A key aspect of MQTT’s (message queueing telemetry transport) architecture involves the use of an intermediary server to collect data, as it changes, from the devices it is connected to. It then ...

The convergence of Operational Technology (OT) and Informational Technology (IT) has become a strategic imperative for those organisations aiming to unlock efficiency, innovation and competitiveness.

So you’ve built a central server and filled your house with WiFi-connected nodes all speaking to each other using the MQTT protocol. In short, you’ve got the machine-to-machine side of things entirely ...

In this installment of Minimal MQTT, I’m going to cover two loose ends: one on the sensor node side, and one on the MQTT server side. Specifically, I’ll tackle the NodeMCU’s sleep mode to reduce power ...