MQTT Serial Software Installation on Linux
Because Mosquitto does not have serial interface capability we developed a Python program that transfers MQTT messages between a serial port and Mosquitto.
[Install instructions here]
Now that we have the program installed and a connection made between our serial interface and Mosquitto we can check if it is working. You need a module connected that is running an MQTT sketch.
Open a terminal window and type mosquitto_sub -v -t 'EFM/#' into it.
You should see messages from your module printing out like this.