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 ...

Now, let’s run Mosquitto from the command line: root@deb-01:/home/mgibbs# mosquitto 1485602498: mosquitto version 1.3.4 (build date 2014-08-17 03:38:31+0000 ...

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 ...