node-red-contrib-sds011/sds011-node/sds011-node.html

Node-RED node to enable a communication with the SDS011 sensor which is connected via UART/serial connection. This node was designed with the RPi in mind but should work with any serial port.

<script type="text/javascript">
  RED.nodes.registerType('rpi-sds011', {
    category: 'Raspberry Pi',
    defaults: {
      name: {value: 'SDS011'},
      port: {value: '/dev/serial0', required: true},
    },
    inputs: 1,
    inputLabels: 'Command',
    outputs: 3,
    outputLabels: ['PM2.5', 'PM10', 'info'],
    color: '#E9967A',
    icon: "serial.png",
    label: function() {
      return this.name || 'SDS011';
    },
  });
</script>

<script type="text/x-red" data-template-name="rpi-sds011">
  <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>
  <div class="form-row">
    <label for="node-input-port"><i class="icon-tag"></i>Device (e.g.RPi3: /dev/serial0)</label>
    <input type="text" id="node-input-port" placeholder="/dev/serial0">
  </div>
</script>

<script type="text/x-red" data-help-name="rpi-sds011">
  <h3>Outputs</h3>
  <ol class="node-ports">
    <li>PM2.5
      <dl class="message-properties">
        <dt>payload: <span class="property-type">number</span></dt>
        <dd>PM2.5 value in ug/m3</dd>
      </dl>
    </li>
    <li>PM10
      <dl class="message-properties">
        <dt>payload: <span class="property-type">number</span></dt>
        <dd>PM10 value in ug/m3</dd>
      </dl>
    </li>
    <li>Info
      <dl class="message-properties">
        <dt>payload: <span class="property-type">string</span></dt>
        <dd>Additional sensor information, such as measure frequency, working mode etc.</dd>
      </dl>
    </li>
  </ol>
  <h3>Input</h3>
  <ol class="node-ports">
    <li>Commands
      <dl class="message-properties">
        <dt>payload: <span class="property-type">json | string</span></dt>
        <dd>
          setDataReportingMode(parameter);
          getDataReportingMode();
          queryData();
          setDeviceId(parameter);
          setStatus(parameter);
          getStatus();
          setWorkingPeriod(parameter);
          setContinuousMode()
          getWorkingPeriod();
          checkFirmwareVersion();
        </dd>
      </dl>
    </li>
  </ol>
</script>