MQTT-Python-Remote

Service to remote control linux devices over MQTT.

Install

• pip install paho-mqtt
• Copy mqtt_agent.py to /opt/mqtt_agent/mqtt_agent.py
• Copy mqtt_agent.service to /etc/systemd/system/mqtt_agent.service
• Set your User and Group in mqtt_agent.service
• sudo systemctl daemon-reload
• sudo systemctl enable mqtt_agent
• sudo systemctl start mqtt_agent
• Optional: for media keys install xdotool

Change MQTT commands

MQTT Commands are defined in mqtt_agent.py:

actions = {
    # (device, state) : command
    # mqtt should look like:
    # msg.topic     = TOPIC/device
    # msg.payload   = state


    # hardware
    ("monitor", "on") : "xrandr lorem ipsum",
    ("monitor", "off") : "xrandr lorem ipsum",
    ("laptop", "off") : "shutdown now",
    
    # keys
    ("media", "pause") : "xdotool key XF86AudioPlay",
    ("media", "next") : "xdotool key XF86AudioNext",
    ("media", "last") : "xdotool key XF86AudioPrev",
    ("media", "mute") : "xdotool key XF86AudioMute",
    ("media", "lower") : "xdotool key XF86AudioLowerVolume",
    ("media", "raise") : "xdotool key XF86AudioRaiseVolume",
}

Node-RED integration

Just add a function, set payload and topic and direct everything to your mqtt node:

Credits

• https://smarthome-blogger.de/blog/tutorial/python-mqtt-tutorial/#mqtt-library
• https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units