Reads from SDR dongle, maps ID to mosquitto topic and publishes

7 July 2018 written by Gerald Swann

This program reads from an SDR dongle using the excellent rtl_433 program and publishes the data using mosquitto_pub

Unlike the earlier bash script I used, this does not require jq to be installed on the system. Uses instead the python JSON decoder

The sensors often transmit their data 3 or 4 times per minute. Using Runme.sh, you would see all the lines in your MQTT data. This program removes the duplicate lines

Copy this python script to your rtl_433 folder

To see only the MQTT data from this program on your Home Assistant system, try this command:

mosquitto_sub -v -t 'rtl_433/#'

Now, don't publish every code that comes across. At every 30 seconds, they are too frequent. The program variable "between_time" sets minimum time between packets

New python program is sdr-mosq-v3.py

List of transmitters is separated into sdrlist.py