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RTL-SDR Weather

This project aims to make a simple adapter to convert output between an RTL-SDR software defined radio and a PostgreSQL database.

This allows for Grafana to query and display interesting and insightful graphs.

Requirements

  • rtl_433
  • Python3
  • psycopg2
  • PostgreSQL
  • Grafana

Usage

This program operates as a 'middleware' for RTL_433 and can receive JSON output.

Edit the postgres-433.py script, line 104, to enter the relevant credentials.

Initiate the program as such:

rtl_433 -c ~/.config.conf -F json | tee /dev/stderr | ./postgres-433.py

This will direct rtl_433 to output the information as json, then the data is teed to the terminal (so received signals may be monitored) and finally passed into the script.

If no errors are presented, then the data should be streaming to the Postgres DB.

From there, you may run Grafana and query the data for graphing. An example dashboard weather.json file has been included for quick reference.

Known Limitations

Presently, the following limitations exist:

  • The middleware software only knows how to manipulate Accurite data.
  • All data is written as JSON to a single column until a proper schema can be defined