node-red-nodes/hardware/sensehat/sensehat.html

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<script type="text/x-red" data-template-name="rpi-sensehat in">
<div class="form-row">
    <label><i class="fa fa-arrow-right"></i> Outputs</label>
    <label style="width: auto" for="node-input-motion"><input style="vertical-align: top; width: auto; margin-right: 5px;" type="checkbox" id="node-input-motion"> Motion events</label>
    <div style="padding-left: 125px; margin-top: -5px; color: #bbb;">accelerometer, gyroscope, magnetometer, compass</div>
</div>
<div class="form-row">
    <label></label>
    <label style="width: auto" for="node-input-env"><input style="vertical-align: top; width: auto; margin-right: 5px;" type="checkbox" id="node-input-env"> Environment events</label>
    <div style="padding-left: 125px; margin-top: -5px; color: #bbb;">temperature, humidity, pressure</div>
</div>
<div class="form-row">
    <label></label>
    <label style="width: auto" for="node-input-stick"><input style="vertical-align: top; width: auto; margin-right: 5px;" type="checkbox" id="node-input-stick"> Joystick events</label>
</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">
</div>
</script>

<script type="text/x-red" data-help-name="rpi-sensehat in">
<p>Raspberry Pi Sense HAT input node.</p>
<p>This node sends readings from the various sensors on the Sense HAT,
grouped into three sets; motion events, environment events and joystick events.</p>
<p><b>Motion events</b></p>
<p>Motion events include readings from the accelerometer, gyroscope and magnetometer,
as well as the current compass heading. They are sent at a rate of approximately 10
per second. The <code>topic</code> is set to <code>motion</code> and the
<code>payload</code> is an object with the following values:</p>
<ul>
    <li><code>acceleration.x/y/z</code> : the acceleration intensity in Gs</li>
    <li><code>gyroscope.x/y/z</code> : the rotational intensity in radians/s</li>
    <li><code>orientation.roll/pitch/yaw</code> : the angle of the axis in degrees</li>
    <li><code>compass</code> : the direction of North in degrees</li>
</ul>
<p><b>Environment events</b></p>
<p>Environment events include readings from the temperature, humidity and pressure
sensors. They are sent at a rate of approximately 1 per second.  The <code>topic</code>
is set to <code>environment</code> and the <code>payload</code> is an object
with the following values:</p>
<ul>
<li><code>temperature</code> : degrees Celsius</li>
<li><code>humidity</code> : percentage of relative humidity</li>
<li><code>pressure</code> : Millibars</li>
</ul>
<p><b>Joystick events</b></p>
<p>Joystick events are sent when the Sense HAT joystick is interacted with. The
<code>topic</code> is set to <code>joystick</code> and the <code>payload</code>
is an object with the following values:</p>
<ul>
    <li><code>key</code> : one of <code>UP</code>, <code>DOWN</code>, <code>LEFT</code>, <code>RIGHT</code>, <code>ENTER</code></li>
        <li><code>state</code> : the state of the key:
        <ul>
            <li><code>0</code> : the key has been released</li>
            <li><code>1</code> : the key has been pressed</li>
            <li><code>2</code> : the key is being held down</li>
        </ul>
</li>
</ul>


</script>

<script type="text/javascript">
    RED.nodes.registerType('rpi-sensehat in',{
        category: 'Raspberry Pi',
        paletteLabel: "Sense HAT",
        color:"#c6dbef",
        defaults: {
            name: { value:"" },
            motion: { value: true },
            env: { value: true },
            stick: { value: true }
        },
        inputs:0,
        outputs:1,
        icon: "rpi.png",
        label: function() {
            return this.name||"Sense HAT";
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>