I'm using the Arduino UNO Wifi Developer edition and trying to get MQTT running on it. As per the documentation here http://www.arduino.org/learning/reference/ciao-mqtt it requires setting up the connector by change the mqtt conf file. The question is how do i do that? What are the steps to update this file and where does this file even reside?
It shows the path of the file but i'm not sure how to reach that file, does this file reside on the Arduino board or is it on the Arduino IDE file system?
If it is on the Arduino board how do it edit the file there, using what software?