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 ...
Second, it needs to support MQTT well, and be properly documented so that I can implement it on a wide variety of hardware. An Arduino library is useful, but not sufficient. We’ve previously ...
OPC UA was conceived with the purpose to address this problem, but its success was only partial, and it's still not as pervasive and adopted as it should be. MQTT is changing that scenario quickly, ...