A wrapper to collect data from 433MHz wireless sensors using the rtl_433 command line utility, and make it available as metrics in prometheus format.
This uses the rtl_433 project, which can support a variety of software defined radios, including the RTL-SDR, which is what I have used.
The rtl_433 command line utility will listen for broadcasts at 434MHz using OOK modulation -- which is used by a variety of wireless environmental sensors, such as the AcuRite 06002M Wireless Temperature and Humidity Sensor -- and spit them out stdout in a variety of convenient formats. This program is just a simple python wrapper that forks an rtl_433 process and collects its output, while running a webserver to serve out the collected data.
After installing the package, you can run it simply with python -m monitor_rtl433, and then visit localhost:5000.
Out-of-the box, the /sensors route will show raw data from any detected sensors, but the /metrics route will be blank.
Setting up the /metrics routes requires a little more work to define which sensors you want to generate metrics from, and how they should be defined. See examples/main.py for an example of how to create MetricDescription and MetricFilter objects and provide these to montor_rtl433.run().
