mthmulders / dsmr-rs

A utility to ship "smart meter" readings over HTTP

dsmr-rs

A utility tool to ship data from a smart energy meter over HTTP.

Running

Copy the sample SupervisorD configuration to /etc/supervisor/conf.d. Issue sudo supervisorctl reload followed by sudo supervisorctl start dsmr_native_logger.

Efficiency

The standard datalogger that ships with DSMR reader is written in Python.

Using sudo pmap <pid> | tail -n 1, its memory usage is reported as 37120K. This native logger uses only 14996K, a reduction of almost 60%.

Using ps aux | grep python3, CPU usage of the Python logger is reported between 1.5% and 3% on my Raspberry Pi 4. This native logger usually takes less than 1% of CPU time.

Development

Testing

Run tests with cargo t.

Building

Build a debug binary with cargo b. For a release binary, add --release.

If you want to run on a Raspberry Pi, you need to download the GNU Toolchain from ARM. Cross Compiling Rust for the Raspberry Pi explains the details for that. After that, add --target armv7-unknown-linux-gnueabihf to the above command.