node-red-contrib-tinkerforge/bricklets/IO4.html

Node-RED nodes to access Tinkerforge sensors

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<script type="text/x-red" data-template-name="TinkerForge IO-4">
  <div class="form-row">
        <label for="node-input-device"><i class="fa fa-tasks"></i> Device</label>
        <input type="text" id="node-input-device" >
    </div>
    <div class="form-row">
      <label for="node-input-sensor"><i class="fa"></i> Sensor</label>
      <select id="node-input-sensor"></select>
    </div>
    <div class="form-row">
      <label for="node-input-moded0"><i class="fa"></i>Pin 0</label>
      <select id="node-input-moded0">
        <option value="input">Input</option>
        <option value="output">Ouput</option>
      </select>
    </div>
    <div class="form-row">
      <label for="node-input-moded1"><i class="fa"></i>Pin 1</label>
      <select id="node-input-moded1">
        <option value="input">Input</option>
        <option value="output">Ouput</option>
      </select>
    </div>
    <div class="form-row">
      <label for="node-input-moded2"><i class="fa"></i>Pin 2</label>
      <select id="node-input-moded2">
        <option value="input">Input</option>
        <option value="output">Ouput</option>
      </select>
    </div>
    <div class="form-row">
      <label for="node-input-moded3"><i class="fa"></i>Pin 3</label>
      <select id="node-input-moded3">
        <option value="input">Input</option>
        <option value="output">Ouput</option>
      </select>
    </div>
    <div class="form-row">
        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
    </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="IO-4">
    </div>
</script>

<script type="text/x-red" data-help-name="TinkerForge IO-4">
  <p>This node controls the Digital Input Output node IO-4</p>
  <p>Each pin needs to be configured as either input or output.</p>
  <p>When an input is configured it outputs messages when the state of any of the inputs changes and
  by default it sets all inputs to interrupts.
  <p>It outputs 1 message per input state change. The payload is 1 or 0 representing
  true or false respectively. You can identify which input changed by the postfix
  on the <i>msg.topic</i>.</p>
  <p>e.g. when input 0 goes high a message will be sent with payload = 1 and topic
  set to "topic-prefix/0", when the input does low again another message with
  payload = 0 and the same topic.</p>
  <p>When an output is configured in one ore more pins, the node sets the outputs high or low based on the
  incoming message.</p>
  <p>The output defaults to false on initial startup and will be set according to the incoming
  messages in the following format:</p>
  <li>A true or false value together with a subtopic /0-3 for each output:
  <pre>/3 : msg.payload : boolean
  false</pre></li>
  <li>An array of 0/1 or true/false
  <pre>[0,0,0,1]</pre></li>
  <p>This node has got an input and an output connection and depending on how it is setup, it will
  ignore any output commands if it is setup as an input.</p>
</script>

<script type="text/javascript">

  RED.nodes.registerType("TinkerForge IO-4",{
    category: 'TinkerForge',
    defaults:{
      device: {type: "TinkerForgeConfig", required: true},
      sensor: {required: true},
      moded0: {value: 'input', required: true},
      moded1: {value: 'input', required: true},
      moded2: {value: 'input', required: true},
      moded3: {value: 'input', required: true},
      name: {},
      topic: {}
    },
    outputs: 1,
    inputs: 1,
    label: function() {
      return this.name || "TinkerForge IO-4";
    },
    paletteLabel: 'IO-4',
    color: 'gray',
    icon: 'tf.png',
    oneditprepare: function() {
      var node = this;

      if (node.device) {
        var key = $('#node-input-device').val();
        $.getJSON('TinkerForge/' + key +"/sensors/" + 29, function(data){
          $('#node-input-sensor').find('option').remove().end();
          for (d in data) {
              $('<option/>',{
                value: data[d].uid,
                text: data[d].uid + " - " + data[d].position
              }).appendTo('#node-input-sensor');
            }
        });
      } else {
        console.log("no device");
      }

      $('#node-input-device').change(function(){
        var dev = $('#node-input-device').val();
        if (dev) {
          var key = dev;
          $.getJSON('TinkerForge/' + key +"/sensors/" + 29, function(data){
            $('#node-input-sensor').find('option').remove().end();
            for (d in data) {
              $('<option/>',{
                value: data[d].uid,
                text: data[d].uid + " - " + data[d].position
              }).appendTo('#node-input-sensor');
            }
          });
        } else {
          console.log("no device");
        }
      });

      if (node.sensor) {
        $('#node-input-sensor').val(node.sensor);
      }
    }
  });
</script>