15">GPIO1_16 (P9 pin 15)</option>
           <option value="P9_16">GPIO1_19 (P9 pin 16)</option>
           <option value="P9_17">GPIO0_5 (P9 pin 17)</option>
           <option value="P9_18">GPIO0_4 (P9 pin 18)</option>
           <option value="P9_21">GPIO0_3 (P9 pin 21)</option>
           <option value="P9_22">GPIO0_2 (P9 pin 22)</option>
           <option value="P9_23">GPIO1_17 (P9 pin 23)</option>
           <option value="P9_24">GPIO0_15 (P9 pin 24)</option>
           <option value="P9_26">GPIO0_14 (P9 pin 26)</option>
           <option value="P9_27">GPIO3_19 (P9 pin 27)</option>
           <option value="P9_30">GPIO3_16 (P9 pin 30)</option>
           <option value="P9_41">GPIO0_20 (P9 pin 41)</option>
           <option value="P9_42">GPIO0_7 (P9 pin 42)</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-countType">Count</label>
        <select type="text" id="node-input-countType" style="width: 100px;">
            <option value="pulse">pulses</option>
            <option value="edge">edges</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-countUnit">Scaling</label>
        <input id="node-input-countUnit" type="text" style="width: 65px">
        <label style="width: 60%"> units per count</label>
    </div>
    <div class="form-row">
        <label for="node-input-countRate">Rate</label>
        <input id="node-input-countRate" type="text" style="width: 65px">
        <label style="width: 60%"> units per count/second</label>
    </div>
    <div class="form-row">
        <label for="node-input-updateInterval"><i class="fa fa-repeat"></i> Update at</label>
        <input id="node-input-updateInterval" type="text" style="width: 65px">
        <label>sec intervals</label>
    </div>
    <div class="form-row">
        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Help text for bbb-pulse-in -->
<script type="text/x-red" data-help-name="bbb-pulse-in">
<p>
Pulse input for the Beaglebone Black. Counts input pulses or pulse edges: outputs
total counts and the rate of counts/sec, with scaling.
</p>
<p>
Sends the total count message on the first output, and the current count
rate message on the second output, at the chosen interval. An input message with topic 'load'
and a numeric payload will set the total count to that value (no scaling is applied):
any other input message will reset it to zero.
</p>
</script>

<!-- Register bbb-pulse-in node -->
<script type="text/javascript">
    RED.nodes.registerType('bbb-pulse-in', {
        category: 'advanced-input', // the palette category
        color:"#de7224",
        defaults: {                 // defines the editable properties of the node
            pin: { value:"", required:true },
            countType: { value:"pulse", required:true },
            countUnit: { value:1, required:true, validate:RED.validators.number() },
            countRate: { value:1, required:true, validate:RED.validators.number() },
            updateInterval: { value:2, required:true, validate:RED.validators.number() },
            topic: { value:"" },
            name: { value:"" }
        },
        inputs:1,                   // set the number of inputs - only 0 or 1
        outputs:2,                  // set the number of outputs - 0 to n
        icon: "BBB.png",            // set the icon (held in public/icons)
        label: function() {         // sets the default label contents
            return this.name || "bbb-pulse-in: " + this.pin;
        },
        labelStyle: function() {    // sets the class to apply to the label
            return this.name ? "node_label_italic" : "";
        }
    });
</script>

