Editor’s Note: The MQTT lightweight messaging protocol is a fundamental part of the technical foundation of most IoT applications and their underlying services. Taken from the book, MQTT Essentials – ...
Opto 22 announces the latest firmware version 3.4 for the groov EPIC edge programmable industrial controller from Opto 22, along with firmware version 3.4 for the groov RIO edge I/O module. Both are ...
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