node-red-nodes/hardware/BBB/144-analog-in.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.
-->

<!-- First, the content of the edit dialog is defined.                       -->

<script type="text/x-red" data-template-name="BBB-analog-in">

   <!-- Each of the following divs creates a field in the edit dialog.       -->
   <!-- Generally, there should be an input for each property of the node.   -->
   <!-- The for and id attributes identify the corresponding property        -->
   <!-- (with the 'node-input-' prefix).                                     -->
   <!-- The available icon classes are defined in Twitter Bootstrap          -->
   <div class="form-row">
	   <label for="node-input-pin"><i class="icon-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="icon-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </div>

    <!-- By convention, most nodes have a 'name' property. The following div -->
    <!-- provides the necessary field.                                       -->
    <div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i> Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
</script>


<!-- Next, some simple help text is provided for the node.                   -->
<script type="text/x-red" data-help-name="BBB-analog-in">
   <!-- data-help-name identifies the node type this help is for             -->
   <!-- This content appears in the Info sidebar when a node is selected     -->
   <!-- The first <p> is used as the pop-up tool tip when hovering over a    -->
   <!-- node in the palette.                                                 -->
   <p>Analogue input for the Beaglebone Black. Reads an anlogue pin when triggered</p>
   <p>The output message topic is the node topic: the output message value is the
      analogue input in the range [0-1), or NaN if an read error occurs (errors are logged)</p>
</script>

<!-- Finally, the node type is registered along with all of its properties   -->
<!-- The example below shows a small subset of the properties that can be set-->
<script type="text/javascript">
    RED.nodes.registerType('BBB-analog-in',{
        category: 'advanced-input',      // the palette category
	color:"#c6abef",
        defaults: {             // defines the editable properties of the node
            name: { value:"" },   //  along with default values.
            topic: { value:"", required:true },
		pin: { value:"", required:true },
        },
        inputs:1,                // set the number of inputs - only 0 or 1
        outputs:1,               // set the number of outputs - 0 to n
        icon: "arrow-in.png",    // set the icon (held in public/icons)
        label: function() {      // sets the default label contents
            return this.name || "analog-in: " + this.pin;
        },
        labelStyle: function() { // sets the class to apply to the label
            return this.name?"node_label_italic":"";
        }
    });
</script>