Opto 22

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Subscribe and Publish with MQTT Nodes, groov & SNAP PAC


Filename: 2235_OptoTutorial_Publishing_to_MQTT.pdf
File Size: 6306 KB
Last Update: 11/30/2017

Description:

This OptoTutorial shows how to:
o Use Node-RED to subscribe and publish to an MQTT message stream
o Parse message strings
o Display data from a message in groov
o Push data from groov and from a SNAP PAC controller to a message stream

Notes:

What you need
o Node-RED and the groov Nodes (preinstalled on groov AR1 Boxes running groov R3.3 or higher).
o To complete the SNAP PAC Publishing activity, you’ll also need:
   – A SNAP PAC R- or S-series controller running SNAP PAC firmware R9.5 or higher.
   – The SNAP PAC Nodes for Node-RED.
   – PAC Project 9.5 or higher. (Both the Professional and Basic versions work with this activity.)
   – The SNAP PAC Learning Center strategy (available for free from the Opto 22 Downloads webpage).

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