A fascinating article from Philip N. Howard at George Washington University asserts that the number of connected devices surpassed the number of people on the planet in 2014 (Fig. 1). The author ...

Setting the foundation for what may be a multitrillion-dollar marketplace, OASIS (the Organization for the Advancement of Structured Information Standards) has declared MQTT (the Message Queuing ...

Last time on Minimal MQTT, we used a Raspberry Pi to set up an MQTT broker — the central hub of a home data network. Now it’s time to add some sensor and display nodes and get this thing running. So ...

The world is instrumented with sensors, and we’re just now realizing what we can do with this information and how we can apply analytics to help people make the right decisions for their business. The ...

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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 ...