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 ...
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 ...
A group of scientists from Egypt’s Tanta University has developed a novel, wireless system for monitoring and controlling PV systems. It combines a custom-made printed circuit board (PCB) attached to ...
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