I am currently working in a project where I have to publish and possibly subscribe to MQTT topic over GSM network (I am using ESP8266 and Ai Thinker A6 GSM Module). So far I am able to publish message to the broker once using MQTT Example code from TinyGSM library...
Now we have to program our ESP8266 Module using the Arduino IDE. In this program we simply have to connect to the Router and call for the HTTPS URL that we just demonstrated above and then the message will be triggered by that URL. The complete program is given at the end of this tut...