input.html

<script type="text/javascript">
    RED.nodes.registerType('nibe-input',{
        category: 'input',
        color: '#e32222',
        defaults: {
            server: {value:"", type:"nibe-config"},
            name: {value:""},
            add: {value:false}
        },
        inputs:0,
        outputs:2,
        icon: "inject.svg",
        label: function() {
            return this.name||"NibePi In";
        },
        oneditsave: function() {
            let node = this;
            if ($('#node-input-add').is(':checked')) {
                add = true;
            } else {
                add = false;
            }
        }
    });
</script>

<script type="text/x-red" data-template-name="nibe-input">
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Register</label>
        <input type="text" id="node-input-name" placeholder="Register">
    </div>
    <div class="form-row">
        <label for="node-input-add"><i class="icon-bookmark"></i> Add register</label>
        <input type="checkbox" id="node-input-add">
    </div>
    <div class="form-row">
        <label for="node-input-server"><i class="icon-tag"></i> Server</label>
        <input type="text" id="node-input-server" placeholder="Server">
    </div>
</script>

<script type="text/x-red" data-help-name="nibe-input">
    <p>Test node for NibePi</p>
</script>