I have a Module Gsm Sim800L and I must Publish Data to a nodeRed Server Of IBM Bluemix.
I used the library (Arduino MQTT Library for SIM800 GSM Modem) at this Link : https://elementztechblog.wordpress.com/2016/07/18/arduino-mqtt-library-for-sim800-gsm-modem/
The Problem is that I don't know what I must change to connect and publish to a IBM BlueMix Server Via MQTT.
If you have any suggestions, please let me know.