rtl433-mqtt

This script and service uses an RTL2832U-based dongle with rtl_433 to decode packets in ISM bands and publish the information to an MQTT broker.

Requirements

• mosquitto >= 1.5
• rtl_433

sudo apt update && sudo apt install rtl_433 mosquitto-clients

mosquitto_pub will currently turn into a zombie process, accepting input from rtl_433 but not publishing the data, under certain conditions.

NOTE: This branch https://github.com/wiredlab/mosquitto/tree/pub-disconnect contains a fix on top of version 1.6.12, but is not yet merged into the upstream repository. Build and install mosquitto and friends from our pub-disconnect branch for more robust behavior under unreliable network connections.

Install

• Clone this repository somewhere convenient.

• Copy rtl433-mqtt.env.example to rtl433-mqtt.env and change the variables as appropriate. NOTE: systemd does not do variable substitution in this file!

• Edit variable PREFIX in Makefile if desired.

• sudo make

Uninstall

This will stop and disable the systemd service and remove the installed files (including the customized configuration file).

• sudo make uninstall

Local logging

The rtl433-mqtt script includes commented-out items that log the information to a local file. You will need to edit the script to enable this feature.

Also included is rtl433-mqtt.logrotate, a configuration file for using logrotate for easily rotating the log files.