For example your first channel would be v1//things/<ClientID>/data/0. In the end, this worked fine and it even supported MQTT QoS level 2. Thingspeak First off, Thingspeak has integration with MATLAB.

This video demonstrates how to set up a remote temperature monitoring system using an Arduino Uno R4 WiFi, an LM35 temperature sensor, and the MQTT protocol. The system captures ambient temperature ...