Speedwire to MQTT

Service to listen UDP multicast messages from SMA devices and forward the information to a MQTT server.

Configuration

This is an under-development work, so the configuration options may change at any point. See the config/default.json file to check the available options. They should be self descriptive. See the config module documentation to get the information about how to change the options (or just edit the default file).

Exported data

The service published a MQTT message every mqtt.period seconds to mqtt.topic topic. The message contains a JSON with the following format information:

• samples. Number of UDP messages received and correctly parsed since last publish.
• grid_w. Average active power consumed from grid during the period in W.
• grid_wh. Grid active energy consumption counter from last received message in Wh.
• feed_w. Average active power feeded to grid during the period in W.
• feed_wh. Grid active energy feed counter from last received message in Wh.
• grid_var. Average reactive power consumed from grid during the period in var.
• grid_varh. Grid reactive energy consumption counter from last received message in varh.
• feed_var. Average reactive power feeded to grid during the period in var.
• feed_varh. Grid reactive energy feed counter from last received message in varh.
• grid_va. Average apparent power consumed from grid during the period in va.
• grid_vah. Grid apparent energy consumption counter from last received message in vah.
• feed_va. Average apparent power feeded to grid during the period in va.
• feed_vah. Grid apparent energy feed counter from last received message in vah.

Docker

The service can be run using Docker. The image can be found at Docker HUB. Example to run the image with a custom config file (home.config.json):

docker run -it --rm --net host -v home.config.json:/usr/src/app/config/home.json -e NODE_CONFIG_ENV=home metbosch/speedwire-to-mqtt