MQTT plugins for MADS

This is a project providing Source and Sink plugins for MADS.

The plugins provides a bridge between a MQTT network and the MADS network. Compilation results in two plugins:

• mqtt2mads.plugin: A Source plugin that subscribes to a MQTT topic and publishes the received messages to the MADS network.
• mads2mqtt.plugin: A Sink plugin that receives messages from the MADS network and publishes them to a MQTT topic.

This plugin has been updated for MADS v2

Requirements

The system must provide libmosquitto and libmosquittopp libraries and development files.

Supported platforms

Currently, the supported platforms are:

• Linux
• MacOS

Installation

Linux and MacOS:

cmake -Bbuild -DCMAKE_INSTALL_PREFIX="$(mads -p)"
cmake --build build -j4
sudo cmake --install build

INI settings

The plugin supports the following settings in the INI file:

[mqtt2mads]
broker_host = "localhost" # MQTT broker host
broker_port = 1883        # MQTT broker port
silent = true             # If true, no log messages are printed
QoS = 0                   # MQTT Quality of Service
topic = "#"               # MQTT topic to subscribe to

[mads2mqtt]
broker_host = "localhost" # MQTT broker host
broker_port = 1883        # MQTT broker port
silent = true             # If true, no log messages are printed
QoS = 0                   # MQTT Quality of Service
topic = "mads"            # MQTT topic to publish to

All settings are optional; if omitted, the default values are used.

Executable demo

The plugin comes with an executable demo that can be used to test the plugin. The demo connects to a broker running on localhost, subscribes to the MQTT topic # and prints the received messages to the console.

An optional first argument is the address of a different broker (default localhost). An optional thirs argument is the broker port (default 1883)

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