A prometheus exporter for the BAYM 5(80) remote kWh energy monitor.

The BAYM 5(80) monitors a circuit, reporting the voltage, amperage, power of the circuit (among other statistics). Monitoring a circuit can provide an indication of the health of the devices powered by the circuit.

Compiling

Compile the libmodbus and prometheus-cpp libraries with:

$ ./build-libmodbus.sh && ./build-prometheus-cpp.sh

Then run

$ Make

Running

Presuming your rs458 port is exposed on /dev/ttyUSB0:

$ ./powermonitoring /dev/ttyUSB0

Testing

Build the java dependencies with

$ cd test/integration && ./build-prometheus-scraper.sh

And run the tests with:

$ cd test/integration && make

The java code runs a simulation of the BAYM 5(80), which allows developers which don't have the BAYM 5(80) to work on the project.

Further Work

This repository hasn't been setup as an idiomatic git repository. The civetweb, prometheus-cpp, and libmodbus libraries are included as tar.gz files instead of as linked git submodule. This is a hold over from an earlier version of this project, when it was still being prototyped. It would be very useful to use git submodules and cmake.