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 ...
If you read Hackaday, it is a good bet you’ve heard of MQTT — Message Queueing Telemetry Transport. If you’ve not used MQTT before, you should check out Ably’s [Kayla Matthews’] post ...