<!-- Edit dialog for bbb-discrete-out -->
<script type="text/x-red" data-template-name="bbb-discrete-out">
   <div class="form-row">
       <label for="node-input-pin"><i class="fa fa-asterisk"></i>Output pin</label>
       <select type="text" id="node-input-pin" style="width: 200px;">
           <option value="">select pin</option>
           <option value="P8_7">GPIO2_2 (P8 pin 7)</option>
           <option value="P8_8">GPIO2_3 (P8 pin 8)</option>
           <option value="P8_9">GPIO2_5 (P8 pin 9)</option>
           <option value="P8_10">GPIO2_4 (P8 pin 10)</option>
           <option value="P8_11">GPIO1_13 (P8 pin 11)</option>
           <option value="P8_12">GPIO1_12 (P8 pin 12)</option>
           <option value="P8_13">GPIO0_23 (P8 pin 13)</option>
           <option value="P8_14">GPIO0_26 (P8 pin 14)</option>
           <option value="P8_15">GPIO1_15 (P8 pin 15)</option>
           <option value="P8_16">GPIO1_14 (P8 pin 16)</option>
           <option value="P8_17">GPIO0_27 (P8 pin 17)</option>
           <option value="P8_18">GPIO2_1 (P8 pin 18)</option>
           <option value="P8_19">GPIO0_22 (P8 pin 19)</option>
           <option value="P8_26">GPIO1_29 (P8 pin 26)</option>
           <option value="P9_11">GPIO0_30 (P9 pin 11)</option>
           <option value="P9_12">GPIO1_28 (P9 pin 12)</option>
           <option value="P9_13">GPIO0_31 (P9 pin 13)</option>
           <option value="P9_14">GPIO1_18 (P9 pin 14)</option>
           <option value="P9_15">GPIO1_16 (P9 pin 15)</option>
           <option value="P9_16">GPIO1_19 (P9 pin 16)</option>
           <option value="P9_17">GPIO0_5 (P9 pin 17)</option>
           <option value="P9_18">GPIO0_4 (P9 pin 18)</option>
           <option value="P9_21">GPIO0_3 (P9 pin 21)</option>
           <option value="P9_22">GPIO0_2 (P9 pin 22)</option>
           <option value="P9_23">GPIO1_17 (P9 pin 23)</option>
           <option value="P9_24">GPIO0_15 (P9 pin 24)</option>
           <option value="P9_26">GPIO0_14 (P9 pin 26)</option>
           <option value="P9_27">GPIO3_19 (P9 pin 27)</option>
           <option value="P9_30">GPIO3_16 (P9 pin 30)</option>
           <option value="P9_41">GPIO0_20 (P9 pin 41)</option>
           <option value="P9_42">GPIO0_7 (P9 pin 42)</option>
           <option value="USR0">User LED 0</option>
           <option value="USR1">User LED 1</option>
           <option value="USR2">User LED 2</option>
           <option value="USR3">User LED 3</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-inverting">Inverting</label>
        <input type="checkbox" id="node-input-inverting" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-toggle">Toggle state</label>
        <input type="checkbox" id="node-input-toggle" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-defaultState">Startup as</label>
        <select type="text" id="node-input-defaultState" style="width: 80px;">
           <option value="0">0</option>
           <option value="1">1</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Help text for bbb-discrete-out -->
<script type="text/x-red" data-help-name="bbb-discrete-out">
<p>
Directly control an output pin on the Beaglebone Black.
</p>
<p>
Sets the output pin high or low depending on the payload of the input message. Numeric
payloads > 0.5 are 'high' (1), payloads <= 0.5 are 'low' (0). Other payloads which
evaluate to true are 'high', if not then 'low'. Selecting the Inverting checkbox will
switch the sense of the pin output.
</p>
<p>
If the Toggle state checkbox is checked, the message content is ignored: successive
messages cause the pin to toggle between 0 and 1.
</P>
<p>
The pin will be initially set to the given Startup state until the first message arrives:
the Inverting property is not applied to this value.
</p>
</script>

<!-- Register bbb-discrete-out node -->
<script type="text/javascript">
    RED.nodes.registerType('bbb-discrete-out', {
        category: 'advanced-input', // the palette category
        color:"#de7224",
        defaults: {                 // defines the editable properties of the node
            pin: { value:"", required:true },
            inverting: { value:false, required:true },
            toggle: { value:false, required:true },
            defaultState: { value:"0", required:true },
            name: { value:"" }
        },
        inputs:1,                   // set the number of inputs - only 0 or 1
        outputs:1,                  // set the number of outputs - 0 to n
        icon: "BBB.png",            // set the icon (held in public/icons)
        align:"right",
        label: function() {         // sets the default label contents
            return this.name || "bbb-discrete-out: " + this.pin;
        },
        labelStyle: function() {    // sets the class to apply to the label
            return this.name ? "node_label_italic" : "";
        }
    });
</script>

