node-red-mcp23xxx/lib/mcp23008-node.html

Library to use the MCP23008 and MCP23017 I/O Expanders with the Raspberry Pi

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        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="Topic">
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    <div class="form-row">
        <label for="node-input-address"><i class="fa fa-tag"></i> Address</label>
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        <label><i class="fa fa-random"></i> Mode</label>
        <input type="checkbox" id="node-input-reverse" placeholder="Reverse" style="display: inline-block; width: auto; vertical-align: top;">
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<script type="text/x-red" data-help-name="mcp23008">
   <p><b>MCP23008</b> Output node, control the pins via topic and playload.</p>
   <p><b>Address:</b>  0x20 (default) or similar.</p>
   <p><b>Bus Number:</b> 1 (default) indicate the /dev/i2c-1 device path, but may need to be changed to 0 (/dev/i2c-0) depending on your Raspberry PI.</p>
   <p><b>Topic:</b> set to the root of the status topic, e.g. 'buss/status', a status message will be generated per pin 0..7.</p>
   <p><b>Use reverse logic:</b> is used to set MCP23008 to use reversed logic.</p>
</script>

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