node-red-nodes/hardware/PiFace/37-rpi-piface.html

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<script type="text/x-red" data-template-name="rpi-piface in">
    <div class="form-row">
        <label for="node-input-pin"><i class="fa fa-asterisk"></i> GPIO Pin</label>
        <select type="text" id="node-input-pin" style="width: 150px;">
            <option value="-" disabled>select pin</option>
            <option value="Button S1">Button S1</option>
            <option value="Button S2">Button S2</option>
            <option value="Button S3">Button S3</option>
            <option value="Button S4">Button S4</option>
            <option value="Input 5">Input 5</option>
            <option value="Input 6">Input 6</option>
            <option value="Input 7">Input 7</option>
            <option value="Input 8">Input 8</option>
            <option value="Output0">Output 0</option>
            <option value="Output1">Output 1</option>
            <option value="Output2">Output 2</option>
            <option value="Output3">Output 3</option>
            <option value="Output4">Output 4</option>
            <option value="Output5">Output 5</option>
            <option value="Output6">Output 6</option>
            <option value="Output7">Output 7</option>
        </select>
    </div>
    <div class="form-row">
        <label for="node-input-intype"><i class="fa fa-expand"></i> Resistor?</label>
        <select type="text" id="node-input-intype" style="width: 150px;">
        <option value="up">pullup</option>
        <option value="tri">none</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>
    <div class="form-tips">Tip: Only Digital I/O is supported - input must be 0 or 1.</div>
</script>

<script type="text/x-red" data-help-name="rpi-piface in">
    <p>Raspberry Pi PiFace input node. Generates a <b>msg.payload</b> with either a 0 or 1 depending on the state of the input pin.</p>
    <p>You may also enable the input pullup resistor if required.</p>
    <p>The <b>msg.topic</b> is set to <i>piface/{the pin number}</i></p>
    <p>Requires the WiringPi gpio command in order to work.</p>
    <p><b>Note:</b> This node currently polls the pin every 250mS. This is not ideal as it loads the cpu.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('rpi-piface in',{
        category: 'advanced-input',
        color:"#c6dbef",
        defaults: {
            name: { value:"" },
            intype: { value: "up" },
            pin: { value:"",required:true},
        },
        inputs:0,
        outputs:1,
        icon: "rpi.png",
        label: function() {
            return this.name||"PiFace: "+this.pin;
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>


<script type="text/x-red" data-template-name="rpi-piface out">
    <div class="form-row">
        <label for="node-input-pin"><i class="fa fa-asterisk"></i> GPIO Pin</label>
        <select type="text" id="node-input-pin" style="width: 150px;">
            <option value="-" disabled>select pin</option>
            <option value="LED 0 / Relay 0">LED 0 / Relay 0</option>
            <option value="LED 1 / Relay 1">LED 1 / Relay 1</option>
            <option value="LED 2">LED 2</option>
            <option value="LED 3">LED 3</option>
            <option value="LED 4">LED 4</option>
            <option value="LED 5">LED 5</option>
            <option value="LED 6">LED 6</option>
            <option value="LED 7">LED 7</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>
    <div class="form-tips">Tip: Only Digital I/O is supported - input must be 0 or 1.</div>
</script>

<script type="text/x-red" data-help-name="rpi-piface out">
    <p>Raspberry Pi PiFace output node. The PiFace board must be fitted.</p>
    <p>Will set the selected relay, LED, or pin on or off depending on the value passed in. Expects a <b>msg.payload</b> with either a 1 or 0 (or true or false).</p>
    <p>Requires the WiringPi gpio command in order to work.</p>
</script>

<script type="text/javascript">
    RED.nodes.registerType('rpi-piface out',{
        category: 'advanced-output',
        color:"#c6dbef",
        defaults: {
            name: { value:"" },
            pin: { value:"",required:true},
        },
        inputs:1,
        outputs:0,
        icon: "rpi.png",
        align: "right",
        label: function() {
            return this.name||"PiFace: "+this.pin;
        },
        labelStyle: function() {
            return this.name?"node_label_italic":"";
        }
    });
</script>