node-red-nodes/hardware/intel/mraa-gpio-pwm.html

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<script type="text/javascript">
    RED.nodes.registerType('mraa-gpio-pwm',{
        category: 'Intel gpio',
        color: '#a6bbcf',
        paletteLabel: 'pwm',
        defaults: {
            name: {value:""},
            pin:  {value:"", required: true},
            period: { value:"100", required: true }
        },
        inputs:1,
        outputs:0,
        icon: "arrow.png",
        align: "right",
        label: function() {
            if (this.pin === "14") {
                return "LED";
            } else {
                return this.name||"PWM D"+this.pin;
            }
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        },
        oneditprepare: function() {
            var pinnow = this.pin;
            $.getJSON('mraa-gpio/'+this.id,function(data) {
                var t = "unknown";
                if (data === 0) { t = "Galileo v1"; }
                if (data === 1) { t = "Galileo v2"; }
                if (data === 2) { t = "Edison Fab C"; }
                if (data === 3) { t = "DE3813 Baytrail"; }
                if (data === 4) { t = "Minnow Max"; }
                if (data === 5) { t = "Raspberry Pi"; }
                if (data === 6) { t = "Beaglebone"; }
                if (data === 7) { t = "Banana"; }
                $('#type-tip').text(t);
                $('#node-input-pin').val(pinnow);
            });
            $.getJSON('mraa-version/'+this.id,function(data) {
                $('#ver-tip').text(data);
            });

            var setstate = function () {
                if ($('#node-input-set').is(":checked")) {
                    $("#node-set-state").show();
                } else {
                    $("#node-set-state").hide();
                }
            };
            $("#node-input-set").change(function () { setstate(); });
            setstate();
        }
    });
</script>

<script type="text/x-red" data-template-name="mraa-gpio-pwm">
    <div class="form-row">
        <label for="node-input-pin"><i class="fa fa-circle"></i> Pin</label>
        <select type="text" id="node-input-pin" style="width: 250px;">
            <option value='' disabled selected style='display:none;'><span data-i18n="rpi-gpio.label.selectpin"></span></option>
            <option value="3">D3</option>
            <option value="5">D5</option>
            <option value="6">D6</option>
            <option value="9">D9</option>
            <option value="10">D10</option>
            <option value="11">D11</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-period"><i class="fa fa-clock-o"></i> Period</label>
        <input type="text" id="node-input-period" placeholder="number" style="width: 250px;"> mS
    </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" style="width: 250px;">
    </div>
    <div class="form-tips">Board : <span id="type-tip">n/a</span><br/>mraa version : <span id="ver-tip">n/a</span></div>
</script>

<script type="text/x-red" data-help-name="mraa-gpio-pwm">
    <p>A pulse width modulation (PWM) output pin for an Intel Galileo or Edison board.</p>
    <p>The <code>msg.payload</code> should contain a floating point number value
    between 0 and 1, (or a string representation thereof.)</p>
    <p>For servo control set the period to 20mS and vary the input between 0.05 and 0.10</p>
    <p><b>Note</b> : Only pins 3, 5, 6, 9, 10 & 11 support PWM output.</p>
</script>