<!-- Edit dialog for bbb-pulse-out -->
<script type="text/x-red" data-template-name="bbb-pulse-out">
   <div class="form-row">
       <label for="node-input-pin"><i class="fa fa-asterisk"></i>Output pin</label>
       <select type="text" id="node-input-pin" style="width: 200px;">
           <option value="">select pin</option>
           <option value="P8_7">GPIO2_2 (P8 pin 7)</option>
           <option value="P8_8">GPIO2_3 (P8 pin 8)</option>
           <option value="P8_9">GPIO2_5 (P8 pin 9)</option>
           <option value="P8_10">GPIO2_4 (P8 pin 10)</option>
           <option value="P8_11">GPIO1_13 (P8 pin 11)</option>
           <option value="P8_12">GPIO1_12 (P8 pin 12)</option>
           <option value="P8_13">GPIO0_23 (P8 pin 13)</option>
           <option value="P8_14">GPIO0_26 (P8 pin 14)</option>
           <option value="P8_15">GPIO1_15 (P8 pin 15)</option>
           <option value="P8_16">GPIO1_14 (P8 pin 16)</option>
           <option value="P8_17">GPIO0_27 (P8 pin 17)</option>
           <option value="P8_18">GPIO2_1 (P8 pin 18)</option>
           <option value="P8_19">GPIO0_22 (P8 pin 19)</option>
           <option value="P8_26">GPIO1_29 (P8 pin 26)</option>
           <option value="P9_11">GPIO0_30 (P9 pin 11)</option>
           <option value="P9_12">GPIO1_28 (P9 pin 12)</option>
           <option value="P9_13">GPIO0_31 (P9 pin 13)</option>
           <option value="P9_14">GPIO1_18 (P9 pin 14)</option>
           <option value="P9_15">GPIO1_16 (P9 pin 15)</option>
           <option value="P9_16">GPIO1_19 (P9 pin 16)</option>
           <option value="P9_17">GPIO0_5 (P9 pin 17)</option>
           <option value="P9_18">GPIO0_4 (P9 pin 18)</option>
           <option value="P9_21">GPIO0_3 (P9 pin 21)</option>
           <option value="P9_22">GPIO0_2 (P9 pin 22)</option>
           <option value="P9_23">GPIO1_17 (P9 pin 23)</option>
           <option value="P9_24">GPIO0_15 (P9 pin 24)</option>
           <option value="P9_26">GPIO0_14 (P9 pin 26)</option>
           <option value="P9_27">GPIO3_19 (P9 pin 27)</option>
           <option value="P9_30">GPIO3_16 (P9 pin 30)</option>
           <option value="P9_41">GPIO0_20 (P9 pin 41)</option>
           <option value="P9_42">GPIO0_7 (P9 pin 42)</option>
           <option value="USR0">User LED 0</option>
           <option value="USR1">User LED 1</option>
           <option value="USR2">User LED 2</option>
           <option value="USR3">User LED 3</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-pulseTime"><i class="fa fa-repeat"></i> Pulse time</label>
        <input id="node-input-pulseTime" type="text" style="width: 65px">
        <label> seconds</label>
    </div>
    <div class="form-row">
        <label for="node-input-retriggerable">Retriggerable</label>
        <input type="checkbox" id="node-input-retriggerable" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-pulseState">Pulse state</label>
        <select type="text" id="node-input-pulseState" style="width: 80px;">
           <option value="0">0</option>
           <option value="1">1</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>

<!-- Help text for bbb-pulse-out -->
<script type="text/x-red" data-help-name="bbb-pulse-out">
<p>
Pulse an output pin on the Beaglebone Black.
</p>
<p>
Pulses the output pin for the set time after receiving an input message, unless the
message has a topic including the text 'time' and a numeric payload. In this case, the
the pulse time will be the value of the payload in seconds. If the time from either
source is < 0.001 seconds, no pulse is generated.
</p>
<p>
In retriggerable mode, a second message within the pulse period will extend the duration
of the pulse by the time value: in non-retriggerable mode, input messages arriving during
the duration of the pulse are ignored.
</p>
<p>
The pin state of the pulse may be set to either 0 or 1: the output pin will switch
back to the other state after the pulse time. An output message is generated each time
the pin changes state: its payload is the new state (0 or 1).
</p>
</script>

<!-- Register bbb-pulse-out node -->
<script type="text/javascript">
    RED.nodes.registerType('bbb-pulse-out', {
        category: 'advanced-input', // the palette category
        color:"#de7224",
        defaults: {                 // defines the editable properties of the node
            pin: { value:"", required:true },
            pulseTime: { value:1, required:true, validate:RED.validators.number() },
            retriggerable: { value:false, required:true },
            pulseState: { value:"1", required:true },
            name: { value:"" }
        },
        inputs:1,                   // set the number of inputs - only 0 or 1
        outputs:1,                  // set the number of outputs - 0 to n
        icon: "BBB.png",            // set the icon (held in public/icons)
        align:"right",
        label: function() {         // sets the default label contents
            return this.name || "bbb-pulse-out: " + this.pin;
        },
        labelStyle: function() {    // sets the class to apply to the label
            return this.name ? "node_label_italic" : "";
        }
    });
</script>