Curious to know how to access your industrial data over MQTT?
If so, check out Subscribe and Publish with MQTT Nodes, groov & SNAP PAC, our newest step-by-step OptoTutorial.
In it, you’ll learn how to:
- Use Node-RED to subscribe and publish to an MQTT message stream
- Parse message strings
- Use groov to display data from a message
- Push data from groov and from a SNAP PAC controller to a message stream
For most of the activities, all you need are a groov Box running groov R3.3 or higher, and a few minutes to work through the examples.
The tutorial is available at http://www.opto22.com/site/documents/doc_drilldown.aspx?aid=4632.